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Transmission and drivetrainPart report

2018 GMC Sierra 3500 Transmission and drivetrain Problems

Complaints
1about this part
Share
7%of 14 total for the year
Median mileage
58,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the transmission and drivetrain of the 2018 GMC Sierra 3500, 7% of the 14 complaints for this model year. Where a mileage was given, the median is 58,000 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.

“I was driving up hill the truck lost power died/shutdown so I had no power steering no power brakes we live on a country rural road. Had the truck towed to kendall chevrolet in eugene oregon where it has been since november 2 with electrical issues that they are trying to pinpoint.”

NHTSA complaint #11281407, filed 2019-11, 58,000 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 2018 GMC Sierra 3500

Brakes
6 complaints
Steering
3 complaints
Electrical system
2 complaints
Exterior lighting
2 complaints
Visibility (wipers, defrost, mirrors)
2 complaints
Electronic stability control
1 complaints
Engine
1 complaints
Forward collision avoidance
1 complaints
Fuel system
1 complaints

← All problems reported for the 2018 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