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    GMC Sierra 1500

    EPA MPG: 17 mpg

    RECALL ALERT:
    There are 11 recalls on this vehicle. Learn More.

    Reliability

    Overall Reliability

    The 2020 Sierra 1500 is less reliable than other cars from the same model year.

    The 2020 GMC Sierra 1500 has been recalled 11 times by NHTSA. View Recalls
    Most Common Trouble Spots
    Common Trouble Spot
    Common Trouble Spot

    Owner Reported Trouble Spots

    The Reliability score is based on our latest subscriber survey of 2020 GMC Sierra 1500 owners. The owner comments describe problems respondents experienced with this vehicle.

    Fuel System/Emissions

    Sensors (O₂, or oxygen, sensor), emission-control devices (includes EGR), fuel-injection system, fuel gauge/sender, fuel pump, problems filling up the tank.

    What Owners Say

    Fuel injection system

    "Turbo charger actuator replacement before turbo charger replaced Also replaced front axle Also replaced $400 DOLLAR control box of some type Payed to have truck computer reprogrammed Did a company recall for programming updates to truck computer so when a part in transmission went bad it would not tare up transmission So what happened was I paid for a default in transmission that the company discovered after I had my problem started coverage"

    Anonymous A., AR (2020 GMC Sierra 1500 SLE 3.0-L 6 Cyl diesel)
    Fuel pump

    ""45,000 seems like low. Milage for fuel injection pump problems Truck used on pavement all the time pulled a Coachman 20 ft camper total of 2000 miles when transmission went out Truck had been serviced big tire and service center in popular Bluff Missouri before trip""

    Anonymous A., AR (2020 GMC Sierra 1500 SLE 3.0-L 6 Cyl diesel)
    Other emissions/fuel system problem

    "DEF sensor failed (or something related to the DEF and emissions control). Was repaired under warranty."

    Anonymous, CA (2020 GMC Sierra 1500 Denali 3.0-L 6 Cyl diesel)

    "Purge sensor module most recently replaced and last year it was some hose issue. Expensive repairs not covered by warranty of course."

    Anonymous, PA (2020 GMC Sierra 1500 Elevation 5.3-L V8)

    Transmission Major

    Transmission rebuild or replacement, torque converter, premature clutch replacement.

    What Owners Say

    Transmission rebuild or replacement

    ""Transmission loud pop quit pulling 33,5oo miles on Transmission not not covered by warranty do to truck had finders and hood put on it due to wreck previously approximately a year earlier""

    Anonymous A., AR (2020 GMC Sierra 1500 SLE 3.0-L 6 Cyl diesel)

    "The truck was making a "whining" noise. I took it to the dealer who said there was an issue with the transmission and it had to be replaced."

    Anonymous A., MO (2020 GMC Sierra 1500 SLE 5.3-L V8)

    "Covered in previous questions"

    Anonymous A., AR (2020 GMC Sierra 1500 SLE 3.0-L 6 Cyl diesel)

    Noises/Leaks

    Squeaks, rattles, wind noises, seals and/or weather stripping, air and water leaks.

    What Owners Say

    Air or water leaks

    ""Water leaks into the truck from the rear passenger side, near the rear window.""

    Anonymous A., TX (2020 GMC Sierra 1500 Denali 5.3-L V8)

    ""rear window developed a leak, online research and dealer confirmed this is common with this truck. yet no warranty coverage!?! paid out of pocket for window replacement.""

    Anonymous, TX (2020 GMC Sierra 1500 Denali 6.2-L V8)

    ""Truck was parked on uphill incline night of purchase. After a rainy night, we found water had leaked down inside of cab rear window. Does not seem to occur when being driven and parked on flat surfaces.""

    Anonymous, OR (2020 GMC Sierra 1500 SLT 5.3-L V8)

    Electrical Accessories

    Cruise control, clock, warning lights, body control module, keyless entry, wiper motor or washer, tire pressure monitor, interior or exterior lights, horn, gauges, 12V power plug, USB ports, alarm or security system, remote engine start, heated or cooled seats, heated steering wheel, headlights, automatic headlights, automatic wipers, wireless charging pad.

    What Owners Say

    12V battery

    "Battery died in 2022 after owning the vehicle for 18 months. I replaced it with a premium after-market battery and have had no further problems."

    Anonymous, TX (2020 GMC Sierra 1500 SLE 5.3-L V8)
    Other electrical system problem

    "I set the memory and the system doesnt remember."

    Anonymous, VA (2020 GMC Sierra 1500 SLE 5.3-L V8)

    Engine Minor

    Accessory belts and pulleys, engine computer, engine mounts, engine knock or ping, fuel leaks, oil leaks.

    What Owners Say

    Oil leaks

    "It started in 2021 after a recall service was performed. It took 6 visits back to the dealer before they found and solved the leak."

    Anonymous, MI (2020 GMC Sierra 1500 Denali 3.0-L 6 Cyl diesel)
    Other minor engine problem

    "since new this engine has consumed oil with no leak or exhaust indication of it burning oil??? uses 1-2 qts between oil changes. online forums agree this is a problem for 6.2 liter engine but dealer dismisses concerns. a modern truck of this value/cost/quality should never consume oil. very frustrated with this issue"

    Anonymous, TX (2020 GMC Sierra 1500 Denali 6.2-L V8)

    Suspension/Steering

    Shocks or struts, ball joints, tie rods, wheel bearings, alignment, steering linkage (includes rack and pinion), power steering (pumps and hoses, leaks), wheel balance, springs or torsion bars, bushings, electronic or air suspension.

    What Owners Say

    Shocks or struts

    "Struts failed. We had to pay to replace them. The new struts come with lifetime warranty. Why didn't the original struts come with lifetime warranty?"

    Anonymous, MI (2020 GMC Sierra 1500 Denali 3.0-L 6 Cyl diesel)
    Tire wear is uneven

    "Front wheels became un-aligned and ate the inside corner of the wheels down to the metal."

    Anonymous A., TX (2020 GMC Sierra 1500 Denali 5.3-L V8)

    In-car Electronics

    Infotainment system (audio, GPS, phone), rear entertainment system, backup or other camera/sensors, head-up display.

    What Owners Say

    Display screen goes blank

    ""When it's extremely cold out the screen does not come on when I start the truck in the morning, there is volume from the radio that you cannot adjust. This is an issue that GMC will not diagnose unless I can bring it to them not working however it generally starts to work after 10 or 15 minutes of driving the truck""

    Anonymous, AB (2020 GMC Sierra 1500 Elevation 2.7-L 4 Cyl turbo)
    Phone pairing (e.g., Bluetooth)

    "Android car play randomly disconnects even though it's plugged in with a USB cord"

    Anonymous, AB (2020 GMC Sierra 1500 Elevation 2.7-L 4 Cyl turbo)

    Brakes

    Premature pad/rotor wear, pulsation or vibration, antilock system, parking brake, master cylinder, calipers, squeaking, brake failure, regenerative braking.

    What Owners Say

    Pulsation or vibration

    "On my third set of rotors. They dont seem to last long before warping."

    Anonymous, PA (2020 GMC Sierra 1500 Elevation 5.3-L V8)

    Body Hardware

    Windows, locks and latches, doors or sliding doors, tailgate, trunk or hatch, mirrors, seat controls (power or manual), seat belts, sunroof, convertible top, glass defect.

    Exhaust

    Muffler, pipes, catalytic converter, exhaust manifold, heat shields, leaks.

    Engine Cooling

    Radiator, cooling fan, water pump, thermostat, antifreeze leaks, overheating.

    Transmission Minor

    Gear selector and linkage, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission, leaks.

    Paint/Trim

    Paint (fading, chalking, peeling, or cracking), loose interior or exterior trim or moldings, rust.

    Drive System

    Driveshaft or axle, CV joint, differential, transfer case, four-wheel-drive/all-wheel-drive components, driveline vibration, electrical failure, traction control, electronic stability control.

    Engine Electrical

    Alternator, starter, hybrid battery replacement, hybrid battery related systems, regular battery, battery cables, engine harness, coil, ignition switch, electronic ignition, spark plugs and wires failure, auto stop/start.

    Climate System

    AC compressor, blower (fan) motor, condenser, evaporator, heater system, automatic climate system, electrical failure, refrigerant leakage.

    Engine Major

    Engine rebuild or replacement, cylinder head, head gasket, turbocharger or supercharger, timing chain or belt.

    2020 Pickup Trucks Reliability

    This Car
    vs. Similar Cars

    GMC vs. Other New Car Brands Reliability

    Reliability History
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    Overall Reliability Verdict

    POTENTIAL TROUBLE SPOTS
    Powertrain
    Engine Major
    Engine Minor
    Engine Cooling
    Engine Electrical
    Transmission Major
    Transmission Minor
    Drive System
    Fuel System/Emissions
    Exhaust
    Suspension/Steering
    Brakes
    Climate System
    Build Quality
    Electrical Accessories
    Body Hardware
    Paint/Trim
    Noises/Leaks
    In-car Electronics
    Reliability indicates how models have performed in the past, providing the basis for predicting how the vehicles will hold up in the year ahead. These charts provide the most comprehensive reliability information available to consumers. Based on information received from our latest subscriber survey for about 380,000 vehicles, our reliability history charts give you a rundown on how 2000 through 2025 vehicles are holding up in 20 potential trouble spots, ranging from the engine, transmission, electric motor, EV charging, and brakes, to power equipment and the electrical accessories.
    Recalls
    PROVIDED BY
    POWER TRAIN
    Oct 24, 2024
    Rear wheel lock-up can increase the risk of a crash.
    Summary:
    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. The transmission control valve may fail and cause the rear wheels to lock-up.
    What should you do:
    Dealers will install new transmission control module software, free of charge. GM will provide a special coverage program to cover the repair of transmissions that are identified by the remedy software as containing a defective control valve. Owner notification letters were mailed December 12, 2024. Owners may contact GM customer service at 1-888-988-7267, Cadillac customer service at 1-800-458-8006, GMC customer service at GMC 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242454440.
    For more information:
    Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153) or go to www.nhtsa.gov.
    NHTSA CAMPAIGN ID Number: 24V797000
    Potential Number of Units Affected: 463295
    TIRES
    Dec 16, 2021
    An ABS system that does not function properly can increase the risk of a crash.
    Summary:
    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. The 17" spare tire provided with the vehicle is not compatible for use with the accessory wheels, which can cause the anti-lock brake system (ABS) to not function properly under certain conditions.
    What should you do:
    Dealers will provide a new 17" spare tire and wheel assembly that is compatible with the accessory wheels, free of charge. Dealers will also apply a new spare tire information label, and provide owners with an owner's manual insert clarifying which spare tire to use with the accessory road tires and with the 17" original tires. Owner notification letters were mailed February 7, 2022. Owners may contact GM customer service at 1-800-462-8782 or GMC customer service at 1-800-462-8782. GM's number for this recall is N212346510.
    For more information:
    Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
    NHTSA CAMPAIGN ID Number: 21V985000
    Potential Number of Units Affected: 626
    TIRES
    Feb 25, 2021
    Over cured tires may develop a break in the sidewall resulting in sudden air loss or a belt edge separation which could lead to a tread/belt loss. Either condition can cause a loss of vehicle control, increasing the risk of a crash.
    Summary:
    General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT4, XT5, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, Traverse, GMC Yukon, Yukon XL, 2018-2021 Chevrolet Express, GMC Savana, 2019-2020 Chevrolet Blazer, Silverado 1500, GMC Acadia, Sierra 1500, and certain Continental tires sold to the aftermarket for various model year 2018-2021 vehicles. The affected tires were cured for too long during production.
    What should you do:
    GM will notify owners, and dealers will inspect the tires, replacing them as necessary, free of charge. The recall began March 22, 2021. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N212329050.
    For more information:
    Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
    NHTSA CAMPAIGN ID Number: 21V115000
    Potential Number of Units Affected: 33838
    SEAT BELTS
    Dec 17, 2020
    If a seat-belt bracket is not secured, the seat belt may not properly restrain an occupant in the front-row center seat position, increasing the risk of injury in a crash.
    Summary:
    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. The seat belt brackets may not be secured to the seat frame in the front-row center seating position.
    What should you do:
    GM will notify owners, and dealers will inspect left-side and right-side front-row center seat-belt bracket attachments and reassemble it correctly as necessary, free of charge. The recall began January 26, 2021. Owners may contact GMC customer service at 1-800-462-8782, Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N202314670.
    For more information:
    Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
    NHTSA CAMPAIGN ID Number: 20V792000
    Potential Number of Units Affected: 624216
    TIRES
    Nov 05, 2020
    Overcured tires may experience a carcass break in the sidewall resulting in a sudden air loss or could develop a belt edge separation which could lead to partial or full tread/belt loss. Either condition increases the risk of a crash.
    Summary:
    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. The vehicles may have been manufactured with Continental tires that were overcured.
    What should you do:
    GM will notify owners, and dealers will inspect vehicles and replace tires that have DOT number and production mold number combinations identified by Continental, free of charge. The recall began December 17, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202319030.
    For more information:
    Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
    NHTSA CAMPAIGN ID Number: 20V684000
    Potential Number of Units Affected: 7516
    POWER TRAIN
    Oct 22, 2020
    If the driveshaft separates, there may be a loss of propulsion, increasing the risk of crash.
    Summary:
    General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 and 2020 Chevrolet Silverado 2500 trucks. One of the driveshaft joints may not have been properly welded, causing the driveshaft to separate while the vehicle is moving.
    What should you do:
    GM will notify owners, and dealers will replace the driveshaft, free of charge. The recall is expected to begin December 2020. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N202314870.
    For more information:
    Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
    NHTSA CAMPAIGN ID Number: 20V650000
    Potential Number of Units Affected: 42
    AIR BAGS
    Jul 30, 2020
    If the diffuser separates from the inflator during deployment, RRAB performance may be degraded, increasing the risk of injury in a crash.
    Summary:
    General Motors, LLC. (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5 and XT6, Chevrolet Blazer, Silverado 1500, 2500 and 3500 and Traverse and GMC Acadia and Sierra 1500, 2500 and 3500 vehicles. The diffuser component of the Roof-Rail Air Bag (RRAB) inflator may not have been properly crimped to the inflator and could separate from the inflator during air bag deployment.
    What should you do:
    GM will notify owners, and dealers will replace the suspect RRAB modules, free of charge. The recall began September 3, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for this recall is N202305380.
    For more information:
    Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
    NHTSA CAMPAIGN ID Number: 20V446000
    Potential Number of Units Affected: 769
    SERVICE BRAKES, HYDRAULIC
    Feb 27, 2020
    Broken caliper bolts can reduce brake performance or interfere with wheel rotation and increase the risk of a crash.
    Summary:
    General Motors LLC (GM) is recalling certain 2020 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles. The bolts used to attach the front and/or rear brake calipers may have not been heat treated and may break under load.
    What should you do:
    GM will notify owners, and dealers will replace the brake caliper bolts, free of charge. The recall began March 23, 2020. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-866-522-9559. GM's number for this recall is N202294420.
    For more information:
    Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
    NHTSA CAMPAIGN ID Number: 20V116000
    Potential Number of Units Affected: 20352
    ELECTRICAL SYSTEM
    Dec 12, 2019
    An intermittent electrical connection between the B+ battery cable and the alternator could cause the vehicle to stall, increasing the risk of a crash. The intermittent connection could also lead to electrical arcing, which could generate sufficient heat to damage surrounding material, increasing the risk of a fire.
    Summary:
    General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. The battery positive (B+) cable rings may have been manufactured with excessive glue, potentially causing an intermittent electrical connection between the B+ cable and alternator.
    What should you do:
    GM will notify owners, and dealers will inspect for the presence of glue or other contamination at the B+ cable attachment to the alternator and clean the connection and reattach the B+ cable connection, as necessary. If arcing has damaged the cable, nut, or alternator, the dealer will replace the damaged components. All services will be performed free of charge. GM issued owners an interim notification on February 4, 2020. GM issued second notice and the recall began March 9, 2019. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N192273510.
    For more information:
    Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
    NHTSA CAMPAIGN ID Number: 19V888000
    Potential Number of Units Affected: 350371
    FUEL SYSTEM, GASOLINE
    Nov 21, 2019
    Over-pressurization can crack the fuel pump and cause leaks, increasing the risk of a fire in the presence of an ignition source.
    Summary:
    General Motors LLC (GM) is recalling certain 2020 Cadillac Escalade, Escalade ESV, Chevrolet Camaro, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles. The fuel pump may be missing a pressure regulator, allowing for over-pressurization of the fuel system.
    What should you do:
    GM will notify owners, and dealers will replace the fuel pump, free of charge. The recall began December 18, 2019. Owners may contact Cadillac customer service at 1-800-333-4223, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-888-988-7267. GM's number for this recall is N192283991.
    For more information:
    Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
    NHTSA CAMPAIGN ID Number: 19V837000
    Potential Number of Units Affected: 502
    SEAT BELTS
    Nov 14, 2019
    A vehicle fire could result if materials ignite inside the vehicle.
    Summary:
    General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500, and 2020 Silverado 2500, Silverado 3500, Sierra 2500, and Sierra 3500 vehicles equipped with carpet floor covering. When the front seat belt pretensioners deploy, hot gas may vent through an opening in the pretensioner bracket, possibly igniting the carpet.
    What should you do:
    GM will notify owners, and dealers will close off the opening in the pretensioner bracket, free of charge. The recall began December 13, 2019. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N192270600.
    For more information:
    Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
    NHTSA CAMPAIGN ID Number: 19V814000
    Potential Number of Units Affected: 556399
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