One problem related to starter has been reported for the 2004 GMC Canyon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 GMC Canyon based on all problems reported for the 2004 Canyon.
Climate control fan only works in position 4. Took vehicle to dealership. They said it was a resistor on circuit board. They swapped it out. Less than six months later same thing. Took it in and didn't have them replace it. They did however disconnect connector to motor, it was burnt and slightly melted. Why are they not investigating this. I assume that the condensing camber doesn't drain properly, thus impinging on squirrel cage blower, thus higher starter amps required and that is how you overcurrent this connector and resistor.