One problem related to headlights has been reported for the 2012 GMC Canyon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 GMC Canyon based on all problems reported for the 2012 Canyon.
While driving, the security light came on. Engine power was reduced or completely eliminated. Headlights went out every thing reset in about thirty seconds. Power loss could be deadly if entering a highway from a side street if there is oncoming traffic.