Two problems related to battery have been reported for the 2004 GMC Sierra 2500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 GMC Sierra 2500 based on all problems reported for the 2004 Sierra 2500.
Speedometer registers 0-70mph when vehicle sitting at dead stop. Registers erratic when vehicle in motion. Sometimes reads correctly, other times completely wrong. Have disconnected battery to reset speed sensor. Nothing works.
The contact owns a 2004 GMC Sierra 2500. The contact was warming up his vehicle with a portable compressor hooked up to the auxiliary power in the center of the dashboard to inflate a tire. He noticed smoke near the windshield on the driver's side. The contact unplugged the compressor, shut off the vehicle, opened the hood, and disconnected the battery. The front of the vehicle, underneath the dashboard and the cabin were engulfed in flames. The fire department extinguished the fire. There were no injuries. A police report was filed. The current and failure mileages were 63,000.