2018 GMC Sierra 2500 Problems
Compared with other GMC Sierra 2500 years
Typical for this model
52/100 1.1× a typical year · 50 = typical
- Complaint rate is 1.1× that of a typical GMC Sierra 2500 year, weighted for crashes, fires, injuries, recalls and mileage, and allowing for the era and for how long each year has had to collect complaints.
- 13 of its 35 complaints were filed by the end of 2020.
- Most reported part: Engine (8 complaints, median 5,641 mi).
- 5 recall campaigns on record. A VIN search at nhtsa.gov/recalls shows open recalls for a specific vehicle.
Nearby years with a typical complaint level and no open NHTSA investigation: 2019
Based only on NHTSA complaints, recalls and investigations. Not adjusted for how many vehicles were sold, and not a reliability rating. How this is calculated
- Complaints
- 35filed with NHTSA
- Median mileage
- 10,000miles, 14 complaints with mileage
- Recalls
- 5campaigns on record
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
- NHTSA crash rating
- 4 / 5stars overall, 6 rated versions
- EPA fuel economy
- —not in EPA data
Sources: NHTSA records for the 2018 GMC Sierra 2500 (complaints, recalls, investigations), NHTSA crash tests. Report an error
NHTSA recorded 35 consumer complaints for the 2018 GMC Sierra 2500. The part named most often is engine, with 8 complaints (23% of the total), followed by electrical system (7) and fuel system (6). 14 of the complaints include a mileage, and 100% of those were filed for vehicles with under 50,000 miles; the median is 10,000 miles. Of all complaints, 2 a fire, according to the filers. NHTSA lists 5 recall campaigns and 1,118 technical service bulletins for this model year. Engine complaints overlap with 1 recall campaign and 110 technical service bulletins filed under the same part. Electrical system complaints overlap with 1 recall campaign covering the engine block heater and 191 technical service bulletins filed under the same part. Compared with the other 14 GMC Sierra 2500 model years that have at least 25 complaints and are old enough to compare, this one scores 52 out of 100, where 50 is a typical year for the model (typical for this model). The comparison allows for the era and for how long each year has had to collect complaints, but not for how many vehicles were sold.
Which parts are reported most
Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.
- Engine8 23%
- Electrical system7 20%
- Fuel system6 17%
- Other or unknown5 14%
- Equipment4 11%
- Exterior lighting4 11%
- Tires3 8.6%
Also reported: Seat belts (1), Steering (1), Wheels (1).
Example complaints
Engine: “Faulty pigtail connector for fule injectors. Cause The vehicle to shut down even while going down the highway possibly causing injury by immediate deceleration wich could cause an accident. For me on this vehicle I’ve had this happen three times and it has cost me anywhere from $800 to 1000 per injector especially if damage is done to one of the fuel injectors.”
NHTSA complaint #11460968, filed 2022-04Electrical system: “While the truck was unattended, smoke was observed by a passer-by who called the local fire department. Fire dept broke a window for access, extinguished fire. Hauled vehicle away for safekeeping. Happened while we were at a condo complex, vehicle parked for the evening. Heat intensity and melted plastic indicated that fire occurred in console area. Vehicle was off, we were asleep, nobody had access to interior of vehicle. A phone charger was plugged in, possibly another charger as well.we contacted GM to file a warranty claim. …”
NHTSA complaint #11119531, filed 2018-08, 12,000 milesFuel system: “The contact owns a 2018 GMC Sierra 2500. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power. No warning light was illuminated. The vehicle was towed to the dealer, where it was determined that the fuel pump control module needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was opened. The failure mileage was approximately 48,000.”
NHTSA complaint #11618888, filed 2024-10, 48,000 milesOther or unknown: “Rear camera only works intermittently and never early mornings when truck is put in reverse. A blue screen comes up with 'service back up camera ' on screen.”
NHTSA complaint #11301726, filed 2020-01, 1,000 milesMileage when problems were reported
100% of the 14 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 3,500 and 30,600 miles.
Complaints by year filed
Trend: falling. Complaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
Crash test ratings
NHTSA's 5-Star Safety Ratings for the 2018 GMC Sierra 2500. Frontal results are shown driver / passenger; rollover shows the star rating and NHTSA's estimated risk of rolling over in a single-vehicle crash.
| Version | Overall | Frontal | Side | Side pole | Rollover |
|---|---|---|---|---|---|
| Sierra 2500 · regular cab 4WD | ★★★★☆ | 4 / 4 | 5 | 5 | 3 · 20.4% risk |
| Sierra 2500 · crew cab 4WD | ★★★★☆ | 4 / 4 | 5 | 5 | 3 · 20.5% risk |
| Sierra 2500 · extended cab 4WD | ★★★★☆ | 4 / 4 | 5 | 5 | 3 · 20.4% risk |
| Sierra 2500 · regular cab RWD | ★★★★☆ | 4 / 4 | 5 | 5 | 3 · 20.4% risk |
| Sierra 2500 · extended cab RWD | ★★★★☆ | 4 / 4 | 5 | 5 | 3 · 20.4% risk |
| Sierra 2500 · crew cab RWD | ★★★★☆ | 4 / 4 | 5 | 5 | 3 · 20.7% risk |
Driver aids listed by NHTSA for the 2018 model year: forward collision warning optional, lane departure warning optional, automatic emergency braking not available.
Neighbouring years: 2017: same overall rating; 2019: same overall rating. A redesign between years can change both the car and the test.
Source: NHTSA New Car Assessment Program (5-Star Safety Ratings), nhtsa.gov/ratings.
Recalls and investigations
- 24V756000Oct 10, 2024Air bags › Side/window › Curtain › InflatorCovers: GMC Sierra 2500 2018–2019, Chevrolet Silverado 2500 2018–2019, GMC Sierra 3500 2018–2019 +3 more
General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, GMC Sierra 1500, 2018-2019 Chevrolet Silverado 2500, 3500, and GMC Sierra 2500, 3500 Crew Cab trucks. The left or right-side roof-rail air bag (RRAB) inflator end cap may detach…
- 23V047000Feb 2, 2023Fuel system, diesel › Storage › Tank assemblyCovers: GMC Sierra 2500 2017–2019, Sierra 3500 2017–2019, Chevrolet Silverado 3500 2017–2019 +1 more
General Motors, LLC (GM) is recalling certain 2017-2019 Chevrolet Silverado 2500, 3500, and GMC Sierra 2500, 3500 vehicles equipped with a dual fuel tank option. The rear fuel tank may collapse and prevent the fuel pump from transferring fuel to the front…
- 21V496000Jul 1, 2021Equipment › Electrical › Engine block heaterCovers: GMC Sierra 2500 2017–2019, Sierra 3500 2017–2019, Chevrolet Silverado 3500 2017–2019 +1 more
General Motors, LLC (GM) is recalling certain 2017-2019 Chevrolet Silverado 2500, 3500 and 2017-2019 GMC Sierra 2500 and 3500 vehicles equipped with a Duramax diesel 6.6 liter engine and an optional engine-block heater cord. An electrical short-circuit may…
- 19V328000Apr 25, 2019EngineCovers: GMC Sierra 2500 2017–2019, Sierra 3500 2017–2019, Chevrolet Silverado 3500 2017–2019 +4 more
General Motors LLC (GM) is recalling certain 2019 Chevrolet Silverado 4500, 5500 and 6500 vehicles and 2017-2019 Chevrolet Silverado 2500 and 3500 vehicles and GMC Sierra 2500 and 3500 vehicles equipped with Duramax 6.6 liter diesel engines and an optional…
- 17V567000Sep 14, 2017Seat belts › Front › RetractorCovers: GMC Sierra 2500 2017–2018, Sierra 3500 2017–2018, Chevrolet Silverado 3500 2017–2018 +1 more
General Motors (GM) is recalling certain 2017-2018 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 trucks. The front seat belt retractor assemblies were built with the incorrect torsion bar. As such, these vehicles fail to comply with the…
Recall details for the 2018 GMC Sierra 2500 → · Check a VIN at nhtsa.gov/recalls
Technical service bulletins
TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 1,118 on record; the latest 10 are shown.
- 11037560Sep 26, 2026Other or unknown. This PI was created to help address the correct repair regarding a low coolant message on the DIC
- 11037555Sep 26, 2026Other or unknown. This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
- 11037253Sep 4, 2026Other or unknown. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- 11035350Jul 23, 2026Other or unknown. This PI provides information to repair the door water deflector which is not sealed properly allows water into the door jam/sill area.
- 11035340Jul 21, 2026Other or unknown. PI to help diagnose A/C concern
- 11035308Jul 21, 2026Other or unknown. This PI provides diagnostic tips for diagnosing electric trailer brakes issues.
- 11034767Jun 24, 2026Other or unknown. This Preliminary information communicates information on a hydraulic rush type noise from the power steering gear. This noise is a characteristic of the new Active Hydraulic Assist System RPO NV8…
- 11032777May 14, 2026Other or unknown. This PI provides diagnostic tips for diagnosing electric trailer brakes issues.
- 11030974Apr 1, 2026Other or unknown. This preliminary information communicates information about how to determine if a wheel and tires size change is available.
- 11030092Mar 9, 2026Other or unknown. This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
Other model years of the GMC Sierra 2500
| Year | Complaints | Median mi | Recalls | Crash ★ | MPG | Score (50 = typical) | Trend |
|---|---|---|---|---|---|---|---|
| 2026 | 13 | 9,000 | 1 | — | — | — | Too new |
| 2025 | 28 | 1,300 | 1 | — | — | Too new to compare | Too new |
| 2024 | 107 | 9,904 | 4 | — | — | Too new to compare | Too new |
| 2023 | 33 | 34,000 | 1 | — | — | 40 · Typical | Too new |
| 2022 | 45 | 15,167 | 3 | — | — | 65 · More | Rising |
| 2021 | 52 | 53,000 | 6 | — | — | 69 · More | Rising |
| 2020 | 79 | 31,800 | 9 | — | — | 98 · More | Rising |
| 2019 | 32 | 28,729 | 7 | 4 | — | 50 · Typical | Rising |
| 2018 | 35 | 10,000 | 5 | 4 | — | 52 · Typical | Falling |
| 2017 | 37 | 22,060 | 6 | 4 | — | 53 · Typical | Falling |
| 2016 | 59 | 29,500 | 6 | 4 | — | 64 · Typical | Stable |
| 2015 | 89 | 37,023 | 6 | 3–4 | — | 93 · More | Falling |
| 2014 | 30 | 39,000 | 2 | 2–4 | — | 10 · Fewer | Falling |
| 2013 | 46 | 60,000 | 3 | 2–4 | — | 0 · Fewer | Stable |
| 2012 | 31 | 68,500 | 3 | 3–4 | — | 2 · Fewer | Rising |
| 2011 | 63 | 55,400 | 4 | — | — | 34 · Fewer | Falling |
| 2010 | 10 | 77,000 | 5 | — | — | — | Not enough data |
| 2009 | 31 | 39,600 | 5 | — | — | 39 · Typical | Falling |
| 2008 | 63 | 67,500 | 3 | — | — | 17 · Fewer | Falling |
| 2007 | 83 | 70,000 | 3 | — | — | Not compared (before 2008) | Rising |
| 2006 | 66 | 43,500 | 1 | — | — | Not compared (before 2008) | Falling |
| 2005 | 115 | 60,000 | 1 | — | 11 | Not compared (before 2008) | Falling |
| 2004 | 143 | 60,000 | 1 | — | — | Not compared (before 2008) | Falling |
| 2003 | 160 | 73,000 | 0 | — | — | Not compared (before 2008) | Falling |
| 2002 | 134 | 85,500 | 1 | — | — | Not compared (before 2008) | Rising |
| 2001 | 134 | 65,000 | 2 | — | — | Not compared (before 2008) | Stable |
| 2000 | 48 | 91,000 | 1 | — | 15 | Not compared (before 2008) | Stable |
| 1999 | 36 | 100,000 | 0 | — | 15 | Not compared (before 2008) | Stable |
| 1998 | 15 | 47,000 | 1 | — | 15 | — | Stable |
| 1997 | 14 | 100,000 | 2 | — | 15 | — | Not enough data |
All GMC Sierra 2500 model years · Best and worst years by complaints
Frequently asked questions
How many NHTSA complaints does the 2018 GMC Sierra 2500 have?
NHTSA recorded 35 consumer complaints for the 2018 GMC Sierra 2500 as of Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
What part of the 2018 GMC Sierra 2500 is reported most often?
Engine is named most often, in 8 complaints (23% of the total), followed by electrical system with 7.
Has the 2018 GMC Sierra 2500 been recalled?
NHTSA lists 5 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.
How did the 2018 GMC Sierra 2500 do in NHTSA crash tests?
NHTSA's 5-Star Safety Ratings give the 2018 GMC Sierra 2500 4 out of 5 stars overall, across 6 rated versions (body style and drive). Ratings from different model years are only comparable when the vehicle was not redesigned in between.
At what mileage are problems with the 2018 GMC Sierra 2500 reported?
Among the 14 complaints that include a mileage, the median is 10,000 miles and the middle half falls between 3,500 and 30,600 miles; 100% were filed for vehicles with under 50,000 miles.
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. Crash ratings are from NHTSA’s New Car Assessment Program.
Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.