February 7, 2024 NHTSA CAMPAIGN NUMBER: 24V076000
Software Error May Cause a Loss of Drive Power
A sudden loss of drive power increases the risk of a crash.
NHTSA Campaign Number: 24V076
Manufacturer Lucid
USA, Inc.
Components FORWARD COLLISION AVOIDANCE
Potential Number of Units Affected 189
Summary
Lucid USA, Inc. (Lucid) is recalling certain 2022-2024 Air vehicles running software release versions 2.1.2 through 2.1.26. The software may cause a fault while the adaptive cruise control is on, resulting in a loss of drive power.
Remedy
Lucid released an over-the-air (OTA) software update in October 2023, free of charge. Owner notification letters are expected to be mailed March 8, 2024. Owners may contact Lucid customer service at 1-888-995-8243. Lucid’s number for this recall is SR-24-02-0.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Vehicle Control Unit (VCU) Torque Monitor Fault
02/13/2024
Concern
Loss of Motive Power can occur if the specific sequence of driver inputs occurs while using Adaptive Cruise Control.
Cause
Software 2.1.2 introduced the improper Torque Monitor Fault sequence.
Correction
Update to the most current software available.
Technical Instructions
- Using the vehicle display, determine the currently installed Software version.
- Is the currently installed Software version less than 2.1.2 or greater than 2.1.26?
REQUIRED (OK) software version is LESS THAN 2.1.2 or GREATER THAN 2.1.26
If the Current Version is between 2.1.2 and 2.1.26, go to step 3.
If the Current Version IS LESS THAN 2.1.2 or GREATER THAN 2.1.26, go to step 5.
- Using the “OTA Service Request” tile in Lucid Garage, update to the most current Software version available (minimum v2.1.52). Refer to Over The Air (OTA) Flashing.
- Check and clear DTCs. Refer to DTCs Check and Clear.
- No further action required. Release the vehicle.
Chronology :
Vehicle software with the defect described above are software versions 2.1.2 – 2.1.26, inclusive (the “Affected Versions”). Software version 2.1.2 was transmitted to customer vehicles via over-the-air (OTA) update on or after June 29, 2023.
On September 8, one customer vehicle experienced a drive system fault while driving and contacted a Lucid Service Center. Service personnel analyzed and escalated the issue to Engineering and Software. The torque monitor logic that could lead to the fault was removed in software version 2.1.30, which was released to customer vehicles via OTA update on or after October 16.
On December 2, a second customer vehicle that was still operating on an Affected Version of software experienced a drive system fault and contacted a Lucid Service Center. This second customer occurrence was escalated to Engineering and Software, and then reported to Lucid’s Product Safety Working Group (PSWG).
The PSWG met on January 4 and January 9, 2024, to review and analyze the issue. The PSWG briefed Lucid’s Product Safety Officer on January 17 and briefed Lucid’s Produce Safety Executive Council (PSEC) on January 31.
The PSEC determined an unreasonable risk to safety due to the possibility of unwarned loss of drive power exists in vehicles operating on Affected Versions of software. Lucid is issuing this recall to encourage Lucid Air owners to accept installation of the Remedy Version of software, or later, which have already been sent to vehicles via OTA update.
3 Affected Products
Vehicle
| MAKE | MODEL | YEAR |
| LUCID | AIR | 2022-2024 |
4 Associated Documents
Recall 573 Report – 2/12/2024
RCLRPT-24V076-6758.PDF 215.115KB
Recall 573 Report
RCLRPT-24V076-4394.PDF 215.131KB
Recall Acknowledgement
RCAK-24V076-2572.pdf 645.412KB
Remedy Instructions and TSB – TSC Number: TSC-K0224-015-01 Date: 02/13/2024
RCRIT-24V076-0486.pdf 194.441KB
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SEOCONTENT-START
OMB Control No.: 2127-0004
Part 573 Safety Recall Report 24V-076
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Lucid USA, Inc. FEB 12, 2024 NHTSA Recall No. : 24V-076 Manufacturer Recall No. : SR-24-02-0 Manufacturer Information :
Manufacturer Name : Lucid USA, Inc.
Address : 7373 Gateway Blvd.
Newark CA 94560 Company phone : 1-510-648-3553
Population :
Number of potentially involved : 189 Estimated percentage with defect : 100 %
Vehicle Information : Vehicle 1 : 2022-2024 Lucid Air Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : NR
Descriptive Information : Lucid determined that a fault is possible in software versions 2.1.2-2.1.26, inclusive (the “Affected Versions”), that could lead to an unwarned loss of drive power. Lucid is issuing this recall to advise owners of vehicles operating on Affected Versions of the defect and to accept the software remedy for their vehicle, which has already been provided. A software update removing the possible fault condition is included in version 2.1.30 (the “Remedy Version”) and later versions. The Remedy Version was released via over-the-air (OTA) update on October 16, 2023. A customer vehicle running an Affected Version experienced a fault in December 2023, which led to the safety investigation of this issue. Vehicles that are not operating on an Affected Version of software are not susceptible to the fault. Lucid determined through vehicle telematics that owners of 189 U.S. customer vehicles still had not updated their software from an Affected Version to the Remedy Version or beyond.
Production Dates : NOV 10, 2021 – DEC 05, 2023
VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect :
Description of the Defect : Vehicles on Affected Versions of software may experience a torque monitor fault under certain conditions that could lead to loss of drive power without a warning.
FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : A loss of drive power without warning to the driver increases the likelihood
of a crash. Part 573 Safety Recall Report 24V-076 Page 2 Description of the Cause : The torque monitor logic in Affected Versions of software can cause a fault leading to loss of drive power without prior warning under certain conditions. Identification of Any Warning
that can Occur : For the fault to occur, the Lucid vehicle must be operating on an Affected Version of software and have Adaptive Cruise Control (ACC) on; the Lucid vehicle must then detect an unexpected obstacle or other vehicle that causes ACC to decelerate, the driver must accelerate to override ACC, and then, within a narrow time window, the driver must cancel ACC via either the steering wheel button or by braking.
Under the conditions described above, the driver would not receive any prior warning. Involved Components : Component Name 1 : Software Versions 2.1.2 – 2.1.26 Component Description : NR
Component Part Number : NR Supplier Identification : Component Manufacturer
Name : NR Address : NR
NR
Country : NR Chronology :
Vehicle software with the defect described above are software versions 2.1.2 – 2.1.26, inclusive (the “Affected Versions”). Software version 2.1.2 was transmitted to customer vehicles via over-the-air (OTA) update on or after June 29, 2023. On September 8, one customer vehicle experienced a drive system fault while driving and contacted a Lucid Service Center. Service personnel analyzed and escalated the issue to Engineering and Software. The torque monitor logic that could lead to the fault was removed in software version 2.1.30, which was released to customer vehicles via OTA update on or after October 16. On December 2, a second customer vehicle that was still operating on an Affected Version of software experienced a drive system fault and contacted a Lucid Service Center. This second customer occurrence was escalated to Engineering and Software, and then reported to Lucid’s Product Safety Working Group (PSWG). The PSWG met on January 4 and January 9, 2024, to review and analyze the issue. The PSWG briefed Lucid’s Product Safety Officer on January 17 and briefed Lucid’s Produce Safety Executive Council (PSEC) on January 31. The PSEC determined an unreasonable The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 24V-076
Page 3
The information contained in this report was submitted pursuant to 49 CFR §573
risk to safety due to the possibility of unwarned loss of drive power exists in vehicles operating on Affected Versions of software. Lucid is issuing this recall to encourage Lucid Air owners to accept installation of the Remedy Version of software, or later, which have already been sent to vehicles via OTA update.
Description of Remedy :
Description of Remedy Program : Software upgrades have been provided to customers at NO COST. Owners
of affected vehicles will be notified by first class mail with instructions to upgrade their software or contact Lucid Customer Care for assistance in doing so, at NO COST. How Remedy Component Differs from Recalled Component :
Identify How/When Recall Condition was Corrected in Production :
Lucid will reimburse owners for costs an owner reasonably incurred to obtain a remedy for this defect during the period starting from initial vehicle delivery through 10 days after Lucid’s mailing of the owner notification letter concerning this noncompliance. If an owner has such a claim for pre-notification reimbursement, they may contact Lucid Customer Care at 1-888-99-LUCID or 1-888-995-8243.
The Remedy Version of software, and later versions, do not include the torque monitor logic found in Affected Versions.
As of October 8, 2023, all vehicles at Lucid’s factory have had version
2.1.30 or later installed, and all vehicles are upgraded to 2.1.30 or later prior to delivery to customers. Recall Schedule :
Description of Recall Schedule : Owners of vehicles in the recall population will be notified by email,
mobile app, and first-class mail with instructions to update their software to the latest version and that they may contact Lucid Customer Care or a Lucid Service Center if they need assistance with software updates. There will be NO COST for this service.
Planned Dealer Notification Date : FEB 07, 2024 – FEB 07, 2024
Planned Owner Notification Date : APR 05, 2024 – APR 05, 2024
* NR – Not Reported
**************************************************************************************************************
OMB Control No.: 2127-0004
Part 573 Safety Recall Report 24V-076
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Lucid USA, Inc. FEB 07, 2024 NHTSA Recall No. : 24V-076 Manufacturer Recall No. : SR-24-02-0 Manufacturer Information :
Manufacturer Name : Lucid USA, Inc.
Address : 7373 Gateway Blvd.
Newark CA 94560 Company phone : 1-510-648-3553
Population :
Number of potentially involved : 189 Estimated percentage with defect : 100 %
Vehicle Information : Vehicle 1 : 2022-2024 Lucid Air Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : NR
Descriptive Information : Lucid determined that a fault is possible in software versions 2.1.2-2.1.26, inclusive (the “Affected Versions”), that could lead to an unwarned loss of drive power. Lucid is issuing this recall to advise owners of vehicles operating on Affected Versions of the defect and to accept the software remedy for their vehicle, which has already been provided. A software update removing the possible fault condition is included in version 2.1.30 (the “Remedy Version”) and later versions. The Remedy Version was released via over-the-air (OTA) update on October 8, 2023. A customer vehicle running an Affected Version experienced a fault in December 2023, which led to the safety investigation of this issue. Vehicles that are not operating on an Affected Version of software are not susceptible to the fault. Lucid determined through vehicle telematics that owners of 189 U.S. customer vehicles still had not updated their software from an Affected Version to the Remedy Version or beyond.
Production Dates : NOV 10, 2021 – DEC 05, 2023
VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect :
Description of the Defect : Vehicles on Affected Versions of software may experience a torque monitor fault under certain conditions that could lead to loss of drive power without a warning.
FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : A loss of drive power without warning to the driver increases the likelihood
of a crash. Part 573 Safety Recall Report 24V-076 Page 2 Description of the Cause : The torque monitor logic in Affected Versions of software can cause a fault leading to loss of drive power without prior warning under certain conditions. Identification of Any Warning
that can Occur : For the fault to occur, the Lucid vehicle must be operating on an Affected Version of software and have Adaptive Cruise Control (ACC) on; the Lucid vehicle must then detect an unexpected obstacle or other vehicle that causes ACC to decelerate, the driver must accelerate to override ACC, and then, within a narrow time window, the driver must cancel ACC via either the steering wheel button or by braking.
Under the conditions described above, the driver would not receive any prior warning. Involved Components : Component Name 1 : Software Versions 2.1.2 – 2.1.26 Component Description : NR
Component Part Number : NR Supplier Identification : Component Manufacturer
Name : NR Address : NR
NR
Country : NR Chronology :
Vehicle software with the defect described above are software versions 2.1.2 – 2.1.26, inclusive (the “Affected Versions”). Software version 2.1.2 was transmitted to customer vehicles via over-the-air (OTA) update on or after June 29, 2023. On September 8, one customer vehicle experienced a drive system fault while driving and contacted a Lucid Service Center. Service personnel analyzed and escalated the issue to Engineering and Software. The torque monitor logic that could lead to the fault was removed in software version 2.1.30, which was released to customer vehicles via OTA update on or after October 16. On December 2, a second customer vehicle that was still operating on an Affected Version of software experienced a drive system fault and contacted a Lucid Service Center. This second customer occurrence was escalated to Engineering and Software, and then reported to Lucid’s Product Safety Working Group (PSWG). The PSWG met on January 4 and January 9, 2024, to review and analyze the issue. The PSWG briefed Lucid’s Product Safety Officer on January 17 and briefed Lucid’s Produce Safety Executive Council (PSEC) on January 31. The PSEC determined an unreasonable The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 24V-076
Page 3
The information contained in this report was submitted pursuant to 49 CFR §573
risk to safety due to the possibility of unwarned loss of drive power exists in vehicles operating on Affected Versions of software. Lucid is issuing this recall to encourage Lucid Air owners to accept installation of the Remedy Version of software, or later, which have already been sent to vehicles via OTA update.
Description of Remedy :
Description of Remedy Program : Software upgrades have been provided to customers at NO COST. Owners
of affected vehicles will be notified by first class mail with instructions to upgrade their software or contact Lucid Customer Care for assistance in doing so, at NO COST. How Remedy Component Differs from Recalled Component :
Identify How/When Recall Condition was Corrected in Production :
Lucid will reimburse owners for costs an owner reasonably incurred to obtain a remedy for this defect during the period starting from initial vehicle delivery through 10 days after Lucid’s mailing of the owner notification letter concerning this noncompliance. If an owner has such a claim for pre-notification reimbursement, they may contact Lucid Customer Care at 1-888-99-LUCID or 1-888-995-8243.
The Remedy Version of software, and later versions, do not include the torque monitor logic found in Affected Versions.
As of October 8, 2023, all vehicles at Lucid’s factory have had version
2.1.30 or later installed, and all vehicles are upgraded to 2.1.30 or later prior to delivery to customers. Recall Schedule :
Description of Recall Schedule : Owners of vehicles in the recall population who have not updated their
software will be notified by email, mobile app, and first class mail with instructions to update their software to the latest version and that they may contact Lucid Customer Care or a Lucid Service Center if they need assistance with software updates. There will be NO COST for this service.
Planned Dealer Notification Date : FEB 07, 2024 – FEB 07, 2024
Planned Owner Notification Date : APR 05, 2024 – APR 05, 2024
* NR – Not Reported
**************************************************************************************************************
Lucid Group Inc. Technical Service Campaign
TSC Number: TSC-K0224-015-01 Date: 02/13/2024
Document Classification: Perform on next service visit Model: Lucid Air
Year: 2022-2023
Title: Vehicle Control Unit (VCU) Torque Monitor Fault Region: All Regions
Concern
Loss of Motive Power can occur if the specific sequence of driver inputs occurs while using Adaptive
Cruise Control.
Cause
Software 2.1.2 introduced the improper Torque Monitor Fault sequence.
Correction
Update to the most current software available.
Parts Information
Warranty Information
To help ensure that all vehicle repairs are claimed correctly, please reference the following when creating
work orders for this Technical Service Correction:
Job Code: TSC-K0224-015-01
Pay Type
Pre-Delivery Vehicles: Rectify
Post-Delivery Vehicles: Campaign
Defect Code: TSC
Causal Part Number:
Part Number Part Description Qty
P11-K11000 Vehicle Control Unit (VCU) 1
Use the following Labor Operation Codes that reflects the procedure performed on the vehicle:
Entire Page Confidential Business Information 49 CFR part 512
TSC-K0224-015-01 ©2024 Lucid Group, Inc. Page 1
Labor Op Code Description Action FRT
55.054503 TSC-K0224-015 VCU Torque Monitor
Fault
No software update needed 0.1
55.054504 TSC-K0224-015 VCU Torque Monitor
Fault
Software update required 0.8
Technical Instructions
1. Using the vehicle display, determine the currently installed Software version.
2. Is the currently installed Software version less than 2.1.2 or greater than 2.1.26?
REQUIRED (OK) software version is LESS THAN 2.1.2 or GREATER THAN 2.1.26
○ If the Current Version is between 2.1.2 and 2.1.26, go to step 3.
○ If the Current Version IS LESS THAN 2.1.2 or GREATER THAN 2.1.26, go to step 5.
3. Using the “OTA Service Request” tile in Lucid Garage, update to the most current Software
version available (minimum v2.1.52). Refer to Over The Air (OTA) Flashing.
4. Check and clear DTCs. Refer to DTCs Check and Clear.
5. No further action required. Release the vehicle.
Entire Page Confidential Business Information 49 CFR part 512
TSC-K0224-015-01 ©2024 Lucid Group, Inc. Page 2
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