Dealer visit checklist
2021 GMC Sierra 1500 checklist
Print it or keep it on your phone. Tick each item as you go so nothing gets missed.
Inspect the car
- Check every panel gap and look for mismatched paint (signs of past accident repair)
- Look at the tires: even wear, matching brands, at least 4/32" tread
- Check under the car and engine bay for oil, coolant or other leaks
- Start the engine cold; listen for knocks, ticks or squeals and watch for smoke
- Test every window, lock, seat, light, the A/C, heat and infotainment
- Test drive on city streets and highway: straight braking, smooth shifts, no pulling
- Ask for the service records and a vehicle history report
- Have an independent mechanic do a pre-purchase inspection (about $100–$200)
Known 2021 GMC Sierra 1500 problems to check
- Active Fuel Management (AFM) system on 5.3L V8 engines can cause excessive oil consumption and lifter failures, a known and costly issue
- Infotainment system (GMC's older 8-inch unit on base trims) can experience sluggish response and occasional software glitches
- Transmission shudder on 8-speed automatic, particularly at low speeds — a known GM issue with documented TSBs
- Paint and trim panel fit issues reported on several build dates, including peeling chrome and loose door seals
- Rear differential fluid leaks have been reported on higher-mileage examples, worth inspecting pre-purchase
Ask: have these recalls been fixed?
- SEAT BELTS: General Motors, LLC (GM) is recalling certain 2019-2021 Chevrolet Silverado 1500 and GMC Sierra 1500, 2021 Chevrolet Suburban and Tahoe and GMC Yukon XL and 2020-2021 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 vehicles.
- SEAT BELTS: General Motors, LLC (GM) is recalling certain 2020 Chevrolet Bolt EV and 2021 GMC Canyon and Sierra 1500, 2500 and 3500, Yukon, Yukon XL, Cadillac Escalade and Escalade ESV and Chevrolet Blazer, Camaro, Colorado, Equinox, Silverado 1500, 2500 and 3500, Suburban and Tahoe vehicles.
- TIRES: General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5, GMC Acadia and Chevrolet Traverse vehicles and 2020-2021 Chevrolet Silverado 1500, GMC Sierra 1500 vehicles.
- TIRES:TEMPORARY/EMERGENCY SPARE TIRE: General Motors (GM) is recalling certain 2019-2021 GMC Sierra 1500 and Silverado 1500 vehicles equipped with certain accessory road tires and a 17" spare tire.
- POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE: General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Silverado 1500, 2500, 3500, GMC Sierra 1500, 2500, 3500, 2021 Cadillac Escalade, Escalade ESV, Chevrolet Tahoe, Suburban, GMC Yukon, and Yukon XL vehicles equipped with diesel engines.
- ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL: General Motors LLC (GM) is recalling certain 2021-2024 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles equipped with a 6.2L V8 gas engine.
- POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE: General Motors, LLC is recalling certain 2020 Chevrolet Silverado 2500, 3500, GMC Sierra 2500, 3500, and 2020-2022 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles that may have been repaired incorrectly under recall 24V797.
Negotiate the price
- Know the typical price: about $35,000 for this model year
- Negotiate the out-the-door price, not the monthly payment
- Get the full price with every fee listed in writing before you sign
- Bring your own loan pre-approval so the dealer has a rate to beat
- Say no to add-ons you didn't ask for (paint protection, VIN etching, nitrogen tires)
- Negotiate your trade-in separately, after the car's price is agreed
- Be ready to walk away; another listing is usually a click away