2018 GMC Sierra 1500 Seats Problems
- Complaints
- 2about this part
- Share
- 1%of 305 total for the year
- Median mileage
- 28,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the seats of the 2018 GMC Sierra 1500, 1% of the 305 complaints for this model year. Where a mileage was given, the median is 28,000 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 purchased a 2018 GMC Sierra 1500 6.2 Denali new. I followed all service requirements including oil changes by GM dealerships. 2025 i noticed my truck power was decreasing. Than I started to hear knocking noses. I took it to a dealership for diagnosis but they couldn't identify anything. Finally it started to skip this is when a dealership diagnose it as being an issue with the active fuel management system. They said my lifters, camshaft, and various other parts was damaged and had to be replaced. …”
NHTSA complaint #11696714, filed 2025-10Related service bulletins
- 11006317Aug 13, 2024This Preliminary information communicates assistance in locating the Rear seat belt comfort guides in the parts catalog.
Seats: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2024 | 3 | 1% |
| 2021 | 1 | 0% |
| 2019 | 2 | 0% |
| 2018 | 2 | 1% |
| 2017 | 2 | 1% |
| 2016 | 7 | 2% |
| 2015 | 9 | 1% |
| 2014 | 5 | 1% |
| 2013 | 2 | 2% |
| 2011 | 2 | 1% |
| 2010 | 3 | 2% |
| 2009 | 2 | 1% |
| 2007 | 3 | 1% |
| 2006 | 1 | 1% |
| 2005 | 1 | 1% |
| 2002 | 1 | 1% |
| 2000 | 1 | 1% |
| 1999 | 10 | 6% |
| 1998 | 1 | 2% |
Other parts of the 2018 GMC Sierra 1500
131 complaintsEngine
67 complaintsBrakes
44 complaintsElectrical system
43 complaintsSteering
30 complaintsOther or unknown
25 complaintsFuel system
11 complaintsSuspension
11 complaintsAir bags
8 complaintsWheels
7 complaintsEngine cooling
6 complaintsForward collision avoidance
6 complaints
← All problems reported for the 2018 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