2003 Chevrolet C4500 Electrical system Problems
- Complaints
- 2about this part
- Share
- 40%of 5 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the electrical system of the 2003 Chevrolet C4500, 40% of the 5 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“While driving 60 MPH vehicle stalled. Consumer was unable to restart vehicle, and had it towed to the dealer for inspection. Mechanic determined that the temperature sensor needed to be replaced, and replaced it. However, the problem recurred, and vehicle was taken back to the dealer . Mechanic replaced the computer sensor, and the problem recurred again.”
NHTSA complaint #10091633, filed 2004-09“The 2003 Chevrolet kodiak c-4500 crew cab truck comes standard with a factory installed exhaust brake. When the brake is engaged, no brake lights come on at the rear of the vehicle. This size truck is commonly used to haul rv trailers, fifth wheel trailers and horse trailers. Since the brake lights are not activated on the truck, neither are they activated on the rear of the trailer. When activating the exhaust brake while going down a steep hill, the vehicle and trailer can be slowing down, but not give any indication to a following vehicle. This is a very dangerous situation. …”
NHTSA complaint #10144094, filed 2005-11Related service bulletins
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- 10083484Apr 19, 2016This preliminary information communication provides information to help the dealership technicians perform a parasitic drain test for the onstar module. When performing battery…
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- 10083900Apr 8, 2016This preliminary information communication advises the technician, if unable to place an onstar call in the ignition on mode after the onstar canada upgrade to contact the gm…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2006 | 1 | 17% |
| 2003 | 2 | 40% |
Other parts of the 2003 Chevrolet C4500
← All problems reported for the 2003 Chevrolet C4500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology