2023 GMC Canyon

The contact owns a 2023 GMC Canyon. The contact stated while driving at an undisclosed speed, the vehicle failed to accelerate as intended while depressing the accelerator pedal, and the automatic emergency braking (AEB) unexpectedly engaged. The message "Reduce Acceleration Proceed with Caution”, and the check engine warning light was illuminated. The vehicle was turned off and restarted and returned to normal functionality. The contact stated that the vehicle was nearly rear-ended. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 24V133000 (ELECTRICAL SYSTEM, FORWARD COLLISION AVOIDANCE); however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 9,300.

The upper radiator hose on some huge percentage of these trucks fail (mine has failed at just over 37K miles). You can check the Colorado Chevy and GMC Canyon forums, youtube, Facebook, etc., et al, and find plenty of instances where this has failed. As this is the cooling system, it can cause the engine to overheat and potentially ruin the engine. The flaw seems to be an engineering issue with the rubber seal they use (instead of a high quality o-ring) to seal the upper hose to the radiator. Additionally, since this can cause engine failure it should be addressed immediately. Instead, my local Chevy dealer, since its not a recall item, said they could schedule a time next week for me to LEAVE the truck and that I am responsible for the repair. This is extremely unfair to the consumer who depends on these vehicles. This should absolutely be a recall item. You can find 1000's of examples online and if you can pull GM repair data, I'm sure you'll find 1000's more.

Upper radiator hose is leaking

Noticed a coolant leak on drivers side and took to dealership was told was the upper radiator hose but was unable to make repairs due to national backorder and only suggestion was to drive until parts come in and keep a check on the coolant level, My truck only has 28,708 miles and shouldn't have to keep an eye on coolant level I feel that is very unsafe

The upper radiator hose on a significant number of these trucks is failing prematurely. In my case, the failure occurred at just over 35,000 miles. Numerous reports on owner forums (such as the Colorado Chevy / GMC Canyon forum), YouTube, and other platforms document the same issue, indicating this is not an isolated incident but a widespread defect. Because this hose is part of the cooling system, its failure can quickly lead to engine overheating and potentially catastrophic engine damage. The root cause appears to be an engineering flaw in the sealing method: GM uses a rubber seal instead of a durable, high-quality o‑ring to connect the upper hose to the radiator. Despite the seriousness of this defect, my local GMC dealer informed me that—since it is not currently a recall item—they could only schedule service for the following week, requiring me to leave the truck with them for 7–10 days before repairs would be completed. This is unreasonable for consumers who rely on these vehicles daily. Given the safety implications and the potential for engine failure, this issue warrants immediate attention. It should be classified as a recall item. Thousands of examples are already documented online, and GM’s own repair data would likely reveal thousands more instances of this same failure.

The whole radio screen and dashboard have gone completely black and will not come on. Can not see anything. Took it to GMC dealership mechanic. Mechanic did diagnostic and said he didnt know what was wrong with it. Update did not work.

While driving at 70–75 mph on an interstate, my vehicle suddenly displayed a “Brake Failure” warning and limited speed to 62 mph. Power steering failed completely, and braking became ineffective despite hard pedal pressure. Multiple warnings followed: ABS, engine, and others. I was in heavy traffic with vehicles at full speed. Loss of braking and steering control forced me to coast across lanes to the shoulder, narrowly avoiding collision. My safety and that of others was at extreme risk. After stopping, I turned the vehicle off for ~30 seconds. Upon restart, all systems returned to normal—no warnings or issues. This indicates a transient software malfunction, not mechanical failure. No prior warnings or symptoms occurred. The problem has not been reproduced or confirmed by a dealer/service center. I have not scanned or inspected the vehicle. It has not been examined by the manufacturer, police, or insurance. The vehicle is in my possession and available for inspection upon request.

While driving at 70–75 mph on an interstate, my vehicle suddenly displayed a “Brake Failure” warning and limited speed to 62 mph. Power steering failed completely, and braking became ineffective despite hard pedal pressure. Multiple warnings followed: ABS, engine, and others. I was in heavy traffic with vehicles at full speed. Loss of braking and steering control forced me to coast across lanes to the shoulder, narrowly avoiding collision. My safety and that of others was at extreme risk. After stopping, I turned the vehicle off for ~30 seconds. Upon restart, all systems returned to normal—no warnings or issues. This indicates a transient software malfunction, not mechanical failure. No prior warnings or symptoms occurred. The problem has not been reproduced or confirmed by a dealer/service center. I have not scanned or inspected the vehicle. It has not been examined by the manufacturer, police, or insurance. The vehicle is in my possession and available for inspection upon request.

Upper Radiator hose O ring defect Causing all 2023+ Chevorlet Colorados and 2023+ GMC to leak coolant in a brand new truck

Top radiator hose is leaking coolant. Radiator hose O ring appears to be faulty.

The contact owns a 2023 GMC Canyon. The contact stated that while driving 20 MPH, the vehicle came to an abrupt stop without warning. The contact waited for several minutes before resuming normal driving. The contact stated that the failure was caused by the rear brakes. The vehicle was not diagnosed or repaired. Neither the manufacturer nor the dealer was notified of the failure. The failure mileage was 14,129.

Vehicle lurches forward extremely strong when almost stopped, shifting from 2nd to 1st. Common issue with all of these trucks with the 8L80 transmission. Also - this transmission slams into 2nd from 1st when first starting out under light acelleration or drifting down hill.

The pre-collision warning and the lane keep assist are disabled while driving frequently. It does this on its own. I have had into the shop one other time for the same thing. It’s happening more frequently now. Current mileage is 25,153. Also the personal settings on the dashboard reset on its own every five or so key cycles. Obviously there’s some kind of software problem.

Upper radiator hose gasket leaks at connection point to radiator and no gasket replacement part. GMC forces you to buy entire hose

Since I purchased the vehicle it’s had the issue of it braking on its own. I brought this up to GMC many times. At the beginning they had me try to duplicate it with them, which I thought would be unsafe. They only acknowledged the problem and attempted repairs after I contacted GMC directly. The issue with the crash alerts while driving always stayed, even though there was nothing in front of me. Just recently it started braking on its own again in traffic. This has caused bodily and property damage, luckily nothing grave. I do not feel safe in the vehicle and gave gmc many attempts at fixing such a serious issue. I want them to tow replace the vehicle and provide a loaner. Please contact me if you need more details. [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I am experiencing two safety issues with my Canyon 1) Forward collision alert system is triggered unnecessarily (e.g., when there isn't a car in front of me, when the car in front is far away and not posing a risk). I took it to GMC a few months back since there was a previous recall for this system and they said they stated it was fixed. It is not fixed. I turned off the automatic braking tied to the forward collision alert because it has previously braked automatically in a dangerous manner. 2) Digital gauge cluster / speedometer is black / blank upon startup about 5% of the time. Since there is no analog speedometer, this means I am driving without knowing my speed. This is very dangerous. I have tried disconnecting my battery and resetting the electronic system but this issue still persists sometimes.

Our 2023 Canyon AT4 we bought on [XXX] had the same problem as this current VIN number of the 2023 Canyon ( Covert GMC in Bee Caves tx bought back the first 2023 Canyon due to this same exact transmission problem. The vehicle I’m complaining about that was replaced by Covert GMC in Bee Caves Texas on [XXX] still has a unsafe issue with the transmission. I’m [XXX] and I am [XXX]. Almost every time I pull into a [XXX] parking spot, from right or left approach, this vehicle lunges as I get close to the sign post. it occurs at red lights occasionally. This current replacement vehicle has been in for warranty several time .. only to the Same excuse that they can’t duplicate. Common denials Don not fix the safety issue with this truck. It’s dangerous INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

On 12/2/2024 my vehicle abruptly alerted and auto braked while drive <25mph on residential street while attempting to drive in between two parked cars. Plenty of room but system thought there was going to be a crash. Another vehicle was traveling behind me and also had to stop fast in order not to hit me because of the emergency braking. Truck almost came to a full stop but brakes released and was able to continue driving. This is after I had a mandatory software update that was supposed to improve the over aggressive auto/emergency braking feature. I have since had to disable the braking portion of the system and leave it on audio alert only. Not functioning as designed and unsafe.

Subject: Urgent Safety Concern Regarding 2023 GMC Canyon Fuel Pump Module Failure I am writing to express my concerns regarding a significant safety issue I experienced with my 2023 GMC Canyon, which has only 3,000 miles on the odometer. On November 12, 2024, while traveling southbound on Interstate 75 in Florida, my vehicle unexpectedly lost all power. All electronics, including the dashboard and display screens, shut off, and the engine stalled. I was forced to coast to a stop on the shoulder, directly on the bridge section of I-75 over U.S. 301. With less than 12 inches of clearance between my driver’s side and passing traffic, this situation posed a severe risk to my safety. To make matters worse, the tow truck driver was unable to safely and properly secure my vehicle due to the danger presented by the high-speed traffic. My vehicle has now been at the GMC dealership for seven days, and I have been informed that the issue was caused by a faulty fuel pump module. I believe this represents a critical safety defect that warrants immediate attention and possibly a recall. Upon further research, I have found similar reports of fuel pump module failures in online forums, indicating that this may be a widespread issue affecting other owners across the country. In addition, when the tow truck dropped my vehicle off at the GMC dealership, after reading the engine codes the dealership found 18 active engine codes. I feel as if this is a possible known issue and I should have been informed when purchasing the vehicle. I kindly request your assistance in addressing this matter. I urge GMC to investigate the extent of this defect and take appropriate action to ensure the safety of all affected vehicles and their drivers. Thank you for your prompt attention to this urgent matter. Please let me know how GMC plans to proceed. I am available to provide additional information or documentation if needed.

I use the right turn signal to make a right turn at an intersection. I proceed with the turn and begin to accelerate out of the turn, as the steering wheel unturns the right turn signal is supposed to cancel as the steering wheel straightens out. Instead of cancelling the signal, straightening the wheel when accelerating out of a right turn cause the left turn signal to be triggered and in gives three signal indications for a left turn. These left turn indications are uncommanded by the driver. The issue is repeatable. It presents a serious safety concern because other drivers are being told by the truck that you intend to do something which you are not at all intending to do. Another driver could rely on these uncommand left turn indications and pull in front of the truck and cause an accident. This issue has been raised with two dealerships, one dealership replaced the turn signal triggering and cancelling mechanism in the steering column. Both dealers ultimately told me that the issue was "software" relating and that it could not be fixed. One of the dealership claimed to have "corrected the issue with a software update." That assertion was a lie, the issue remained unchanged. This issue is a serious safety issue. The truck has a defect that puts me, my family, and other drivers on the road at risk. So far, GMC has failed to remedy the "software" issue and merely returns to me a defective vehicle.