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Transmission and drivetrainPart report

2006 GMC Sierra 3500 Transmission and drivetrain Problems

Complaints
3about this part
Share
27%of 11 total for the year
Median mileage
37,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the transmission and drivetrain of the 2006 GMC Sierra 3500, 27% of the 11 complaints for this model year. Where a mileage was given, the median is 37,000 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.

“The contact owns a 2006 Gmc SIERRA 3500. While examining the vehicle he noticed fluid leaking from under the front passenger side of the vehicle. The vehicle was taken to the dealership and he was advised that the transmission cooling lines needed to be replaced. There were no prior warnings. The current and failure mileages were 44000.”

NHTSA complaint #10296732, filed 2009-12, 44,000 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 2006 GMC Sierra 3500

Steering
3 complaints
Air bags
2 complaints
Brakes
2 complaints
Engine cooling
1 complaints
Tires
1 complaints

← All problems reported for the 2006 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