GMC Canyon Reliability by YearBest & worst years, problems & recalls — NHTSA data

*COMPONENT SYSTEM FAILURE- MASTER BRAKE CYLINDER *SAFETY PUT AT RISK - AS BRAKE SYSTEM FAILURE MEANS THE BRAKES WERE NOT WORKING AS THEY SHOULD. *PROBLEM HAS BEEN CONFIRMED BY GMC AND THE DEALERSHIP AS A KNOWN ISSUE IN NEW VEHICLES. *THERE WAS NO WARNING OR ALERTS PRIOR TO THE DAY 8/23/25. ON THAT DAY WAS THE FIRST WARNING LIGHTS I SEEN. *PART ON BACKORDER FOR THE FORSEEABLE FUTURE. GIVEN THE MILEAGE AND BEING BRAND NEW AND NOT HAVING THE PART POSSIBLY FOR MORE THAN 30 DAYS I FEEL AS IF I SHOULD BE GIVEN ANOTHER VEHICLE AS I THINK IT WOULD FALL UNDER THE LEMON LAW? 2025 GMC CANYON AT4 MILES-2,417

ALREADY SUBMITTED COMPLAINT BUT NEEDED TO EDIT MILEAGE. *ORIGINAL COMPLAINT NUMBER-11683406. COMPONENT SYSTEM FAILURE-MASTER BRAKE CYLINDER. *SAFETY-PUT AT RISK AS AFTER GOING TO THE DEALERSHIP ON 8/23/25 SERVICE ADVISOR LET ME LEAVE WITH VEHICLE AND SAID IT WAS PROBALY SAFE TO DRIVE AND PROBABLY AN ELECTRICAL GLITCH. THERE WAS NO WARNING/ALERTS PRIOR TO 8/23/25. TAKING THE SERVICE ADVISORS ADVICE I DROVE IT THAT WEEKEND NOT REALIZING MY BRAKES COULD FAIL ANYTIME. TOOK BACK TO DEALERSHIP ON MONDAY 8/25/25. GMC CERTIFIED MECHANIC CONFIRMED IT WAS THE BRAKE SYSTEM CYLINDER. PART IS ON BACKORDER FOR THE FORSEEABLE FUTURE. GIVEN THE MILEAGE AND BEING BRAND NEWAND NOT HAVING THE PART POSSIBLY FOR MORE THAN 30 DAYS, I FEEL AS IF I SHOULD BE GIVEN ANOTHER VEHICLE AS I HAD PAID OFF THE ONE I AM SPEAKING OF 2 WEEKS AGO. ALSO, I THINK THIS WOULD FALL UNDER THE LEMON LAW IF THE PART GOES BEYOND 30 DAYS FROM BEING DELIVERED TO DEALERSHIP AND TRUCK BEING FIXED. MILES ON TRUCK WHEN FIRST OCCURED WAS 2371, WHEN LEFT AT DEALERSHIP ON 8/25/25, MILEAGE WAS AT 2417. HAVE PICTURES CONFIRMING MILEAGE AND ALERTS. CALLED DEALERSHIP ON 8/27/25 ASKING FOR A WORKORDER AS I WAS NOT GIVEN ONE. STATING EVERYTHING THAT HAS BEEN TALKED ABOUT WITH MY VEHICLE WITH THE SERVICE ADVISOR AND MECHANIC. I WAS TOLD FROM SOMEONE WHO CALLED ME THIS MORNING AFTER FIRST SUBMITTING MY FIRST SUBMISSION THAT I NEED THAT WORKORDER IF THINGS PROGRESS FURTHER.

The engine coolant temperature sensor has failed on my 2019 GMC Canyon. The check engine light is illuminated, the temperature gauge does not register correctly, the air conditioning has been disabled by the vehicle's computer, and the engine cooling fan continues to run after the engine is turned off. These symptoms are consistent with the vehicle entering fail-safe mode due to loss of a valid coolant temperature signal. The problem was confirmed by an independent mechanic who diagnosed a failed coolant temperature sensor. The mechanic attempted to source a replacement part through GMC but was informed the part was unavailable. The reason for the parts unavailability is unknown, though in his experience, it typically means that the manufacturer is stocking up and preparing for a recall This issue appears to be widespread across 2017–2020 GMC Canyon and Chevrolet Colorado V6 trucks based on extensive owner forum documentation. The safety concern is significant: without reliable coolant temperature monitoring, there is no assurance the engine is operating within safe thermal limits, and the driver has no warning if overheating occurs. The disabled A/C also creates a safety risk during periods of extreme heat. The vehicle has approximately 60,000 miles. The problem has been present for approximately three months and is ongoing.

Ambient air temperature sensor

Transmission shifting issues. The transmission will shift very slowly (engine revs high and vehicle lurches) when driving the truck each morning. I reported the issue to the dealership within 0ne month of purchasing the truck in 2019 and again in 2024. The dealership stated there is nothing wrong with the transmission. The transmission is now starting to slip at low/moderate speeds when accelerating. The vehicle has less than 50,000 miles.

Formal Complaint to NHTSA: 2019 GMC Canyon Transmission Issue To Whom It May Concern at the National Highway Traffic Safety Administration (NHTSA): I am writing to formally report a recurring and dangerous transmission issue in my 2019 GMC Canyon, and to request that NHTSA open an investigation into why General Motors has not issued a safety recall — despite widespread complaints and technical service bulletins. My vehicle exhibits jerking, hesitation, slipping, and hard shifting — especially during acceleration or when moving from a complete stop. These symptoms are consistent with hundreds of other consumer reports across forums, NHTSA complaints, and class-action lawsuits tied to GM’s 8L45 8-speed automatic transmission. I was quoted approximately $5,700 for a transmission repair and $8,800 for replacement. This problem is not simply an inconvenience or comfort issue. Hesitation and sudden surges in acceleration pose a legitimate safety hazard, especially when merging onto highways, pulling into traffic, or driving on slippery roads. At times, I’ve experienced delayed throttle response and unexpected lurching — which could easily result in a rear-end collision or intersection mishap. Despite the well-documented nature of this defect, GM has not recalled these transmissions — and owners are left to bear the financial burden of expensive repairs on a known design flaw. That is unacceptable. NHTSA’s mandate is to protect consumers from safety-related defects. In my view, and in the experience of many other drivers, this transmission issue meets the criteria for a recall: - It affects safe operation and control of the vehicle - It has been confirmed by internal GM service documentation - It recurs even after manufacturer-prescribed remedies - It places drivers, passengers, and others at risk Please consider this a formal request to investigate this matter and hold General Motors accountable for a recall or reimbursement program for affected consumers. Joanne Holstein

The contact owns a 2019 GMC Canyon. The contact stated that while driving at undisclosed speeds and making a right turn, the steering wheel seized. The contact continued to drive, and the steering wheel seized again. There were no warning lights illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 65,200.

The contact owns a 2019 GMC Canyon. The contact stated while driving 60 MPH, the vehicle stalled and failed to restart. There was an abnormal scratching noise detected. The check engine warning light was illuminated. The vehicle was towed to the local dealer, where it was diagnosed and determined that an unknown part had fractured inside the engine. The mechanic informed the contact that the engine needed to be replaced. The contact was informed that there was no warranty coverage on the vehicle. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was approximately 64,000. The VIN was not available.

The contact owns a 2019 GMC Canyon. The contact stated that the key failed to release from the ignition. Additionally, the key failed to turn in the ignition switch. The vehicle failed to turn on or off. There were no warning lights illuminated. The contact called the local dealer and was informed that a diagnostic test needed to be performed. The vehicle was not diagnosed or repaired. The manufacturer was contacted, and informed the contact that there was no Warranty coverage for the vehicle. The failure mileage was approximately 52,000.

The high pressure fuel pump broke twice within a 6 month period. The first time, I was traveling at 70 mph in the middle of 100 degree weather in Texas. When I took it to the shop, the mechanic mentioned that the bolt broke inside of the engine and caused the high pressure fuel pump to break and dump gasoline everywhere. It was repaired by adding a new pump and fuel line. After driving it for 5 months, the same issue happened again while driving 30 mph. My safety was put at risk since it was large amounts of gasoline that it was throwing which could have easily caused a explosion/fire. The warning message was a check engine light and the truck going into limp mode. From my research, this exact issue was a recall for the 2018 version of the truck.

All 5 tires including the spare are dry rotted, and have become extremely unsafe in wet weather conditions. Truck came with these tires and only has 27k miles with a lot of tread left.

Truck jerks and makes loud noises when going up incline when transmission is shifting and constantly shifting even at low speed.

High pressure fuel pump broke off while driving on highway causing truck to stall. Stabilitrack warning was activated and Engine Power Reduced message came on dash. Speed was rapidly reduced to 15 mph on the highway and started knocking hard. Mechanic found the pump physically broke and a bolt was sheered off inside of head.

Noticed oil on snow in driveway. Upon inspection, noted that engine oil cooler pipe is corroded-through and oil, under pressure, is leaking when engine is running and blowing back onto hot engine components. Also noted smoke from under hood/engine compartment.