FMVSS Noncompliance Recall N202305070 Warning Lamp May Not Indicate ABS Malfunction – US Only – 2019-2020 Chevrolet 4500HD, 5500HD, & 6500HD Medium Duty Trucks

General Motors is recalling certain 2019-2020 Chevrolet 4500HD, 5500HD,

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May 29, 2020 NHTSA CAMPAIGN NUMBER: 20V319000

ABS Malfunction Indicator May Not Light/FMVSS 108

If a driver is unaware that the ABS system is malfunctioning, there may be an increased risk of a crash.

NHTSA Campaign Number: 20V319

Manufacturer General Motors LLC


Potential Number of Units Affected 12,200


General Motors is recalling certain 2019-2020 Chevrolet 4500HD, 5500HD, and 6500HD Medium Duty trucks. If the vehicle’s body control module (BCM) loses communication with the vehicle’s electronic brake control module (EBCM), the EBCM software programming may not illuminate the vehicle’s ABS malfunction indicator light (MIL). As such, these vehicles fail to comply with Federal Motor Vehicle Safety Standard (FMVSS) Number 105, “Hydraulic and Electric Brake Systems.”


GM will notify owners, and dealers will update the software calibration for the body control module (BCM). This recall is expected to begin July 13, 2020. Owners may contact Chevrolet customer service at 1-800-222-1020. GM’s number for this recall is N202305070.


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

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