2024 GMC Canyon Reliability Report

Two problems stand out. Brake system faults trigger brake failure or ABS warnings, a stiff pedal, and a truck that will not slow properly, sometimes with a speed limit warning on the dash. Repairs include a replaced brake module, and one case at 250 miles involved the master cylinder and ABS module. Wear complaints describe warped rotors, pulsing stops, and uneven pad wear between 15,000 and 21,000 miles, with coverage denied as normal wear. Adaptive cruise also brakes hard with nothing ahead.

These reports cover unrelated problems. A sunroof shattered on the highway with nothing striking it, and a piece of exterior trim came loose. An alternator stopped charging, leaving the truck dead. One radiator hose leak echoes the coolant pattern seen under engine. The rest are design complaints: headlights work only through a small touchscreen control, the gauge cluster background is hard to read at night, a connected-services warning covers navigation, and chrome dash trim reflects glare into the side mirrors.

Sticky or erratic steering is the main concern. One rack and pinion failed at 2,200 miles, forcing the driver to pull on the wheel to finish turns on the highway. Others report a service power steering message along with reduced power and a check engine light at highway speed, and the truck jerked hard enough to nearly lose control. Dealers could not trace a steering wheel noise in turns. Several reports filed here actually describe headlight flicker, the right-turn signal glitch, or a loose heat shield.

Automatic braking engages with no real threat ahead. Cars in the next lane or oncoming traffic on two-lane roads set it off, and the truck brakes hard enough to throw the driver forward. One highway event dropped speed by about half and nearly caused a pileup behind the truck. Dealers can reproduce it, but camera replacements have not cured it. In another case the system did not work at all, and the dealer said repair must wait for a software update with no date.

Serious drivetrain failures appear in a small number of reports. An engine began idling rough at 10,000 miles, then would not restart. Teardown found a failed exhaust valve, and a replacement engine was ordered under warranty. No warning or earlier symptoms came first. A transmission valve body problem causes sudden downshifts and sharp slowing without warning, raising the risk of being rear-ended. That truck sat for a month waiting on a back-ordered part.

Adaptive cruise brakes hard with no traffic ahead, cutting speed by 10 to 20 mph at highway speeds before speeding back up. That creates a rear-end risk from traffic behind. A separate report describes idle staying near 1,000 rpm after a service visit, so the truck keeps creeping forward and needs heavy brake pressure to stop. A software update meant to address it would not install. With only two reports here, the false braking matches the larger pattern under forward collision avoidance.

The roof panel dents or caves inward with little force. In one case the dealer found the truck was built without roof braces, discovered at 4,000 miles, and braces were ordered. In another, a car wash air dryer made the roof pop in and out until the sheet metal dented, and the roof can be pushed in by hand. Owners worry about protection in a rollover. Only two reports exist, but both describe the same weak roof.