2004 GMC Sierra 2500 HD Reviews and Owner Comments

2004 GMC Sierra 2500 HD owners review and rate their 2004 GMC Sierra 2500 HD.

2004 GMC Sierra 2500 HD (2 Reviews)
Body, Interior & Misc.
Drive Train
Electrical & Lights
Exhaust & Emissions
Heating & Air Conditioning
Suspension & Steering
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Hello my truck runs great but the A/C / Heat control only works on HIGH!! I think I'm going to change out the control unit . How does that sound??? THANKS!! Oh also the turn signals ,when activated left/ right set the hazards off?!?! Spooky
Other than the computer and seat module issues it is a great truck.