General Motors trucks recalled for a software error

Laguna Hills, CA – Dec. 20, 2019 – General Motors LLC is recalling certain Chevrolet Silverado 1500, Cadillac CT6, and GMC Sierra 1500 vehicles. The Electronic Brake Control Module (EBCM) may have a software error that could disable the Electronic Stability Control (ESC) and Antilock Brake System (ABS).

The potential number of vehicles affected is estimated at 463,995.

The Defect

The affected vehicles have a software defect in the EBCM that will disable the ESC and ABS for a single ignition cycle. In situations where the ABS and ESC are disabled, the vehicle diagnostic’s telltale lamps won’t light up, leaving the driver unaware of the problem. Driving without knowledge of a defective ABS or ESC may increase the risk of a crash. In addition, the lack of warning of a defect puts the vehicles out of compliance with S5.3 of Federal Motor Vehicle Safety Standard 126 and S5.1 of Federal Motor Vehicle Safety Standard 135.

According to General Motors, an estimated one percent of the total vehicles for each model are affected.   

Timeline of Events

On November 15, 2019, General Motors’ EBCM supplier, ZF TRW, informed the company that they had found a software error while investigating a related product. On December 5, 2019, General Motors’ Safety and Field Decision Authority decided to call for a noncompliance recall.

The Solution

General Motors will provide dealers with a list of affected vehicles through GM GlobalConnect Recall Reports. General Motors dealers are expected to reflash all affected EBCMs, updating the software and correcting the problem. Moving forward, the software error has been corrected for the 2020 model year.

Because all affected vehicles are the current model and under warranty, General Motors will not have to provide reimbursements. Owners can check to see if their vehicle is being recalled by searching their VIN number at www.vinrcl.safercar.gov/vin/. In some cases, courtesy transportation may be provided to affected drivers. Dealers will be notified of the recall December 12, 2019. GM will begin notifying individual owners January 27, 2020.

For more information on this or other recalls past or present, visit MotorSafety.org.

Sean ReyesGeneral Motors trucks recalled for a software error

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