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Transmission and drivetrainPart report

2003 GMC Sierra 3500 Transmission and drivetrain Problems

Complaints
1about this part
Share
14%of 7 total for the year
Median mileage
21,503miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the transmission and drivetrain of the 2003 GMC Sierra 3500, 14% of the 7 complaints for this model year. Where a mileage was given, the median is 21,503 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.

“I recently had a brake failure on my 2003 Gmc SIERRA 3500 series truck. I was driving when my brakes gave out. The pedal went to the floor and I was barely able to stop before striking a parked car. I took it to the dealer and was told that my brake lines and calipers are corroded and in need of replacement for a $4200. I had the brakes replaced last february and put less than 1000 miles before this incident. The rear brake pads which were replaced then needed to be replaced because of corrosion issues. …”

NHTSA complaint #10445199, filed 2012-01, 21,503 miles

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
2026240%
202516%
20241325%
20231450%
2022619%
2021735%
20201937%
201918%
201817%
2017323%
2016211%
201513%
2014114%
2013214%
2012333%
2011210%
2009240%
200814%
2007213%
2006327%
200414%
2003114%
2000312%
1997220%

Other parts of the 2003 GMC Sierra 3500

Brakes
3 complaints
Air bags
1 complaints
Electrical system
1 complaints
Fuel system
1 complaints
Seat belts
1 complaints
Steering
1 complaints

← All problems reported for the 2003 GMC Sierra 3500

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