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2018 GMC Sierra 2500 Problems and Recalls
Owners filed 35 complaints with NHTSA about the 2018 GMC Sierra 2500, most often about the engine (23% of complaints). It is 19th of 27 Sierra 2500 model years by number of complaints and has 5 recalls.
Most common 2018 GMC Sierra 2500 problems
Engine
8 complaints · 23%The contact owns a 2018 GMC Sierra 2500. While driving 30-50 MPH up a hill, the vehicle shuddered. There were no warning indicators illuminated. The vehicle was not diagnosed or repaired. The manufacturer and dealer were not contacted. The failure mileage was 5,641. The VIN was invalid.
Electrical
7 complaints · 20%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…
My 2018 GMC sierra hd experienced an electrical short or overload, causing a thermal event that melted areas around the rear defrost circuit. Lots of smoke and burning smell, but luckily, I did not see flames. The exact issue is currently being addressed under gm recall# "n192265660 rear window defroster thermal…
Fuel system
6 complaints · 17%My husband was driving our brand new denali which has only 3500 miles on it. The engine completely shut down crossing a highway with 55 miles per hour posting and my daugther of 8 years old was in the back seat. The engine as I said completely shut down with no indicator lights or warning and my husband was unable to…
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.…
Other or unspecified
5 complaints · 14%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.
Lights
4 complaints · 11%Headlight shakes and flickers while driving over bumps in the road. Happens on city streets and highways. Flickering is very distracting and draws attention away from your surroundings.
Wheels and tires
4 complaints · 11%Parts named most often: sidewall.
The contact owns a 2018 GMC Sierra 2500 equipped with original firestone transforce h/t tires, size: 245/75/r17 (na). Upon inspection, the contact discovered that all four tires had experienced sidewall bubbling. The unused spare tire also experienced the failure. The vehicle was taken to griffin motor company (2500…
Equipment
4 complaints · 11%The contact owns a 2018 GMC Sierra 2500. The contact received a notification for NHTSA campaign number: 21v496000 (equipment) however, the part to do the recall repair was unavailable. The dealer had been notified about the recall; however, the contact was informed that the part was not yet available. The manufacturer…
Transmission
3 complaints · 9%Parts named most often: automatic transmission.
Truck began rolling downhill while the vehicle was in park with the keys out of tge ignition. I was removing a child seat from the passenger side rear seat at the time. Spouse was able to hurriedly jump into the vehicle and apply the brakes.
While trying to merge onto the insterstate my truck started lost power and started to chug. My truck slowed drastically which caused a tractor/trailer to almost run into the back of me. This has been an ongoing issue that my dealership has addressed by reflashing my computer. To my knowledge the first flash was for…
Complaints are owner reports to NHTSA, not verified defects. One complaint can name several components, so shares add up to more than 100%.
2018 GMC Sierra 2500 recalls
Air bags: inflator
Risk: A separated inflator end cap or inflator rupture can allow compressed gas to escape, resulting in the end cap or other components being propelled into the vehicle, increasing the risk of injury or crash.
Fix: Dealers will replace the left and right side rrab modules, free of charge. Owner notification letters were mailed november 8, 2024. Owners may contact chevrolet customer service at 1-800-222-1020, and gmc customer service at 888-988-7267. Gm's number for this recall is n242474500.
Full defect summary
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 from the inflator or the inflator sidewall may rupture.
Fuel system: tank assembly
Risk: An engine stall increases the risk of a crash.
Fix: Dealers will inspect the fuel tank and fuel pump module, replacing them as necessary. Dealers will also add a vent hose to the rear tank assembly. Repairs will be performed free of charge. An interim owner notification letter informing owners of the safety risk was mailed on march 15, 2023. Owner notification letters were mailed june 21, 2023. Owners may contact chevrolet customer service at 1-800-222-1020 or gmc customer service at 1-800-462-8782. Gm's number for this recall is n222368030.
Full defect summary
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 tank, resulting in an engine stall.
Equipment: engine block heater
Risk: An electrical short-circuit can increase the risk of a fire.
Fix: Dealers will replace engine block heaters and heater cords. Vehicles that have this feature disabled as a remedy to the safety condition will be contacted and offered replacement block heaters and heater cords under a separate customer satisfaction program, free of charge. Gm will provide free replacement block heaters and cords under a separate customer satisfaction campaign. For vehicles previously included in recall 19v-328, the heater cord will be replaced and rerouted, free of charge. Interim owner notifications were mailed on august 13, 2021. Owner notification letters are expected to be
Full defect summary
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 occur in the engine-block heater cable or in the terminals that connect the heater cable to the block heater.
Engine
Risk: A short-circuit may damage the engine components and increase the risk of fire.
Fix: Gm will contact owners, dealers will replace the engine block heater, free of charge. Additionally, in chevrolet silverado 2500 and 3500 vehicles, dealers will install a new rerouted heater cord. The recall began december 11, 2019. Owners may contact gm customer service at 1-586-596-1733. Gm's number for this recall is n182206310.
Full defect summary
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 engine-block heater. The engine block heater cord or the terminals that connect the heater cord to the block heater may short circuit and fail.
Seat belts: retractor
Risk: The seat belt retractors may not perform as intended during a crash, increasing the risk of injury.
Fix: Gm will notify owners, and dealers will replace both front seat belt retractor assemblies, free of charge. The recall began march 24, 2021. Owners may contact gmc customer service at 1-888-988-7267 or chevrolet customer service at 1-800-222-1020. Gm's numbers for this recall are 17368, 17375, and 17376.
Full defect summary
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 requirements of federal motor vehicle safety standard number 209, "seat belt assemblies."
Recall repairs are free at any franchised dealer. Enter your VIN at nhtsa.gov/recalls to see which recalls are still open on your car.
Questions about the 2018 GMC Sierra 2500
- What are the most common problems with the 2018 GMC Sierra 2500?
- By NHTSA owner complaints: engine (8 complaints); electrical (7 complaints); fuel system (6 complaints).
- How many recalls does the 2018 GMC Sierra 2500 have?
- 5 recalls listed by NHTSA, the latest from October 10, 2024 (air bags). Check your VIN at nhtsa.gov/recalls to see which ones are still open on your car.
- Is the 2018 a bad year for the GMC Sierra 2500?
- It is 19th of 27 Sierra 2500 model years by number of complaints, with 35 complaints. Complaint counts are not adjusted for how many cars were sold, so popular years collect more of them, and the newest years have had less time to.