2023 GMC Canyon Reliability Report

Blind spot monitoring lights up with no car nearby and sometimes misses vehicles that are there, mostly on the passenger side and mostly at night. Drivers find the false alerts distracting and lose trust in the system. Lane keep assist and pre-collision warning also switch themselves off more often over time, and personal dashboard settings reset. Dealers often cannot reproduce the fault, and a window switch replacement has not cured it.

Power steering and brake assist cut out at once, with brake failure, ABS, and engine warnings, sometimes at 70 to 75 mph on the interstate. Speed is limited to 62 mph and the pedal feels ineffective, which creates a serious loss-of-control risk. Turning the truck off and restarting it restores normal function. Two of the three reports share identical text. Another links the failures to a remote electrical update and earlier battery problems.

The roof panel pops, crackles, and dents under the air blowers of automatic car washes. Dealer repairs have not held, and one repeat repair stalled because the part was unavailable. A separate problem involves the factory sunroof gurgling above 25 mph after rain or washing, as water collects in the drain gutter. Clearing the drain lines has not solved it. Neither problem is described as a crash or loss-of-control risk.

The truck brakes on its own in traffic, including an abrupt stop at 20 mph with no warning. One report links this self-braking to an injury and property damage after repeated dealer repair attempts. A separate failure involves the brake master cylinder at about 2,000 miles, with the service engine and brake assist lights on and the dealer saying the truck should not be driven until a replacement part arrived.

The truck lurches forward just before a stop, as if downshifting from second to first and adding throttle. It happens when parking or at red lights, and drivers report nearly hitting garage walls and other cars. Shifts from first to second can also slam under light throttle. The problem is intermittent and shows no warning light, and dealers often cannot duplicate it. One owner reports a buyback, with the replacement truck showing the same behavior.

The left turn signal flashes three times on its own as the wheel straightens after a right turn, signaling a move the driver never intended. The fault repeats reliably. A separate report describes the automatic headlights shutting off in fog and the touchscreen headlight control failing to turn them back on, leaving only daytime running lights. Both problems affect how other drivers see and read the truck.

The backup camera stops working after over-the-air software updates damage the camera control module, and replacement parts take months. Another report describes the defroster failing to clear the windshield in cold weather, with ice damaging the wipers at about 3,000 miles. No warning lights accompany either problem. With only two reports, no broader pattern is clear.