2019 GMC CanyonRecalls, problems, MPG & safety

“The contact owns a 2019 GMC Canyon. The contact stated that while driving at various speeds, there was an abnormal sound coming from underneath the rear of the vehicle. The contact stated that the vehicle was taken to a local dealer, where it was determined that both rear tires needed to be replaced. The vehicle was taken to a local Goodyear tire for a second opinion, where it was diagnosed and determined that the rear carriage bearings were failing. The vehicle was taken back to the same local dealer, where the shim kit, bearings, spacer, seals, and lubricants were replaced; however, approximately 3 years later, the failure reoccurred. After further investigation, the contact associated the failure with TSB: 20-NA-034. The manufacturer was made aware of the failure by telephone, and a case was filed. The failure mileage was approximately 20,164.”

“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…”

“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.”