Transmission Failure Problems of GMC Canyon

The transmission causes dangerous driving conditions. I have the same complaint as several others have reported. The transmission fails to downshift at lower speeds causing the hesitation when acceleration is needed. Pressing down further on the accelerator will lunge forward possible into crowed road way.

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2/12/2017 7:30am stoped @ 4 way stop, started across transmission went into neutral, left me stuck in road, could not get transmission to engage in drive or reverse,had to push out of road, tried several min to engage transmission failed, called aaa to toe back to dealer. Dealer kept 2 1/2 days said could not find a problem.

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The contact owns a 2016 GMC Canyon. While driving approximately 10 to 40 mph, the vehicle shook uncontrollably without warning. The dealer diagnosed the vehicle as having transmission failure. The manufacturer was notified. The vehicle was not repaired. The manufacturer issued a letter related to the issue (pip 5342a, dated 12/21/2015). The approximate failure mileage was 250.

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Truck transmission causes dangerous driving conditions I have same complaint as several others in the NHTSA customer complaint section. Basically the transmission fails to downshift at lower speeds causing the vehicle to hesitate when acceleration is needed until it downshifts appropriately. Pressing down hard on the accelerator will result in a downshift, but this is a potentially dangerous maneuver in crowed road conditions.

I have same complaint as several others in the NHTSA customer complaint section. Basically the transmission fails to downshift at lower speeds causing the vehicle to hesitate when acceleration is needed until it downshifts appropriately. Pressing down hard on the accelerator will result in a downshift, but this is a potentially dangerous maneuver in crowed road conditions. I have also gone to manual transmission mode but this is also potentially dangerous in crowded conditions and certainly inconvenient. Seems the volume of this complaint warrants a GMC response.

Automatic transmission failure where overdrive and 3rd gear ceased to function. 2nd, 1st and reverse remained operational. Dealer diagnosed as a failed sprag clutch. Cost to repair was $1,925. 56. Gm has known about this problem since it issued a technical service bulletin (TSB) #3931 on September 28, 2006, (NHTSA reference #10021018). There have been numerous complaints pertaining to this mechanical design defect ever since without notice or remedy offered to vehicle owners.

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