Vehicle Speed Control Related Problems of the 2023 GMC Canyon

Table 1 shows one common vehicle speed control related problems of the 2023 GMC Canyon.

Table 1. Vehicle Speed Control related problems of GMC Canyon

Problem Category Number of Problems
Vehicle Speed Control problems
3

Vehicle Speed Control problem #1

While I was driving on the highway at 85 mph the truck went into limp mode causing the truck to slow down at a dangerous distance. My body was forced forward causing me to lose a portion of control and causing other drivers behind me to slam on their breaks. I pulled over and turned it off for a few minutes then resumed my travel. About 30 minutes later it happened again at 80 mph the exact same way. After taking it to the dealership they said it was a faulty solenoid in the valve body.

Vehicle Speed Control problem #2

While driving at 70–75 mph on an interstate, my vehicle suddenly displayed a “brake failure” warning and limited speed to 62 mph. Power steering failed completely, and braking became ineffective despite hard pedal pressure. Multiple warnings followed: abs, engine, and others. I was in heavy traffic with vehicles at full speed. Loss of braking and steering control forced me to coast across lanes to the shoulder, narrowly avoiding collision. My safety and that of others was at extreme risk. After stopping, I turned the vehicle off for ~30 seconds. Upon restart, all systems returned to normal—no warnings or issues. This indicates a transient software malfunction, not mechanical failure. No prior warnings or symptoms occurred. The problem has not been reproduced or confirmed by a dealer/service center. I have not scanned or inspected the vehicle. It has not been examined by the manufacturer, police, or insurance. The vehicle is in my possession and available for inspection upon request.


Vehicle Speed Control related problems in other GMC Canyon model year vehicles:



☘ Canyon Service Bulletins
⚑ Canyon Safety Recalls
☤ Canyon Defect Investigations