2003 Chevrolet Express 1500 Electrical system Problems
- Complaints
- 2about this part
- Share
- 11%of 18 total for the year
- Median mileage
- 40,270miles
- 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 Express 1500, 11% of the 18 complaints for this model year. Where a mileage was given, the median is 40,270 miles. 2 a fire, according to the filers.
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.
“At 4:30 a.m. On the morning of feb 13 2008 was awoke to flames flickering on bedroom wall it was my 2003 regency conversion van going up in smoke no apparent reason but it did start in the fuse box area maybe the same issue as the horn problem the week before had the same problem of horn going off in the middle of the night but there was no fire at that time.”
NHTSA complaint #10219006, filed 2008-02, 40,270 miles“The contact called regarding a 2003 Chevrolet EXPRESS 1500. The contact is the physical damage inspector for an insurance company. He stated that the vehicle was parked when the horn began to sound. He stated that the horn is also used as an intruder alarm. Shortly after, flames began to rise from the hood. The vehicle was taken to the dealer and they stated that it was not a warranty related failure. The dealer also stated that the wire that runs from the horn relay to the actual horn in the steering wheel column super heated, which caused the fire. A police report was filed. …”
NHTSA complaint #10199531, filed 2007-08Related service bulletins
- 11006621Aug 26, 2024Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which…
- 11002312Jun 6, 2024This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414…
- 10252735Mar 28, 2024This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.
- 10244214Sep 21, 2023This informational bulletin provides information for the IPC odometer programming method quick reference guide.
- 10230605Jan 6, 2023This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
- 10225615Oct 19, 2022This service bulletin provides information on Module Harvesting.
- 10210817Apr 21, 2022This technical bulletin provides a procedure to repair a possible wiring harness repair if damaged by the parking brake, brake booster mount or brake pedal bolt.
- 10190320Oct 1, 2017IPC Odometer Programming Method Quick Reference Guide
- 10115913Oct 10, 2016All applicable vehicle applications are without Electronic Accessory Control System option. This communication is to return unsold inventory because some product sold in 2016 may…
- 10084018Oct 10, 2016All applicable vehicle applications are without electronic accessory control system option. This communication is to return unsold inventory because some product sold in 2016 may…
Electrical system: other model years
Other parts of the 2003 Chevrolet Express 1500
9 complaintsSeat belts
2 complaintsBody and structure
2 complaintsEngine cooling
1 complaintsLatches, locks and linkages
1 complaintsSeats
1 complaintsSteering
1 complaints
← All problems reported for the 2003 Chevrolet Express 1500
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