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2018 GMC Sierra

Hybrid Gas Pickup truck

20262025202420232022202120202019201820172016
Specs & fuel economyRecallsComplaintsCrash ratingsCompare
F
Safety Signal
35 / 100
FSafety Signal · 35 / 100
12Recalls · 3 critical
366Complaints · owner reports
5★Crash rating · NHTSA overall
20 mpgFuel economy · best combined

The 2018 GMC Sierra is sold in the U.S. as a hybrid and gas pickup truck with 14 EPA-rated configurations. The most efficient version, the Sierra 15 Hybrid 2WD, is EPA-rated at 20 mpg combined. NHTSA lists 12 recall campaigns for this model year, 3 rated critical, which gives it a Safety Signal grade of F. Owners have filed 366 complaints, most often about power train. NHTSA crash-tested it at 5 stars overall.

Specs & fuel economy (EPA)

ConfigurationPowertrainDriveEngine / motorCityHwyCombAnnual fuel*
Sierra 15 Hybrid 2WDHybridRWD5.3L 8-cyl + 86V Li-Ion182420$3,100
Sierra 15 Hybrid 4WDHybrid4WD5.3L 8-cyl + 86V Li-Ion162118$3,450
Sierra C15 2WDGasRWD4.3L 6-cyl182420$3,100
Sierra C15 2WDGasRWD5.3L 8-cyl162319$3,300
Sierra C15 2WDGasRWD5.3L 8-cyl162319$3,300
Sierra K15 4WDGas4WD4.3L 6-cyl172219$3,300
Sierra C15 2WDGasRWD5.3L 8-cyl162218$3,450
Sierra K15 4WDGas4WD5.3L 8-cyl162218$3,450
Sierra K15 4WDGas4WD5.3L 8-cyl162218$3,450
Sierra C15 2WDGasRWD6.2L 8-cyl152117$4,550
Sierra C15 Cab Chassis 2WDGasRWD5.3L 8-cyl152017$3,650
Sierra K15 4WDGas4WD6.2L 8-cyl152017$4,550
Sierra K15 4WDGas4WD5.3L 8-cyl152017$3,650
Sierra K15 Cab Chassis 4WDGas4WD5.3L 8-cyl151917$3,650

*EPA estimate at 15,000 miles/year and EPA reference fuel/electricity prices. Source: fueleconomy.gov vehicle records.

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Recalls (12)

Air Bags

high
4,315 vehicles

Problem: General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, GMC Sierra 1500, 2019 Chevrolet Silverado 2500, Silverado 3500, GMC Sierra 2500, and Sierra 3500 vehicles. The left-side or right-side roof rail air bag (RRAB) inflator end cap may detach from the inflator or the inflator sidewall may rupture.

Risk: A detached end cap or inflator rupture can allow compressed gas to escape and project the end cap or fragments of the inflator into the vehicle, increasing the risk of injury.

Fix: Dealers will replace both RRAB modules, free of charge. Owner notification letters were mailed June 24, 2026. Owners may contact GMC customer service at 1-888-988-7267 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N262557310. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on May 21, 2026. This recall expands previous NHTSA recall number 26V166.

NHTSA campaign 26V325000 · reported May 21, 2026 · General Motors, LLC

Air Bags

high
2,819 vehicles

Problem: General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, GMC Sierra 1500, 2019 Chevrolet Silverado 2500, Silverado 3500, GMC Sierra 2500, and Sierra 3500 Crew Cab vehicles. The left or right-side roof rail air bag (RRAB) inflator end cap may detach from the inflator or the inflator sidewall may rupture.

Risk: A detached end cap or inflator rupture can allow compressed gas to escape and project the end cap or fragments of the inflator into the vehicle, increasing the risk of injury.

Fix: Dealers will replace the left and right-side RRAB modules, free of charge. Owner notification letters were mailed April 16, 2026. Owners may contact GMC customer service at 1-888-988-7267 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N262549710. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on March 19, 2026.

NHTSA campaign 26V166000 · reported Mar 19, 2026 · General Motors, LLC

Air Bags

high
1,658 vehicles

Problem: General Motors (GM) is recalling certain 2018 GMC Sierra 1500, 2019 Sierra 2500, 3500, Chevrolet Silverado 3500, and Chevrolet Silverado 2500 and 2018 Chevrolet Silverado 1500 Crew Cab vehicles. The left or right-side roof-rail air bag (RRAB) inflator end cap may detach from the inflator or the inflator sidewall may rupture.

Risk: A detached end cap or inflator rupture can allow compressed gas to escape and project the end cap or fragments of the inflator into the vehicle, increases 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 July 23, 2025. Owners may contact GMC customer service at 1-888-988-7267 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N252513060.

NHTSA campaign 25V432000 · reported Jun 26, 2025 · General Motors, LLC

Air Bags

high
2,061 vehicles

Problem: 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.

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.

NHTSA campaign 24V756000 · reported Oct 10, 2024 · General Motors, LLC

Fuel System, Diesel

high
22,132 vehicles

Problem: 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.

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

NHTSA campaign 23V047000 · reported Feb 2, 2023 · General Motors, LLC

Equipment

critical
338,020 vehicles

Problem: 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.

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. In

NHTSA campaign 21V496000 · reported Jul 1, 2021 · General Motors, LLC

Service Brakes, Hydraulic

high
14,620 vehicles

Problem: General Motors LLC (GM) is recalling certain 2018 Cadillac Escalade, Chevrolet Silverado 1500 and Tahoe, GMC Sierra 1500 and Yukon vehicles equipped with either a 5.3L or 6.2L V8 engine. The output of the mechanical vacuum pump can decrease over time, decreasing the amount of vacuum/power brake assist.

Risk: A decrease in brake assist can increase the brake pedal effort and distance required to stop the vehicle, increasing the risk of a crash.

Fix: GM will notify owners, and dealers will reprogram the Electronic Brake Control Module, free of charge. The recall began November 11, 2020. Owners may contact GM customer service at 1-866-522-9559, Cadillac customer service at 1-800-458-8006 or Chevrolet customer service at 1-800-630-2438. GM's number for this recall is N202300860.

NHTSA campaign 20V603000 · reported Oct 1, 2020 · General Motors LLC

Electronic Stability Control (Esc)

high
652,967 vehicles

Problem: General Motors LLC (GM) is recalling certain 2015-2020 Chevrolet Suburban, Tahoe, and GMC Yukon, and 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 5.3-liter engine, a 3.08-ratio rear axle and four-wheel drive. If a wheel-speed sensor fails, while the vehicle is traveling between 41 and 60 mph in four-wheel or automatic mode, the Electronic-Brake Control Module (EBCM) software may activate the driveline-protection system.

Risk: Unintended activation of the driveline-protection system will cause unintended braking on the wheel on the opposite side of the failed sensor, causing the vehicle to pull to one side unexpectedly, increasing the risk of a crash.

Fix: GM will notify owners, and dealers will reprogram the EBCM, free of charge. The recall began December 11, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438 or GMC customer service at 1-800-462-8782. GM's number for this recall is N192261050.

NHTSA campaign 19V761000 · reported Oct 24, 2019 · General Motors LLC

Service Brakes, Hydraulic

high
3,456,719 vehicles

Problem: General Motors LLC (GM) is recalling certain 2015-2017 Cadillac Escalade, 2014-2018 Chevrolet Silverado, GMC Sierra, 2015-2018 Chevrolet Suburban, Tahoe, GMC Yukon vehicles. The amount of vacuum created by the vacuum pump may decrease over time.

Risk: As the vacuum level drops, the brake assist decreases, increasing braking effort, extending the distance required to stop the vehicle, thereby increasing the risk of a crash.

Fix: GM will notify owners, and dealers will reprogram the Electronic Brake Control Module, free of charge. The recall began October 8, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-458-8006 or GMC customer service at 1-800-462-8782. GM's number for this recall is N192268490.

NHTSA campaign 19V645000 · reported Sep 6, 2019 · General Motors LLC

Engine

critical
318,374 vehicles

Problem: 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.

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.

NHTSA campaign 19V328000 · reported Apr 25, 2019 · General Motors LLC

Fuel System, Gasoline

critical
18,574 vehicles

Problem: General Motors, LLC (GM) is recalling certain 2016-2018 GMC Sierra 3500 and Chevrolet Silverado 3500 trucks equipped with gasoline engines and dual fuel tanks. The fuel-level sensor in the front tank may stick in a low-level position, allowing the rear tank to overfill the front tank.

Risk: If the front tank overfills, the excess pressure may cause the front tank to expand and contact the driveshaft, possibly resulting in a hole in the tank. The hole will leak fuel, which in the presence of an ignition source, can increase the risk of a fire.

Fix: GM has notified owners, and dealers will replace the rear-tank fuel-pump module, inspect the front tank and, if necessary, replace the front tank, free of charge. The recall began July 30, 2019. GM's number for this recall is N182204190.

NHTSA campaign 19V088000 · reported Feb 7, 2019 · General Motors LLC

Seat Belts

high
38,048 vehicles

Problem: 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."

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.

NHTSA campaign 17V567000 · reported Sep 14, 2017 · General Motors LLC

Owner complaints

366 complaints filed

10 involved a crash, 3 a fire, 6 injuries, 0 deaths reported by owners.

Filed by year — 2018: 24 · 2019: 40 · 2020: 43 · 2021: 32 · 2022: 53 · 2023: 35 · 2024: 44 · 2025: 67 · 2026: 28

Most-cited components

  • Power Train — 129
  • Engine — 79
  • Electrical System — 52
  • Service Brakes — 50
  • Steering — 36
“The contact owns a 2018 GMC Sierra 3500. The contact stated while driving at various speeds, several unknown warning lights illuminated on the instrument panel. The contact pulled over to the shoulder of the roadway to restart the vehicle. After the vehicle was restarted, the vehicle hesitated to stop while depressing …”Jul 29, 2024 · Electrical System · NHTSA owner report
“The contact owns 2018 GMC Sierra 3500. The contacted stated that while the vehicle was parked in the driveway, the vehicle started and the defrost system was activated and the contact's daughter entered the vehicle and saw that it was smoking and informed the contact. When the contact arrived at the vehicle, the rear w…”Feb 14, 2024 · Visibility · NHTSA owner report
“17Jan2023. 2018 GMC Sierra 3500HD Denali. Northbound on I37 near Three Rivers, TX. Speed approx 75 mph. Temp approx 55F. Wx conditions, 1/2 mile vis in fog. Traffic, zero vehicles ahead, one vehicle approx 100 yards behind. Time approx 0815. No overpasses encountered. Cruise control engaged. My son and I were talking w…”Feb 3, 2023 · Visibility/Wiper · NHTSA owner report

Complaint counts are raw owner reports to NHTSA, not verified defects, and scale with how many were sold. Use them to spot patterns, not to rank.

Crash ratings

ConfigurationOverallFrontalSideRolloverRollover risk
HYBRID PU/CC RWD★★★★★★★★★★★★★★★★★★★☆18%
PU/CC 4WD★★★★★★★★★★★★★★★★★★★☆17%
PU/CC RWD★★★★★★★★★★★★★★★★★★★☆18%
PU/EC 4WD★★★★★★★★★★★★★★★★★★★☆18%
PU/EC RWD★★★★★★★★★★★★★★★★★★★☆17%
PU/RC 4WD★★★★★★★★★★★★★★★★★★★☆17%
PU/RC RWD★★★★★★★★★★★★★★★★★★★☆18%
PU/CC 4WD★★★★☆★★★★☆★★★★★★★★☆☆20%
PU/CC RWD★★★★☆★★★★☆★★★★★★★★☆☆21%
PU/EC 4WD★★★★☆★★★★☆★★★★★★★★☆☆20%
PU/EC RWD★★★★☆★★★★☆★★★★★★★★☆☆20%
PU/RC 4WD★★★★☆★★★★☆★★★★★★★★☆☆20%
PU/RC RWD★★★★☆★★★★☆★★★★★★★★☆☆20%

NHTSA New Car Assessment Program.

Compare the 2018 Sierra with

2018 Chevrolet Silverado2018 Ram 15002018 Toyota Tacoma2018 Toyota Tundra2018 Chevrolet Colorado2018 Honda Ridgeline

Other Sierra model years

F

2026 Sierra

6 recalls · 120 complaints

D

2025 Sierra

4 recalls · 161 complaints

F

2024 Sierra

8 recalls · 501 complaints

C

2023 Sierra

4 recalls · 517 complaints

F

2022 Sierra

8 recalls · 646 complaints

F

2021 Sierra

10 recalls · 624 complaints

F

2020 Sierra

16 recalls · 592 complaints

F

2019 Sierra

17 recalls · 705 complaints

F

2017 Sierra

10 recalls · 477 complaints

F

2016 Sierra

12 recalls · 454 complaints

Sources & method

Safety Signal starts every model-year at 100 and subtracts points per open NHTSA recall campaign by severity: critical 15 (fire risk, park-outside or do-not-drive advisories), high 8 (brakes, steering, airbags, loss of drive power, structure, battery), moderate 6, minor 3 (software, labels, lighting fixed by an update). Floor 35. A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, otherwise F. Complaint counts and NHTSA crash ratings are shown separately and are not blended into the grade.

EPA figures come from fueleconomy.gov vehicle records (ids 38944, 38948, 38945, 38986, 38987, 38949, 38985, 39360, 39404, 38988, 38996, 38991). Recalls, complaints, investigations and crash ratings come from NHTSA's public flat files, refreshed weekly.

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