2003 Chevrolet Suburban 2500 Electrical system Problems
- Complaints
- 3about this part
- Share
- 14%of 21 total for the year
- Median mileage
- 45,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the electrical system of the 2003 Chevrolet Suburban 2500, 14% of the 21 complaints for this model year. Where a mileage was given, the median is 45,500 miles.
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.
“2003 chevy SUBURBAN 2500 (3/4 ton) - the instrument clusters are junk and dangerously unreliable - faulty. It is absolutely criminal that GM and NHTSA not issue a formal recall on GM 2003-2006 instrument clusters. Mine began failing at 40,000 miles in 2005 (fuel gauge reading wrong or empty if idling more than 30 seconds, speedometer pegging or reading wrong intermittently). I mentioned this to the dealer but they lied and said that had no other reports of such. …”
NHTSA complaint #10218121, filed 2008-02, 40,000 miles“2003 chevy SUBURBAN 2500 with 122,000 miles - the fuel gauge registered zero and then the speedometer failed to register any speed. It then registered between 120mph and 0mph alternately.”
NHTSA complaint #10249806, filed 2008-11Related service bulletins
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- 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…
- 10084022Oct 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 Suburban 2500
14 complaintsFuel system
2 complaintsTransmission and drivetrain
2 complaintsEngine
1 complaintsEngine cooling
1 complaintsOther or unknown
1 complaintsBody and structure
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2003 Chevrolet Suburban 2500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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