2018 GMC Sierra 1500 Fuel system Problems
- Complaints
- 11about this part
- Share
- 4%of 305 total for the year
- Median mileage
- 22,179miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 11 complaints about the fuel system of the 2018 GMC Sierra 1500, 4% of the 305 complaints for this model year. Where a mileage was given, the median is 22,179 miles. 1 of these say a crash was involved and 1 a fire, 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.
“The sierra surges from park to reverse and drive. I bumped a vehicle today, and the surge has become an issue this week and there is not even 9,000 miles on the truck. The afm is rough shifting between v8 and v4 mode too. None of this was an issue until recently. My speakers also vibrate like a blown speaker on high definition radio, but not on regular radio stations.”
NHTSA complaint #11205912, filed 2019-05, 8,666 miles“Fuel injection seals #4 o-ring split - leaking fuel - pooling gas on manifold. Took vehicle in for smell of gas, lack of acceleration and poor gas mileage. This is known issue based on the service bulletin 18-na-137 - vehicle has less than 6000 miles”
NHTSA complaint #11153131, filed 2018-11, 5,460 miles“After long periods of running and idle, vehicle stalls out has a hard time restarting. Gas paddle being press helps sometimes. Check code p2635 plus others (random secondary codes), come on. This has taken place in az where the ambient air temperature typically is over 100. Vehicle has been to GM dealer who says its vaporizing the fuel in the lines. Tsb pip5507b dose not include 2018, however the design hasn't changed. Conditions; long idle, hot weather, low speeds under 25 MPH or idle. Location; az sonrona dessert, off-road, jobsite, city streets.”
NHTSA complaint #11354734, filed 2020-09, 35,692 miles“Gas leak. My 2018 gmc sierra 1500 has been giving me two codes for evap leak small and large and i notice a black spot on my drive way under the gas tank wich in fact was gas. I can see the gas tank is wet but it comes from the top part of the gas tank. I been looking for recalls on this but there isnt any for this specific year of GMC sierra 1500 slt.”
NHTSA complaint #11494999, filed 2022-11“When 1st cranking truck and put in drive motors rrev up and shifts hard to second. Occasionally when I out in reverse it will sit there n not shift in. Then when it does it shifts hard. When accelerating the truck it sounds like a clattering sound under drivers side under hood. Tried different type of gasoline and nothing changes. Gmac needs to do a recall on both of these items. I am very disappointed in my Gmc and gmac”
NHTSA complaint #11219920, filed 2019-06Related service bulletins
- 11024324Sep 4, 2025This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
- 11023365May 14, 2025This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
- 11017173Mar 21, 2025This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.
- 11013239Jan 14, 2025This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
- 11012678Dec 12, 2024This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
- 11011896Nov 21, 2024This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
- 11010874Oct 15, 2024This bulletin provides information on how to look for and test for DEF or water in the fuel system and what the specs should be.
- 11009462Sep 23, 2024This informational bulletin provides information on availability for a locking gas cap for trucks are operated in high amount of dirt or dust which can migrate to the filler cap…
- 11008893Aug 20, 2024This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
- 11007095Aug 7, 2024This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles…
Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 11 | 7% |
| 2025 | 7 | 6% |
| 2024 | 22 | 6% |
| 2023 | 38 | 8% |
| 2022 | 32 | 5% |
| 2021 | 42 | 7% |
| 2020 | 27 | 6% |
| 2019 | 27 | 4% |
| 2018 | 11 | 4% |
| 2017 | 7 | 2% |
| 2016 | 9 | 3% |
| 2015 | 13 | 2% |
| 2014 | 15 | 2% |
| 2012 | 3 | 3% |
| 2011 | 12 | 4% |
| 2010 | 6 | 4% |
| 2009 | 11 | 5% |
| 2008 | 5 | 1% |
| 2007 | 5 | 2% |
| 2006 | 8 | 6% |
| 2005 | 5 | 3% |
| 2004 | 9 | 4% |
| 2003 | 7 | 4% |
| 2002 | 1 | 1% |
| 2001 | 17 | 12% |
| 2000 | 14 | 8% |
| 1999 | 7 | 4% |
| 1998 | 4 | 7% |
| 1997 | 9 | 11% |
| 1996 | 1 | 20% |
| 1994 | 1 | 8% |
Other parts of the 2018 GMC Sierra 1500
131 complaintsEngine
67 complaintsBrakes
44 complaintsElectrical system
43 complaintsSteering
30 complaintsOther or unknown
25 complaintsSuspension
11 complaintsAir bags
8 complaintsWheels
7 complaintsEngine cooling
6 complaintsForward collision avoidance
6 complaintsBody and structure
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