2004 Chevrolet Silverado 2500 electrical system problems

105 owner complaints filed with NHTSA name the electrical system on the 2004 Chevrolet Silverado 2500 — 29% of all complaints for this model year.

105

Electrical System complaints

29%

share of all complaints

67,400 mi

median reported incident mileage

0 / 6

crash / fire reports

What owners report

“Check engine light came on and "low engine power" flashed where the odometer is. This caused the rpm's not to go over 2800. Code reader claims o2 sensors or throttle control module or catalytic convertor issues. We discovered it was none of the above. To fix problem change 3 relays located under…”
filed Dec 29, 2018
“Many of the vehicles in this family suffer from random electrical shorts and or poor electrical grounding relating to the drive by wire throttle actuator. The result is that the vehicle will go into 'reduced engine power' mode randomly. In this mode the vehicle will idle but not accelerate or…”
filed Feb 11, 2018

Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.

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