Automatic Emergency Braking Problems of GMC Sierra 1500 - part 2

GMC Sierra 1500 owners have reported 40 problems related to automatic emergency braking (under the forward collision avoidance category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of GMC Sierra 1500 based on all problems reported for the Sierra 1500.

36 Automatic Emergency Braking problem of the 2018 GMC Sierra 1500

Failure Date: 12/03/2021

Driver assist-lane keeping assist-forward collision warning-automatic emergency breaking life threatening when system fails and is intermittent . Vehicle has been said to be dangerous to drive by gm tech/can cause life threatening conditions. Fault has been confirmed by dealership. Warning lamp> "service driver assist system" Friday 3 December 2021 at approximately 21340 miles.

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37 Automatic Emergency Braking problem of the 2014 GMC Sierra 1500

Failure Date: 11/23/2021

I was driving my truck when the brake assist light came on. When applied the brakes they started pulsing and grabbing. I took it in for service and was told that the electronic brake control module needed to be replaced and the brake fluid flushed.

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38 Automatic Emergency Braking problem of the 2020 GMC Sierra 1500

Failure Date: 09/24/2021

Own a 2020 GMC sierra at4 with 13k miles and I owned the truck for 1 year. All of a sudden my vehicle started receiving multiple warning messages. Electronic stability control, antilock braking system, ecm, reduced engine power, etc. I see there was a recall for 2019 GMC sierra's for the same issues. Why isn't 2020 GMC sierra's not also part of that recall ? it is ridiculous that a brand new truck has these types of serious issues affecting so many vehicles. Why is GMC allowed to continue to sell later model trucks after the 2019 recall with the exact same esc and anti-lock braking system problems ?.

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39 Automatic Emergency Braking problem of the 2019 GMC Sierra 1500

Failure Date: 04/26/2021

I received a brake control module warning alert. The alert indicated my abs system was subject to failure and required a software patch. I see that the exact issue I had was subject to a recall of 463,000 similar year and model vehicles. Despite the identical issue, it being related to a failure of their software the GMC website and my dealer refused to cover my vehicle claiming it was not part of the recall.

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40 Automatic Emergency Braking problem of the 2020 GMC Sierra 1500

Failure Date: 03/09/2021

2020 GMC sierra slt VIN:1gtu9ded5lz310106 15,700 miles. Braking system failure at about 45mph on highway 78 in loganville, GA aproching an intersection with red light, vehicle seemed to loose all power braking. I stood with all I could on the pedal, and turned to avoid rear ending stopped vehicles, running into middle of the intersection before it stopped; no accident ! dealer is replacing master cylinder and booster braking system, along with computer system ugrade. My concern is the dealership and NHTSA is aware of this issue, yet no cease and desist driving directive has been issued !.


Other Common Forward Collision Avoidance related problems of GMC Sierra 1500



Sierra 1500 Service Bulletins
Sierra 1500 Safety Recalls
Sierra 1500 Defect Investigations