One problem related to blind spot detection has been reported for the 2021 GMC Canyon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2021 GMC Canyon based on all problems reported for the 2021 Canyon.
The rear camera and wire harness for the rear backup camera became corroded and stopped working months ago. This is vital technology that our children have grown up with to ensure the safety of backing up in case something is behind the vehicle including young children, toys, equipment or someone simply walking by your driveway while you're backing up. The service manager at billion GMC in sioux falls, sd (dan dunnagan) said they are replacing tons of the rear cameras due to corrosion, which might be caused by water getting into the system or faulty parts and faulty wiring from the product manufacturer. This is certainly a safety issue. I had it repaired at a cost of $591. 84 for the rear camera and wire harness plus labor. This issue on GMC Canyon and sierra 1500 pickups should be investigated as the rear camera is a vital piece of safety equipment and if a large number of these are faulty, subject to corrosion or poor manufacturing, it should be brought forward to protect consumers.