Adaptive Cruise Control Problems of GMC Canyon

While driving a two lane road the adaptive cruise control detects oncoming traffic and improperly slows down or breaks unnecessarily. Most of the time the vehicle breaks so hard it will jolts me forward in my seat. I fear another car will be behind me and this will cause an accident. I have had my vehicle in the shop two (2) times to repair the issue. The dealership/service department has been able to replicate the issue by having one of their technicians drive the vehicle. The front camera has been replaced twice and I have been told every time they plug a new camera in the trucks interior and exterior lights "go crazy and flash". Gm's response to this issue is "set the gap to mid" or simply "shut it off". They refuse to see this as an issue. Doing my research I found that the 2023 GMC Canyons have been recalled due to the same issue. I have brought this information to the sales department. However due to not being able to find this on general motors website I have been told by the dealership/service department, and owner of the dealership that the information I found on NHTSA is insufficient and they can not go off this information.

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On [xxx] I took a trip with family through ohio from pennsylvania. While truck was in adaptive cruise control on highway, phantom braking occurred where truck slowed down from 70mph to about 60mph 5 times. No objects or vehicles in front of truck or around truck during the braking. The weather was mostly clear overcast at times with no rain or snow. Concerned if vehicles were behind me during the breaking causing an accident. It was abrupt completely out of the blue when it happened. Took truck into service on 1/8/25 for oil change and braking issue, dealership states there’s no service bulletin for issue. I have not used adaptive cruise control since. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Adaptive cruise control has applied brakes multiple times while cruise has been sent at speeds ranging from 55-75 mph. Vehicle aggressively slowed down 10-20 mph then picked up speed. No vehicles in sight ahead of vehicle, aggressively applied braking without warning. Aggressive braking could cause traffic behind vehicle to crash into me while driving at high speeds. Multiple other reports of this happening to other 2023-2024 GMC Canyon owners based on comments on facebook and reddit with acknowledgement from the manufacturer that this is a know issue they currently are trying to resolve. Issue not isolated to this vehicle. Vehicle has not been inspected by manufacturer or problem been reproduced dealership. Vehicle goes in for service next week, meanwhile cruise is not being used as it is a safety hazard. No collision warning or any other warnings experienced with this issue. Issue first happened on day 1 of vehicle ownership and has happened 2-3 other times with one instance of it braking and accelerating 3 times over a 2-3 mile stretch of highway with cruise set at 75mph with vehicle slowing down to around 55mph before resuming set speed.

I was driving with my cruise control set at 77 mph in the fast lane of a four-lane highway. There was no one in front of me for more than 3/4 of a mile. A car in the lane to my right apparently triggered the automatic breaking system to the point it slammed on my brakes, pushed me into the steering wheel, and slowed me all the way to 38 mph in the fast lane of the freeway. The result of this unrequested breaking caused four cars behind me to almost rear end me and pile up. The second event was going down the freeway with the cruise control set at 65 and nobody around me and the car again slammed the brakes on for no apparent reason. At this point I’m afraid to drive the car. I have zero confidence in this vehicle letting me operate the vehicle. I need help.

The contact owns a 2023 GMC Canyon. The contact stated while driving 20 mph, while making a right turn, the left turn signal activated and blinked three times. The contact stated that the adaptive cruise control intermittently activated the brakes independently, and the forward collision avoidance system activated and forced the vehicle to stop abruptly, almost causing a crash. The forward collision avoidance warning light was illuminated. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure and informed the contact that the parts to repair the vehicle were on backorder. The failure mileage was approximately 2,251.

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This is the 2nd time this has happened. The 1st time making a left onto route 23 from route 296 in windham NY. Almost got t-boned. Stalled wouldn't start. Waited 5 minutes and it started again. Ran rough then died again thankfully in a more opportune spot. My car randomly & without warning loses all power and electric and shuts down. The 1st time I had it towed to matthews GMC (where I purchased 4 pick ups) and they stated it was a nox sensor and repaired it. Saturday this happened again while driving at 55 mph and stalled on a blind curve (very scary). I left a complaint on this website to hopefully prevent a fatality. I thought I would recieve a response from you the ntsb but didn't. I went online and noticed there a a number of folks that had the same problem. Do you wait for fatalities before action is taken??.

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