2018 GMC Sierra 1500 Body and structure Problems
- Complaints
- 6about this part
- Share
- 2%of 305 total for the year
- Median mileage
- 29,562miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the body and structure of the 2018 GMC Sierra 1500, 2% of the 305 complaints for this model year. Where a mileage was given, the median is 29,562 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 2018 Gmc sierra slt's break pedal becomes extremely difficult to press, and I can hear something that sounds like air coming from the pedal. This happens especially at lower speeds.this caused me to crash into a concrete wall and damage my truck. My truck has only 10,000 miles.”
NHTSA complaint #11228338, filed 2019-06, 10,000 miles“I left home to go to the store. While driving on the highway my sunroof exploded. There were no cars or truck in front of me or passing me. Nothing hit my truck. It sounded like a shotgun going off inside the truck. The sunroof exploded sending glass everywhere. I was driving on a 5 lane highway, it was raining, but not a bad storm. The road was straight and in good condition. It happened so fast I did not know what was going on. I pulled into a gas station to check my truck. I found glass all in the bed of the truck and most of the sunroof gone. …”
NHTSA complaint #11416550, filed 2021-05, 34,960 miles“I own a Gmc sierra which is 14 months old, purchased in dubai uae from alghandi auto. The last service for 40000 kms was done on august 8th, 2019 and no problem was highlighted except the battery that was subsequently changed. On friday early morning (sep 27, 2019), we have escaped a major accident on sheikh zayed road on account of the front wheel axle that just broke/came apart while driving, causing the front right wheel to detach from the vehicle, subsequently skidding to the right causing major damage to the suspension and many other parts in the vehicle. …”
NHTSA complaint #11290510, filed 2019-12, 29,562 miles“Spare tire crank cable broke allowing spare tire to fall out from under the truck on the interstate at 70 MPH. Spare tire slide backwards under my 5th wheel camper damaging the camper and flying off into the highway median.”
NHTSA complaint #11407546, filed 2021-04, 60,000 miles“The sunroof in the 2018 Gmc sierra exploded outward of the vehicle, dropping glass shards into the cabin. The vehicle was in motion at about 15 MPH in a neighboorhood street with no overhanging objects that may have contacted the glass. The weather foreceast for the day was sunny with a high of 76 degree fahrenheit. No external contact was made to the sunroof glass prioir to the incident. No investigation was desired by both the local dealership or general motors on the incident itself. Both have directed me to making an insurance claim to rectify the situation.”
NHTSA complaint #11156354, filed 2018-12, 8,300 milesRelated service bulletins
- 11022868May 8, 2025This informational bulletin provides information on Anti-Chip Coating Appearance.
- 11016944Mar 11, 2025This service bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).
- 11015382Feb 20, 2025This informational bulletin provides a procedure on how to remove the paint stain that may present itself under the shipping film.
- 11014171Jan 31, 2025This service bulletin provides information on proper use of floor mats.
- 11014238Jan 30, 2025This warranty administration service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
- 11013352Jan 23, 2025This informational bulletin provides explanation of a normal condition of a loose fitting trailer hitch receiver in the gooseneck hitch ball.
- 11011704Nov 7, 2024This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information and repair procedures.
- 11011709Nov 5, 2024This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11010566Oct 8, 2024This service bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).
- 11010546Oct 7, 2024This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information and repair procedures.
Body and structure: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 2 | 1% |
| 2025 | 3 | 2% |
| 2024 | 31 | 8% |
| 2023 | 94 | 19% |
| 2022 | 107 | 18% |
| 2021 | 13 | 2% |
| 2020 | 13 | 3% |
| 2019 | 15 | 2% |
| 2018 | 6 | 2% |
| 2017 | 8 | 2% |
| 2016 | 7 | 2% |
| 2015 | 28 | 4% |
| 2014 | 31 | 4% |
| 2013 | 25 | 22% |
| 2012 | 21 | 20% |
| 2011 | 45 | 16% |
| 2010 | 34 | 20% |
| 2009 | 20 | 9% |
| 2008 | 25 | 7% |
| 2007 | 17 | 6% |
| 2006 | 9 | 6% |
| 2005 | 3 | 2% |
| 2003 | 4 | 2% |
| 2002 | 8 | 5% |
| 2001 | 6 | 4% |
| 2000 | 11 | 6% |
| 1999 | 9 | 6% |
| 1998 | 4 | 7% |
| 1997 | 3 | 4% |
| 1996 | 1 | 20% |
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 29, 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