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Buying a used 2018 GMC Sierra 3500? Check these 6 recalls first
Three critical recalls stand out: a fuel tank leak risk specific to 3500 models, and two actions on the diesel block heater cord that can short and burn. Dual fuel tanks can also stall the engine, a crew cab roof airbag can burst, and front seat belts were found faulty. Complaint volume is low at 14 unverified NHTSA reports, with no crashes, fires or injuries logged; brakes lead with six, then steering and electrical.
Before you buy
- Get the 17-character VIN from the seller and run it at nhtsa.gov/recalls. It shows which recalls are still unrepaired on that exact car.
- Ask for proof the 3500 fuel tank leak recall was completed and look and smell for fuel seepage underneath
- Confirm the block heater cord recalls were done and inspect the cord end for damage
- On a crew cab, verify the roof airbag recall and ask about the front seat belt recall
- Open recalls are repaired free at any GMC dealer, whoever owns the car — an open recall is a to-do item, not a bill.
Recalls covering the 2018 GMC Sierra 3500
| Recall | Area | Severity |
|---|---|---|
| GMC Sierra and Chevy Silverado 3500 fuel tank leak risk | Fuel System, Gasoline | critical |
| GM diesel pickups: block heater cord can short and burn | Engine | critical |
| Chevrolet Silverado and GMC Sierra block heater fire risk | Equipment | critical |
| GM Silverado and Sierra dual fuel tanks can stall engine | Fuel System, Diesel | high |
| Silverado and Sierra crew cabs: roof airbag can burst | AIR Bags | high |
| Chevrolet and GMC HD trucks have faulty front belts | Seat Belts | medium |
What owners have reported to NHTSA
14 complaints filed for this model year. Complaints are unverified owner reports, and popular models collect more of them simply because more are on the road.
| Problem area | Complaints | Recall in this area? |
|---|---|---|
| Brakes | 6 | None found |
| Steering | 3 | None found |
| Electrical System | 2 | None found |
| Exterior Lighting | 2 | None found |
| Fuel System | 1 | Yes |
| Driver Assistance | 1 | None found |