One problem related to engine cooling system has been reported for the 2007 GMC Canyon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 GMC Canyon based on all problems reported for the 2007 Canyon.
Over fused dash wiring, causing connectors to melt and resistors to blow in a/c and heat fan control system on a truck with only 10,000 miles ! causing a source for fire and toxic gas in cabin! this required a connector and a resistor to be replaced, at a cost of $306. 13, but GMC did not lower the fused rating in truck.