About every 3-5 weeks the engine will accelerate by itself. The first 3 times it accelerated to 3,000 RPM, the last 4 times 4,000 RPM. So far as I can tell it does this when shifting from 1st to 2nd. I took it to the dealer and they said they could not duplicate the problem so they could not fix it. Happens in motion on city street or in parking lots. I have standard transmission so when it happens I can leave clutch in, turn off engine and restart. Problems started at about 3,400 miles. Still doing it.
2016 GMC Canyon acceleration complaints
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