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Transmission and drivetrainPart report

2008 GMC Sierra 1500 Transmission and drivetrain Problems

Complaints
6about this part
Share
2%of 381 total for the year
Median mileage
96,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the transmission and drivetrain of the 2008 GMC Sierra 1500, 2% of the 381 complaints for this model year. Where a mileage was given, the median is 96,000 miles. 1 of these say a crash was involved, 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.

“My vehicle has a thump while applying and releasing the brake pedal and the manufacturer has tried to repair the drive line/ shaft several times. Now the manufacturer is saying that there is no repair parts for the problem that I'm experiencing.”

NHTSA complaint #10280435, filed 2009-08, 7,186 miles

“Dash is cracked in the common place for these vehicles. Corner above the instrument panel and at the passenger side airbag, the transmission is also a issue, the 3/4 gear packet has went out and the housing inside the transmission is cracked, so it would've broke soon also.”

NHTSA complaint #11309995, filed 2020-02, 115,006 miles

“The contact owns a 2008 Gmc SIERRA 1500. While driving approximately 5 MPH, the vehicle stalled. The vehicle was restarted, but the failure recurred and code: p069-e illuminated. The dealer was not called. The manufacturer was made aware of the failure and stated that there was no recall. The vehicle was not repaired. The failure mileage was approximately 130,000.”

NHTSA complaint #11155664, filed 2018-12, 130,000 miles

“The contact owns a 2008 Gmc SIERRA 1500. After the contact parked and exited the vehicle, it began to roll forward in his garage. The vehicle crashed into the garage door and the contact sustained injuries. He took the vehicle to the dealer and they could not find any failures. The contact called Gmc and a representative came out to take pictures and inspect the vehicle. The purchase date was unknown. The current mileage was 27,000 and failure mileage was 13,202.”

NHTSA complaint #10221007, filed 2008-03, 13,202 miles

“2008 Gmc SIERRA 1500. Consumer writes in regards to thump under the right rear wheel the consumer was informed the front differential had a crack in it and the rear middle leaf spring was broken.”

NHTSA complaint #10419074, filed 2011-08

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
20263524%
20252822%
20247319%
20239218%
202211319%
202114524%
20209920%
201914021%
201813143%
201711833%
20168424%
20159914%
2014699%
201333%
201266%
2011248%
201042%
200994%
200862%
200762%
2006139%
2005116%
200484%
200363%
200253%
200132%
200095%
199921%
1998712%
1997810%
199418%

Other parts of the 2008 GMC Sierra 1500

Air bags
243 complaints
Other or unknown
42 complaints
Electrical system
31 complaints
Body and structure
25 complaints
Latches, locks and linkages
23 complaints
Engine
19 complaints
Seat belts
13 complaints
Brakes
10 complaints
Tires
7 complaints
Fuel system
5 complaints
Suspension
3 complaints
Vehicle speed control
3 complaints

← All problems reported for the 2008 GMC Sierra 1500

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