TIF-123 – Loose Wiring May Cause Fire – 2021-2022 Tiffin Cahaba Motorhomes

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Page 1 of 10 Recall Inspection and Repair Instructions NHTSA Recall #: 22V-291 Tiffin Motorhomes Recall #: TIF-123 Models Involved: 2021 & 2022 Cahaba, all floorplans with Volta and or Dragon Fly Energy systems Tools Needed: Parts Needed: 9/16″ Wrench / Socket 5110422 – Solar Charger / Control 11/16” Wrench / Socket 5110411 – Inverter Charger 3000W 51 Volts 10 mm Wrench / Socket 5110413 – Gen 2.4 Alternator Ctrl Box 13 mm Socket Wrench 5059548 – Busmann Fuse Holder FMG Flat head screwdriver 5065599 – Fuse 60A AMG Digital Multimeter 5110414 – Converter 58V Input 14V Output 40A Torque Wrench (10 – 150) ft. lb. 5110417 – Heater Control Box Outlet Torque Wrench (10 – 200) in. lb. 5110418 – Fuse 200A – 80 Volt 5110419 – Fuse 150A – 80 Volt 5110420 – Fuse Holder / Base FLAT RATE CODE & TIME ALLOWED FOR VISUAL INSPECTION, TERMINATION TORQUE SPECS, AND SYSTEM CHECK. When filing the warranty claim for payment, please use the following flat rate codes and times. For all Cahaba Floorplans, CH9861RC01 for up to 3.00 hours. Note for parts: All part numbers for the system components are listed above. Not all parts may be needed for repair. In addition, certain shop supplies may be needed and should be billed back under the flat rate code for the recall. Note on systems: Below instructions are proper procedures for system inspection, repair, and testing Depict is Volta power system. Same procedural steps should be followed for systems using Dragon Fly Energy. INSPECTION PROCEDURE: 1. Disconnect all power from the 30-amp shore cord. 2. Make sure the Volta main system power button (Figure 1), found on shower wall behind driver’s seat, and is pushed into the “off” position – non glowing. Also, the Volta information screen should be blank when system is off. Figure: 1 Volta Main Power Button Volta Information Screen Page 2 of 10 3. Locate the service key switch on the Volta main battery pack and turn it to the “off” position. The service key switch is found on the Volta main battery pack which is below floor level outside underneath in the rear of the coach. Key will be in owner’s information bag of the coach. Only in the off position can the key be removed from the pack switch. Picture shown below of key switch found on pack. (See Figure 2 & 3) Figure: 2Figure: 2 Figure: 3Figure: 3 4.4. The main electrical system is The main electrical system is foundfound on the passenger rear bed on the passenger rear bed box andbox and can be accessed by lifting the bed lid can be accessed by lifting the bed lid to expose the main electrical componentsto expose the main electrical components. Proper securement. Proper securement / arrangement / arrangement of thof the electrical system e electrical system cocomponents can be seen in Figure 4mponents can be seen in Figure 4 Figure: 4Figure: 4 Service Key Switch Page 3 of 10 Warning: Improper installation / mounting of these components can cause life safety concern. Follow all component manufactures instructions for installation and torque specifications. REPAIR PROCEDURES: 1. Remove transparent fuse holder covers, Qty. (3) as shown in Figure 5. Figure 6 shows the cover removed. Figure: Figure: 55 Figure: 6Figure: 6 2. Remove all 5/16” 4 post power distribution bar covers (Red & Black) Figure 7 & 8 (Qty. 4) Figure: Figure: 77 Figure: Figure: 88 Power distribution bar covers Power distribution bar covers Page 4 of 10 3. Visually check for any damage of the 4 post distribution bars. (Figure 9 & 10) Replace any damaged items. Part numbers that may be needed include by not limit (5110420, 5110418, and 5110419). Tighten all 5/16” nuts on the 4 post distribution bars to 110 in. lbs. (Figure 11 & 12) Figure: Figure: 99 Figure: Figure: 1010 Figure: Figure: 11 11 Figure: 1Figure: 122 Page 5 of 10 4. Visually check for damage of the fuse and fuse holders. (Figures 13, 14, 15, and 16) Replace any damaged items. Part numbers that may be needed include by not limit (5110420, 5110418, and 5110419). Tighten nuts to manufactures torque specifications of 110 in. lbs. (Figure 17) Figure :Figure : 1133 Figure :Figure : 1144 Figure :Figure : 1155 Figure :Figure : 1166 Figure :Figure : 1177 Page 6 of 10 5. Remove the 120 VAC Inspection plate from Inverter. (Figure 17) Figure: 1Figure: 188 Check Inverter 120 VAC incoming and outgoing 10/2 120 VAC feeder cables for proper strip length of ½” and insertion into the built in WAGO inverter connectors (If inverter model is equipped). If inverter is not equipped with WAGO connector’s 10 AWG electrical grade wire nuts should be taped with electrical grade tape. Also check the clamps that secure the wiring entering and exiting the inverter. (Figure 18, and 19) Figure: 19Figure: 19 6. There are 2 types of Volta Inverter / Chargers installed on the Volta System. If Type “B” Tiffin part 5130233 Inverter/charger 3200 watt 51 G2L is installed, remove the 4 x 4 square junction box cover and 120 VAC Inspection Plate Outgoing 120 VAC Power Incoming 120 VAC Power Incoming 120 VAC Power Outgoing 120 VAC Power Electrical Connection Area showing #10 AWG Wire Nut Connector Page 7 of 10 inspect all wire nuts for proper AWG size for 10 AWG wire. Also inspect for any exposed wire showing from around wire nuts. Replace wire if necessary 2-#10 & #10G. See Figure 20, 21 and 22. Check and tighten any loose wire nut connections, tape nuts using electrical grade wiring tape, also install ¾” wire restraining clamps (RACO #2863 NM clamp type connector) as wiring enters and exits this junction box. Figure: 20Figure: 20 FigFigure: 21ure: 21 Figure: 2Figure: 222 7. Reinstall all electrical covers removed from system in any prior steps. 4 X 4 Square Junction 120 VAC 4 X 4 Square Junction 120 VAC 4 X 4 Square Junction 120 VAC Page 8 of 10 8. Visually check clamping support for alternator cabling entering below floor underneath coach into the main electrical area (Figure 23 & 24) show possible conditions). Install necessary clamping support with (Clamp, Loop Strap: 304 Stainless Steel Black, EPDM Rubber 1 1/2 “, or sized as required) to prevent cable damage. See Figure 25 & 26 for proper routing / installation and support strapping of wiring. Figure: 2Figure: 233 Figure: 2Figure: 244 Figure: 25Figure: 25 Figure: 26Figure: 26 Broken Support / Strap Wire Rubbing Tire / Broken Support Correct Routing & Support of Wire Correct Routing & Support of Wire Page 9 of 10 9. Check DC to DC Solar controller for proper wiring configuration. (Figure 27) Figure: 2Figure: 277 10. Solar controller wiring connection configuration shall be as shown in below wiring diagram Figure 28. Figure: 2Figure: 288 DC Solar Controller CH. 3 (Not Used for This Application) Page 10 of 10 11. Complete systems check as described below. A. Disconnect all power from the 30-amp shore cord. B. Turning your system on. Your inverter changes the energy storage system’s power from direct current (DC) into alternating current (AC) to power your RV’s 110-volt appliances similar to those used in a typical home. When your Volta system is on, you can access your inverter settings by pressing the inverter button, with lines representing DC and AC power, on the home screen. This allows you to check your inverter’s status, access your inverter power switch, and select your charge rate. To get the most life out of your charge, be sure to turn the inverter off when you’re not using 110-volt appliances like air conditioning or the microwave. C. Your Volta system can recharge in three ways: 1. driving your vehicle 2. Main Engine set to High-idle 3. Through connecting to shore power 4. From solar. Once your Volta system is on, the State of Charge gauge will display in the middle of the screen. Just like a fuel gauge, the SOC gauge indicates the percent of the system’s total charge. You’ll also see a few key numbers on your home screen: • The top-left shows how much time your system can run while supporting your current level of energy use. • The top-right displays your power pack’s current temperature in either Celsius or Fahrenheit. • Finally, the bottom-right shows your system’s current power flow. When your system is charging, this number will be positive, showing an influx of energy into the power pack. When you’re using more power than your system is taking in, this number will be negative. D. To turn your Volta system off, press and release the *power button, then allow the system a few seconds to power off. After it’s powered down, the touch screen and button will go dark. E. To turn your system on, simply press the *power button next to the LCD screen. After a few seconds, the ON/OFF button and touch screen will light up. *The power button is located near where the LCD screen is located in your RV F. Once your system is back online and operating, start your chassis engine and high idle at 2500 to 2800 RPM. Check the bottom-right of your home screen which shows your system’s current power flow. When your system is charging, this number will be positive, showing an influx of energy into the power pack from the secondary alternator. Turn chassis engine off. G. Once your system is back online and operating, reconnect the 30-amp shore cord to your RV. The bottom-right of your home screen shows your system’s current power flow. When your system is charging, this number will be positive, showing an influx of energy into the power pack from shore power.

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Page 1 of 10 Recall Inspection and Repair Instructions NHTSA Recall #: 22V-291 Tiffin Motorhomes Recall #: TIF-123 Models Involved: 2021 & 2022 Cahaba, all floorplans Tools Needed: Parts Needed: 9/16″ Wrench / Socket 11/16” Wrench / Socket 5110411 – Inverter Charger 3000W 51 Volts 10 mm Wrench / Socket 5110413 – Gen 2.4 Alternator Ctrl Box 13 mm Socket Wrench 5059548 – Busmann Fuse Holder FMG Flat head screwdriver 5065599 – Fuse 60A AMG Digital Multimeter 5110414 – Converter 58V Input 14V Output 40A Torque Wrench (10 – 150) ft. lb 5110417 – Heater Control Box Outlet Torque Wrench (10 – 200) in. lb 5110418 – Fuse 200A – 80 Volt 5110419 – Fuse 150A – 80 Volt 5110420 – Fuse Holder / Base 5110422 – Solar Charger / Control FLAT RATE CODE & TIME ALLOWED FOR VISUAL INSPECTION, TERMINATION TORQUE SPECS, AND SYSTEM CHECK. When filing the warranty claim for payment, please use the following flat rate codes and times. For all Cahaba Floorplans, CH9861RC01 for up to 3.00 hours. Note for parts: All part numbers for the system components are listed above. Not all parts may be needed for repair. In addition, some shop supplies will be needed and should be billed back under the flat rate code for the recall. INSPECTION PROCEDURE: 1. Disconnect all power from the 30-amp shore cord. 2. Make sure the Volta main system power button (Figure 1), located on shower wall behind driver’s seat, and is pushed into the “off” position – non glowing. Also the Volta information screen should be blank when system is off. Figure: 1 Volta Main Power Button Volta Information Screen Page 2 of 10 3. Locate the service key switch on the Volta main battery pack and turn it to the “off” position. The service key switch is located on the Volta main battery pack which is below floor level outside underneath in the rear of the coach. Key will be located in owner’s information bag of the coach. Only in the off position can the key be removed from the pack switch. Picture shown below of key switch located on pack. (See Figure 2 & 3) Figure: 2Figure: 2 Figure: 3Figure: 3 4.4. The main electrical system is located on the passenger rear bed The main electrical system is located on the passenger rear bed box andbox and can be accessed by lifting the bed can be accessed by lifting the bed lid to expose the main electrical components. Proper securementlid to expose the main electrical components. Proper securement / arrangement / arrangement of the electrical system of the electrical system cocomponents can be seen in Figure 4mponents can be seen in Figure 4 Figure: 4Figure: 4 Service Key Switch Page 3 of 10 Warning: Improper installation / mounting of these components can cause life safety concern. Follow all component manufactures instructions for installation and torque specifications. REPAIR PROCEDURES: 1. Remove transparent fuse holder covers, Qty. (3) as shown in Figure 5. Figure 6 shows the cover removed. Figure: Figure: 55 Figure: 6Figure: 6 2. Remove all 5/16” 4 post power distribution bar covers (Red & Black) Figure 7 & 8 (Qty. 4) Figure: Figure: 77 Figure: Figure: 88 Power distribution bar covers Power distribution bar covers Page 4 of 10 3. Visually check for any damage of the 4 post distribution bars. (Figure 9 & 10) Replace any damaged items. Part numbers that may be needed include by not limit (5110420, 5110418, and 5110419). Tighten all 5/16” nuts on the 4 post distribution bars to 110 in. lbs. (Figure 11 & 12) Figure: Figure: 99 Figure: Figure: 1010 Figure: Figure: 11 11 Figure: 1Figure: 122 Page 5 of 10 4. Visually check for damage of the fuse and fuse holders. (Figures 13, 14, 15, and 16) Replace any damaged items. Part numbers that may be needed include by not limit (5110420, 5110418, and 5110419). Tighten nuts to manufactures torque specifications of 110 in. lbs. (Figure 17) Figure :Figure : 1133 Figure: 1Figure: 144 Figure: 1Figure: 155 Figure: 1Figure: 166 Figure: 1Figure: 177 Page 6 of 10 5. Remove the 120 VAC Inspection plate from Inverter. (Figure 17) Figure: 1Figure: 188 Check Inverter 120 VAC incoming and outgoing 10/2 120 VAC feeder cables for proper strip length of ½” and insertion into the built in WAGO inverter connectors (If inverter model is equipped). If inverter is not equipped with WAGO connector’s 10 AWG electrical grade wire nuts should be taped with electrical grade tape. Also check the clamps that secure the wiring entering and exiting the inverter. (Figure 18, and 19) Figure: 19Figure: 19 120 VAC Inspection Plate Outgoing 120 VAC Power Incoming 120 VAC Power Incoming 120 VAC Power Outgoing 120 VAC Power Electrical Connection Area showing #10 AWG Wire Nut Connector Page 7 of 10 6. There are 2 types of Volta Inverter / Chargers installed on the Volta System. If Type “B” Tiffin part 5130233 Inverter/charger 3200 watt 51 G2L is installed, remove the 4 x 4 square junction box cover and inspect all wire nuts for proper AWG size for 10 AWG wire. Also inspect for any exposed wire showing from around wire nuts. Replace wire if necessary 2-#10 & #10G. See Figure 20, 21 and 22. Check and tighten any loose wire nut connections, tape nuts using electrical grade wiring tape, also install ¾” wire restraining clamps (RACO #2863 NM clamp type connector) as wiring enters and exits this junction box. Figure: 20Figure: 20 Figure: 21Figure: 21 Figure: 2Figure: 222 4 X 4 Square Junction 120 VAC 4 X 4 Square Junction 120 VAC 4 X 4 Square Junction 120 VAC Page 8 of 10 7. Reinstall all electrical covers removed from system in any prior steps. 8. Visually check clamping support for alternator cabling entering below floor underneath coach into the main electrical area (Figure 23 & 24) show possible conditions). Install necessary clamping support with (Clamp, Loop Strap: 304 Stainless Steel Black, EPDM Rubber 1 1/2 “, or sized as required) to prevent cable damage. See Figure 25 & 26 for proper routing / installation and support strapping of wiring. Figure: 2Figure: 233 Figure: 2Figure: 244 Figure: 25Figure: 25 Figure: 26Figure: 26 Broken Support / Strap Wire Rubbing Tire / Broken Support Correct Routing & Support Of Wire Correct Routing & Support Of Wire Page 9 of 10 9. Check DC to DC Solar controller for proper wiring configuration. (Figure 27) Figure: 2Figure: 277 10. Solar controller wiring connection configuration shall be as shown in below wiring diagram Figure 28. Figure: 2Figure: 288 DC Solar Controller CH. 3 (Not Used For This Application) Page 10 of 10 11. Complete systems check as described below. A. Turning your system on. Your inverter changes the energy storage system’s power from direct current (DC) into alternating current (AC) to power your RV’s 110-volt appliances similar to those used in a typical home. When your Volta system is on, you can access your inverter settings by pressing the inverter button, with lines representing DC and AC power, on the home screen. This allows you to check your inverter’s status, access your inverter power switch, and select your charge rate. To get the most life out of your charge, be sure to turn the inverter off when you’re not using 110-volt appliances like air conditioning or the microwave. B. Your Volta system can recharge in three ways: 1. driving your vehicle 2. Main Engine set to High-idle 3. Through connecting to shore power 4. From solar once your Volta system is on, the State of Charge gauge will display in the middle of the screen. Just like a fuel gauge, the SOC gauge indicates the percent of the system’s total charge. You’ll also see a few key numbers on your home screen: • The top-left shows how much time your system can run while supporting your current level of energy use. • The top-right displays your power pack’s current temperature in either Celsius or Fahrenheit. • Finally, the bottom-right shows your system’s current power flow. When your system is charging, this number will be positive, showing an influx of energy into the power pack. When you’re using more power than your system is taking in, this number will be negative. C. To turn your Volta system off, press and release the *power button, then allow the system a few seconds to power off. After it’s powered down, the touch screen and button will go dark. D. To turn your system on, simply press the *power button next to the LCD screen. After a few seconds, the ON/OFF button and touch screen will light up. *The power button is located near where the LCD screen is located in your RV

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Page 1 of 2 105 2nd Street NW Red Bay, Alabama 35582 IMPORTANT SAFETY RECALL This notice applies to your vehicle, VIN: NHTSA Recall # 22V-291 Tiffin Recall # TIF-123 June 30, 2022 Cahaba Improper Wiring and Inverter Installation Dear Tiffin Motorhome Owner or Dealer, This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act. Tiffin Motorhomes has decided that a defect, which relates to motor vehicle safety, exists in certain 2021 and 2022 Cahaba Motorhomes, all floorplans. Tiffin Motorhomes has become aware of the possibility that on these motorhomes, the 110-volt and 12-volt electrical system may be improperly installed, and that the inverter may not be secured. Improperly installed and unsecured electrical items may lead to a fire. Tiffin Motorhomes will have the installation of the electrical system inspected, secure the wiring as needed and replace any damaged components as needed. Please arrange to take your motorhome to a reputable service center OR dealer of your choice to have the correction completed. The recall repair will take approximately 3 hours and will be completed at no charge to you, the owner. If you are using a service center that is not a Tiffin Motorhomes authorized repair facility, please make sure that they contact Tiffin Motorhomes for the required parts, instructions and time allowed for the repair. Tiffin Motorhomes will not pay over the allowed time unless the repair facility receives a prior authorization. For authorization, contact Tiffin Motorhomes at 256-356-0261 or [email protected] . You may be liable for any progressive damage that results from your failure to complete the recall within a reasonable time after receiving notification. Page 2 of 2 If owners have paid to have this repair completed, please send a copy of the invoice, that was paid by the owner to Tiffin Motorhomes at the following address: Tiffin Motorhomes, attn: Recalls, 105 2nd Street NW, Red Bay AL 35582 or by email to [email protected]. Please make sure the invoice notes who paid for the repair, the VIN of the motorhome and the date the repair was completed. If you do not own the vehicle that corresponds to the vehicle identification number which appears on this Recall Notification, please return the notification to the Tiffin Warranty Department with any information you can furnish that will assist us in locating the present owner. You may also send an email to [email protected]. If you are unable to have the defect remedied without charge and within a reasonable time after you tender the vehicle for repair, please contact the Tiffin Warranty Department, at 1-256-356-8661, 8:00 a.m. to 3:30 p.m., Central Time. You may also wish to notify the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue SE, Washington DC 20590, or phone 1-888-327-4236 (TTY: 1-800-424-9153): or go to http://www.safercar.gov. Federal regulations require that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days. We regret any inconvenience this action may cause, but feel certain you understand our interest in motor vehicle safety. Tiffin Recall Department

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Page 1 of 1 105 2nd Street NW Red Bay, Alabama 35582 IMPORTANT SAFETY RECALL NHTSA Recall # 22V-291 Tiffin Recall # TIF-123 June 28, 2022 Cahaba Improper Wiring, and Inverter Installation Dear Tiffin Motorhome Dealer, This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act. Tiffin Motorhomes has decided that a defect, which relates to motor vehicle safety, exists in certain 2021 and 2022 Cahaba Motorhomes, all floorplans. Tiffin Motorhomes has become aware of the possibility that on these motorhomes, the 110-volt and 12-volt electrical system may be improperly installed, and that the inverter may not be secured. Improperly installed and unsecured electrical items may lead to a fire. Tiffin Motorhomes will have the installation of the electrical system inspected and secure the wiring as needed and replace any damaged components as needed. Owners will be notified by mail about the recall and will be instructed to take their motorhome to a reputable service center OR dealer of their choice to have this correction completed. Tiffin is allowing 3 hours for the repair of this recall. There is no cost to owners for this recall. Tiffin Motorhomes will not pay over the allowed time unless the repair facility receives a prior authorization. For authorization, contact Tiffin Motorhomes at 256-356-0261 or [email protected]. To verify a motorhome’s involvement in this recall, please visit our website, TiffinMotorhomes.com. Choose the “Dealer Login” page and click on “Vehicle Recall Lookup” and enter the complete 17-digit VIN number. No login or password is needed. To view work instructions, please click on “Flat Rate Manual” and choose RECALL for Model and Section, scroll down to the NHTSA recall number for the recall you are looking for and choose “Show Files” and then download the work instructions. Please be reminded that it is a violation of Federal law for you to sell or lease any new Cahaba Motorhome covered by this notification until this recall has been performed on the motorhome. Substantial civil penalties apply to violations of this law. We regret any inconvenience this action may cause but feel certain you understand our interest in motor vehicle safety. Tiffin Compliance Department

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-291 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Tiffin Motorhomes, Inc. Submission Date : JUN 30, 2022 NHTSA Recall No. : 22V-291 Manufacturer Recall No. : TIF-123 Manufacturer Information : Manufacturer Name : Tiffin Motorhomes, Inc. Address : 105 2nd Street NW PO Box 596 Red Bay AL 35582 Company phone : 999 Population : Number of potentially involved : 243 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2021-2022 Tiffin Cahaba Vehicle Type : LIGHT VEHICLES Body Style : VAN Power Train : DIESEL Descriptive Information : In review of manufacturing records, it was determined that the scope started when we began production of the Cahaba model. 2021=24 units, 2022=219 units. Production Dates : JUL 14, 2021 – APR 28, 2022 VIN Range 1 : Begin : W1W4EBVY4LT020207 End : W1W4EBVYXLT040980 ✔ Not sequential Description of Defect : Description of the Defect : Electrical problems with 110 and 12 volt system due to poor installation practices. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : Any of the events described under cause, could enable the unit to catch fire. Description of the Cause : Loose wiring on 110 and 12 volt system, loose wiring on buss bar, loose terminals, possibility of inverter and dragon fly (battery) not being secured, possibility of J-box cover not being installed, insulation and no stress relief on 110 wiring to junction box. Identification of Any Warning that can Occur : Intermittent electrical functionality Involved Components : Part 573 Safety Recall Report 22V-291 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : Inverter Charger 3000W 51 Volts Component Description : Inverter Component Part Number : 5110411 Component Name 2 : Gen 2.4 Alternator Ctrl Box Component Description : Control Box Component Part Number : 5110413 Component Name 3 : Busmann Fuse Holder FMG Component Description : Fuse Holder Component Part Number : 5059548 Component Name 4 : Fuse 60A AMG Component Description : Fuse Component Part Number : 5065599 Component Name 5 : Converter 58V Input 14V Output 40A Component Description : Converter Component Part Number : 5110414 Component Name 6 : Heater Control Box Outlet Component Description : Box Outlet Component Part Number : 5110417 Component Name 7 : Fuse 200A – 80 Volt Component Description : Fuse Component Part Number : 5110418 Part 573 Safety Recall Report 22V-291 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 8 : Fuse 150A – 80 Volt Component Description : Fuse Component Part Number : 5110419 Component Name 9 : Fuse Holder / Base Component Description : Fuse Holder / Base Component Part Number : 5110420 Component Name 10 : Solar Charger / Control Component Description : Solar Charger / Control Component Part Number : 5110422 Supplier Identification : Component Manufacturer Name : NR Address : NR NR Country : NR Chronology : 4/18/2022 – Received notification from our Service Center that there was a Cahaba with loose wiring and connections. 4/20/2022 – Inspection of units in the yard. 4/26/2022 – Reviewed inspection results. No warranty claims lent information to the investigation. No deaths or injuries. 4/27/2022 – Tiffin Safety Committee voted to recall. Part 573 Safety Recall Report 22V-291 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Remedy : Description of Remedy Program : Work instructions will be issued detailing components that need to be inspected, as well as torque specs that need to be checked. All units will be inspected. This will be done at no charge to the owner of coach. There is no plan for reimbursement of past issues because if there were any issues, it would have been taken care of under Tiffin Warranty. How Remedy Component Differs from Recalled Component : The remedied units will have all loose connections tightened, torque specs met, securements in place, and all electrical problems listed in recall taken care of. Also, it will be checked by Quality Manager before sending out to dealer. Identify How/When Recall Condition was Corrected in Production : On 4/26/2022, an Engineering Change Notification #63094 was drafted for changes in production. Torque wrenches were issued and employees were retrained. Recall Schedule : Description of Recall Schedule : Tiffin will send letters to customers and dealers that are in possession of coaches explaining the problem and asking them to take the motorhome to a dealer for proper inspection and/or repair at no cost to them. Planned Dealer Notification Date : JUL 01, 2022 – JUL 01, 2022 Planned Owner Notification Date : JUL 01, 2022 – JUL 01, 2022 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-291 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Tiffin Motorhomes, Inc. Submission Date : MAY 03, 2022 NHTSA Recall No. : 22V-291 Manufacturer Recall No. : TIF-123 Manufacturer Information : Manufacturer Name : Tiffin Motorhomes, Inc. Address : 105 2nd Street NW PO Box 596 Red Bay AL 35582 Company phone : 999 Population : Number of potentially involved : 243 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2021-2022 Tiffin Cahaba Vehicle Type : LIGHT VEHICLES Body Style : VAN Power Train : DIESEL Descriptive Information : In review of manufacturing records, it was determined that the scope started when we began production of the Cahaba model. 2021=24 units, 2022=219 units. Production Dates : JUL 14, 2021 – APR 28, 2022 VIN Range 1 : Begin : W1W4EBVY4LT020207 End : W1W4EBVYXLT040980 ✔ Not sequential Description of Defect : Description of the Defect : Electrical problems with 110 system due to poor installation practices. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : Any of the events described under cause, could enable the unit to catch fire. Description of the Cause : Loose wiring on 110 system, loose wiring on buss bar, loose terminals, possibility of inverter and dragon fly (battery) not being secured, possibility of J-box cover not being installed, insulation and no stress relief on 110 wiring to junction box. Identification of Any Warning that can Occur : Intermittent electrical functionality Involved Components : Part 573 Safety Recall Report 22V-291 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : NR Component Description : NR Component Part Number : NR Supplier Identification : Component Manufacturer Name : NR Address : NR NR Country : NR Chronology : 4/18/2022 – Received notification from our Service Center that there was a Cahaba with loose wiring and connections. 4/20/2022 – Inspection of units in the yard. 4/26/2022 – Reviewed inspection results. 4/27/2022 – Tiffin Safety Committee voted to recall. Description of Remedy : Description of Remedy Program : Work instructions will be issued detailing components that need to be inspected, as well as torque specs that need to be checked. All units will be inspected. This will be done at no charge to the owner of coach. There is no plan for reimbursement of past issues because if there were any issues, it would have been taken care of under Tiffin Warranty. How Remedy Component Differs from Recalled Component : The remedied units will have all loose connections tightened, torque specs met, securements in place, and all electrical problems listed in recall taken care of. Also, it will be checked by Quality Manager before sending out to dealer. Identify How/When Recall Condition was Corrected in Production : On 4/26/2022, an Engineering Change Notification #63094 was drafted for changes in production. Torque wrenches were issued and employees were retrained. Recall Schedule : Description of Recall Schedule : Tiffin will send letters to customers and dealers that are in possession of Part 573 Safety Recall Report 22V-291 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 coaches explaining the problem and asking them to take the motorhome to a dealer for proper inspection and/or repair at no cost to them. Planned Dealer Notification Date : JUL 01, 2022 – JUL 01, 2022 Planned Owner Notification Date : JUL 01, 2022 – JUL 01, 2022 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-291 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Tiffin Motorhomes, Inc. Submission Date : JUN 30, 2022 NHTSA Recall No. : 22V-291 Manufacturer Recall No. : TIF-123 Manufacturer Information : Manufacturer Name : Tiffin Motorhomes, Inc. Address : 105 2nd Street NW PO Box 596 Red Bay AL 35582 Company phone : 999 Population : Number of potentially involved : 243 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2021-2022 Tiffin Cahaba Vehicle Type : LIGHT VEHICLES Body Style : VAN Power Train : DIESEL Descriptive Information : In review of manufacturing records, it was determined that the scope started when we began production of the Cahaba model. 2021=24 units, 2022=219 units. Production Dates : JUL 14, 2021 – APR 28, 2022 VIN Range 1 : Begin : W1W4EBVY4LT020207 End : W1W4EBVYXLT040980 ✔ Not sequential Description of Defect : Description of the Defect : Electrical problems with 110 and 12 volt system due to poor installation practices. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : Any of the events described under cause, could enable the unit to catch fire. Description of the Cause : Loose wiring on 110 system, loose wiring on buss bar, loose terminals, possibility of inverter and dragon fly (battery) not being secured, possibility of J-box cover not being installed, insulation and no stress relief on 110 wiring to junction box. Identification of Any Warning that can Occur : Intermittent electrical functionality Involved Components : Part 573 Safety Recall Report 22V-291 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : Inverter Charger 3000W 51 Volts Component Description : Inverter Component Part Number : 5110411 Component Name 2 : Gen 2.4 Alternator Ctrl Box Component Description : Control Box Component Part Number : 5110413 Component Name 3 : Busmann Fuse Holder FMG Component Description : Fuse Holder Component Part Number : 5059548 Component Name 4 : Fuse 60A AMG Component Description : Fuse Component Part Number : 5065599 Component Name 5 : Converter 58V Input 14V Output 40A Component Description : Converter Component Part Number : 5110414 Component Name 6 : Heater Control Box Outlet Component Description : Box Outlet Component Part Number : 5110417 Component Name 7 : Fuse 200A – 80 Volt Component Description : Fuse Component Part Number : 5110418 Part 573 Safety Recall Report 22V-291 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 8 : Fuse 150A – 80 Volt Component Description : Fuse Component Part Number : 5110419 Component Name 9 : Fuse Holder / Base Component Description : Fuse Holder / Base Component Part Number : 5110420 Component Name 10 : Solar Charger / Control Component Description : Solar Charger / Control Component Part Number : 5110422 Supplier Identification : Component Manufacturer Name : NR Address : NR NR Country : NR Chronology : 4/18/2022 – Received notification from our Service Center that there was a Cahaba with loose wiring and connections. 4/20/2022 – Inspection of units in the yard. 4/26/2022 – Reviewed inspection results. No warranty claims lent information to the investigation. No deaths or injuries. 4/27/2022 – Tiffin Safety Committee voted to recall. Part 573 Safety Recall Report 22V-291 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Remedy : Description of Remedy Program : Work instructions will be issued detailing components that need to be inspected, as well as torque specs that need to be checked. All units will be inspected. This will be done at no charge to the owner of coach. There is no plan for reimbursement of past issues because if there were any issues, it would have been taken care of under Tiffin Warranty. How Remedy Component Differs from Recalled Component : The remedied units will have all loose connections tightened, torque specs met, securements in place, and all electrical problems listed in recall taken care of. Also, it will be checked by Quality Manager before sending out to dealer. Identify How/When Recall Condition was Corrected in Production : On 4/26/2022, an Engineering Change Notification #63094 was drafted for changes in production. Torque wrenches were issued and employees were retrained. Recall Schedule : Description of Recall Schedule : Tiffin will send letters to customers and dealers that are in possession of coaches explaining the problem and asking them to take the motorhome to a dealer for proper inspection and/or repair at no cost to them. Planned Dealer Notification Date : JUL 01, 2022 – JUL 01, 2022 Planned Owner Notification Date : JUL 01, 2022 – JUL 01, 2022 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-291 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Tiffin Motorhomes, Inc. Submission Date : JUN 16, 2022 NHTSA Recall No. : 22V-291 Manufacturer Recall No. : TIF-123 Manufacturer Information : Manufacturer Name : Tiffin Motorhomes, Inc. Address : 105 2nd Street NW PO Box 596 Red Bay AL 35582 Company phone : 999 Population : Number of potentially involved : 243 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2021-2022 Tiffin Cahaba Vehicle Type : LIGHT VEHICLES Body Style : VAN Power Train : DIESEL Descriptive Information : In review of manufacturing records, it was determined that the scope started when we began production of the Cahaba model. 2021=24 units, 2022=219 units. Production Dates : JUL 14, 2021 – APR 28, 2022 VIN Range 1 : Begin : W1W4EBVY4LT020207 End : W1W4EBVYXLT040980 ✔ Not sequential Description of Defect : Description of the Defect : Electrical problems with 110 system due to poor installation practices. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : Any of the events described under cause, could enable the unit to catch fire. Description of the Cause : Loose wiring on 110 system, loose wiring on buss bar, loose terminals, possibility of inverter and dragon fly (battery) not being secured, possibility of J-box cover not being installed, insulation and no stress relief on 110 wiring to junction box. Identification of Any Warning that can Occur : Intermittent electrical functionality Involved Components : Part 573 Safety Recall Report 22V-291 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : Inverter Charger 3000W 51 Volts Component Description : Inverter Component Part Number : 5110411 Component Name 2 : Gen 2.4 Alternator Ctrl Box Component Description : Control Box Component Part Number : 5110413 Component Name 3 : Busmann Fuse Holder FMG Component Description : Fuse Holder Component Part Number : 5059548 Component Name 4 : Fuse 60A AMG Component Description : Fuse Component Part Number : 5065599 Component Name 5 : Converter 58V Input 14V Output 40A Component Description : Converter Component Part Number : 5110414 Component Name 6 : Heater Control Box Outlet Component Description : Box Outlet Component Part Number : 5110417 Component Name 7 : Fuse 200A – 80 Volt Component Description : Fuse Component Part Number : 5110418 Part 573 Safety Recall Report 22V-291 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 8 : Fuse 150A – 80 Volt Component Description : Fuse Component Part Number : 5110419 Component Name 9 : Fuse Holder / Base Component Description : Fuse Holder / Base Component Part Number : 5110420 Component Name 10 : Solar Charger / Control Component Description : Solar Charger / Control Component Part Number : 5110422 Supplier Identification : Component Manufacturer Name : NR Address : NR NR Country : NR Chronology : 4/18/2022 – Received notification from our Service Center that there was a Cahaba with loose wiring and connections. 4/20/2022 – Inspection of units in the yard. 4/26/2022 – Reviewed inspection results. No warranty claims lent information to the investigation. No deaths or injuries. 4/27/2022 – Tiffin Safety Committee voted to recall. Part 573 Safety Recall Report 22V-291 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Remedy : Description of Remedy Program : Work instructions will be issued detailing components that need to be inspected, as well as torque specs that need to be checked. All units will be inspected. This will be done at no charge to the owner of coach. There is no plan for reimbursement of past issues because if there were any issues, it would have been taken care of under Tiffin Warranty. How Remedy Component Differs from Recalled Component : The remedied units will have all loose connections tightened, torque specs met, securements in place, and all electrical problems listed in recall taken care of. Also, it will be checked by Quality Manager before sending out to dealer. Identify How/When Recall Condition was Corrected in Production : On 4/26/2022, an Engineering Change Notification #63094 was drafted for changes in production. Torque wrenches were issued and employees were retrained. Recall Schedule : Description of Recall Schedule : Tiffin will send letters to customers and dealers that are in possession of coaches explaining the problem and asking them to take the motorhome to a dealer for proper inspection and/or repair at no cost to them. Planned Dealer Notification Date : JUL 01, 2022 – JUL 01, 2022 Planned Owner Notification Date : JUL 01, 2022 – JUL 01, 2022 * NR – Not Reported

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