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Silverado, Sierra and CT6 can lose anti-lock brakes quietly

NHTSA campaign 19V889000 · Reported 2019-12-12 · General Motors LLC

high How serious is it? About this label

Serious — you could lose two major safety systems with no warning light at all, which raises crash risk; the notice does not tell owners to stop driving, but this one is worth booking right away.

What's wrong, in plain English

A software error in the brake control computer can shut off your anti-lock brakes — the system that keeps wheels from locking up in a hard stop — and stability control, which helps keep the vehicle from sliding in a turn. Normally a dash warning light would tell you. With this fault, the lights stay off, so you could be driving without either system and never know. A dealer reprograms the computer at no cost.

What you should do

1. Check your VIN at nhtsa.gov/recalls to see if your vehicle is covered.
2. Call your dealer and reference GM recall N192268090 (Chevrolet 1-800-222-1020, Cadillac 1-800-333-4223, GMC 1-888-988-7267).
3. Have the brake module reprogrammed — it costs you nothing.

Affected vehicles (3)

2019 Cadillac CT6
2019 Chevrolet Silverado 1500
2019 GMC Sierra 1500

Who to contact

Cadillac — official Cadillac recall lookup

Customer service: 1-800-458-8006

Chevrolet — official Chevrolet recall lookup

Customer service: 1-800-222-1020

GMC — official GMC recall lookup

Customer service: 1-800-462-8782

Any franchised dealer for the brand can do the repair. Phone numbers are taken from manufacturer sites and recent NHTSA notices; if one has changed, the number in your own recall letter is the one to use.

The bigger picture

Can Cadillac brake recalls affect stopping power and warning lights? · all 6 Cadillac recalls in this area
Chevrolet brake recalls: fire risk, software faults and failing calipers · all 17 Chevrolet recalls in this area
GMC brake recalls: why braking gets weaker or warning lights fail · all 11 GMC recalls in this area

Official notice

Component: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT
Summary: General Motors LLC (GM) is recalling certain 2019 Chevrolet Silverado 1500, Cadillac CT6, and GMC Sierra 1500 vehicles. Due to an Electronic Brake Control Module (EBCM) software error, the vehicle's Electronic Stability Control (ESC) and Antilock Brake System (ABS) may become disabled. Furthermore, if this specific error occurs, the vehicle's diagnostics will not illuminate the instrument cluster ESC and ABS malfunction warning lights. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 126, "Electronic Stability Control" and 135, "Light Vehicle Brake Systems."
Safety risk: If the driver operates the vehicle unaware that ESC and ABS are not functioning, there is an increased risk of a crash.
Remedy: GM will notify owners, and dealers will reprogram the EBCM, free of charge. The recall began February 4, 2020. Owners may contact Chevrolet customer service at 1-800-222-1020, Cadillac customer service at 1-800-333-4223, or GMC customer service at 1-888-988-7267. GM's number for this recall is N192268090.

Verify your specific vehicle by VIN at nhtsa.gov. Recall repairs are free of charge by law.