# GMC Sierra specs and mpg by year

- **Latest year:** 2026
- **MPG (combined):** 15-25
- **Drive:** 4WD, RWD
- **Years covered:** 2015-2026

## Quick answer

The 2026 GMC Sierra is a midsize/large pickup rated at 15-25 mpg combined. Engines: 2.7L 4-cyl turbo; 5.3L V8; 3.0L V6 turbo diesel; 6.2L V8; Electric.

## Every 2026 GMC Sierra version

| Version | Engine | Drive | Transmission | City/Hwy | Combined | Range | 240V charge | Fuel cost / year | CO2 |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| SIERRA EV Ext Range (11kW Charger) | Electric | 4WD | Single-speed | 75/61 MPGe | 68 MPGe | 410 mi | 18.6 h | $1,100 | 0 g/mi |
| SIERRA EV Std Range (11kW Charger) | Electric | 4WD | Single-speed | 74/60 MPGe | 67 MPGe | 283 mi | 13.3 h | $1,150 | 0 g/mi |
| SIERRA EV Ext Range (19kW Charger) | Electric | 4WD | Single-speed | 69/59 MPGe | 64 MPGe | 385 mi | 11.5 h | $1,200 | 0 g/mi |
| Sierra 2WD | 3.0L V6 turbo diesel | RWD | Automatic | 23/28 | 25 mpg | -- | -- | $3,850 | 402 g/mi |
| Sierra 4WD with Sport Mode | 3.0L V6 turbo diesel | 4WD | Automatic | 22/26 | 24 mpg | -- | -- | $4,000 | 428 g/mi |
| Sierra Mud Terrain Tires with Sport Mode | 3.0L V6 turbo diesel | 4WD | Automatic | 21/24 | 23 mpg | -- | -- | $4,150 | 451 g/mi |
| Sierra 2WD | 2.7L 4-cyl turbo | RWD | Automatic | 18/21 | 20 mpg | -- | -- | $3,350 | 464 g/mi |
| Sierra 2WD with Sport Mode | 2.7L 4-cyl turbo | RWD | Automatic | 17/21 | 19 mpg | -- | -- | $3,550 | 472 g/mi |
| Sierra 4WD AT4X with Sport Mode | 3.0L V6 turbo diesel | 4WD | Automatic | 19/20 | 19 mpg | -- | -- | $5,050 | 524 g/mi |
| Sierra 2WD with Sport Mode | 5.3L V8 | RWD | Automatic | 16/21 | 18 mpg | -- | -- | $3,700 | 495 g/mi |
| Sierra 4WD | 2.7L 4-cyl turbo | 4WD | Automatic | 17/20 | 18 mpg | -- | -- | $3,700 | 491 g/mi |
| Sierra 2WD | 5.3L V8 | RWD | Automatic | 16/20 | 17 mpg | -- | -- | $3,950 | 514 g/mi |
| Sierra Mud Terrain Tires 4WD | 2.7L 4-cyl turbo | 4WD | Automatic | 16/17 | 17 mpg | -- | -- | $3,950 | 536 g/mi |
| Sierra 4WD with Sport Mode | 2.7L 4-cyl turbo | 4WD | Automatic | 17/18 | 17 mpg | -- | -- | $3,950 | 513 g/mi |
| Sierra 4WD FFV | 5.3L V8 | 4WD | Automatic | 15/19 | 17 mpg | -- | -- | $3,950 | 524 g/mi |
| Sierra Mud Terrain Tires 4WD FFV | 5.3L V8 | 4WD | Automatic | 15/19 | 17 mpg | -- | -- | $3,950 | 524 g/mi |
| Sierra 4WD with Sport Mode | 5.3L V8 | 4WD | Automatic | 15/19 | 17 mpg | -- | -- | $3,950 | 522 g/mi |
| Sierra 4WD | 6.2L V8 | 4WD | Automatic | 15/19 | 16 mpg | -- | -- | $5,150 | 539 g/mi |
| Sierra Mud Terrain Tires 4WD (Sport Mode) | 5.3L V8 | 4WD | Automatic | 15/18 | 16 mpg | -- | -- | $4,200 | 561 g/mi |
| Sierra 4WD | 5.3L V8 | 4WD | Automatic | 15/18 | 16 mpg | -- | -- | $4,200 | 550 g/mi |
| Sierra Mud Terrain Tires 4WD | 5.3L V8 | 4WD | Automatic | 14/17 | 16 mpg | -- | -- | $4,200 | 567 g/mi |
| Sierra Cab Chassis 2WD | 5.3L V8 | RWD | Automatic | 15/18 | 16 mpg | -- | -- | $4,200 | 551 g/mi |
| Sierra Mud Terrain Tires 4WD | 6.2L V8 | 4WD | Automatic | 14/17 | 15 mpg | -- | -- | $5,500 | 593 g/mi |
| Sierra 4WD AT4X | 6.2L V8 | 4WD | Automatic | 14/16 | 15 mpg | -- | -- | $5,500 | 601 g/mi |
| Sierra Cab Chassis 4WD | 5.3L V8 | 4WD | Automatic | 14/16 | 15 mpg | -- | -- | $4,450 | 592 g/mi |

Each row is a version the EPA tested. Fuel cost assumes 15,000 miles a year (55% city) at national average prices; CO2 is tailpipe emissions.

## GMC Sierra specs by year

| Year | Engines | Transmission | Drive | MPG (combined) | MPGe | EV range |
| --- | --- | --- | --- | --- | --- | --- |
| 2026 | 2.7L 4-cyl turbo; 5.3L V8; 3.0L V6 turbo diesel; 6.2L V8; Electric | Automatic, Single-speed | 4WD, RWD | 15-25 | 64-68 | 410 mi |
| 2025 | 3.0L V6 turbo diesel; 2.7L 4-cyl turbo; 5.3L V8; 6.2L V8; Electric | Automatic, Single-speed | 4WD, RWD | 15-26 | 64 | 390 mi |
| 2024 | 5.3L V8; 3.0L V6 turbo diesel; 6.2L V8; 2.7L 4-cyl turbo | Automatic | 4WD, RWD | 15-25 | -- | -- |
| 2023 | 5.3L V8; 3.0L V6 turbo diesel; 2.7L 4-cyl turbo; 6.2L V8 | Automatic | 4WD, RWD | 15-26 | -- | -- |
| 2022 | 3.0L V6 turbo diesel; 5.3L V8; 2.7L 4-cyl turbo; 6.2L V8 | Automatic | 4WD, RWD | 14-26 | -- | -- |
| 2021 | 5.3L V8; 3.0L V6 turbo diesel; 6.2L V8; 4.3L V6; 2.7L 4-cyl turbo | Automatic | 4WD, RWD | 14-26 | -- | -- |
| 2020 | 4.3L V6; 5.3L V8; 2.7L 4-cyl turbo; 3.0L V6 turbo diesel; 6.2L V8 | Automatic | 4WD, RWD | 15-26 | -- | -- |
| 2019 | 5.3L V8; 6.2L V8; 2.7L 4-cyl turbo; 4.3L V6 | Automatic | 4WD, RWD | 15-21 | -- | -- |
| 2018 | 5.3L V8 hybrid; 4.3L V6; 5.3L V8; 6.2L V8 | Automatic | 4WD, RWD | 17-20 | -- | -- |
| 2017 | 5.3L V8 hybrid; 6.2L V8; 5.3L V8; 4.3L V6 | Automatic | 4WD, RWD | 17-20 | -- | -- |
| 2016 | 5.3L V8; 4.3L V6; 6.2L V8; 5.3L V8 hybrid | Automatic | 4WD, RWD | 17-20 | -- | -- |
| 2015 | 5.3L V8; 4.3L V6; 6.2L V8 | Automatic | 4WD, RWD | 17-20 | -- | -- |

EPA combined ratings. MPGe is the EPA efficiency measure for electric cars. Ranges cover every engine and drivetrain EPA tested for that year.

## How has the Sierra changed over the years?

- **2026:** combined mpg went from 15-26 to 15-25; maximum range went from 390 to 410 miles.
- **2025:** added Electric.
- **2024:** combined mpg went from 15-26 to 15-25.
- **2023:** combined mpg went from 14-26 to 15-26.
- **2022:** dropped 4.3L V6.
- **2021:** combined mpg went from 15-26 to 14-26.
- **2020:** added 3.0L V6 turbo diesel.
- **2019:** added 2.7L 4-cyl turbo; dropped 5.3L V8 hybrid.
- **2016:** added 5.3L V8 hybrid.

## What does it cost to run a Sierra?

The EPA puts the 2026 GMC Sierra's fuel cost at **$1,100-$5,500 a year**, against about $3,286 for other current midsize/large pickup: about average. Over five years at 15,000 miles a year that is about $16,500 in fuel.

## Sierra vs rivals

| Model | Powertrains | Fuel economy | Range | Fuel cost / year |
| --- | --- | --- | --- | --- |
| [Chevrolet Silverado](/vehicles/chevrolet-silverado) | Diesel, Electric, Gas | 15-25 mpg | 493 mi | $1,100-$5,500 |
| [Ford F-150](/vehicles/ford-f-150) | Gas, Hybrid | 12-24 mpg | -- | $2,800-$6,850 |
| [Ford Ranger](/vehicles/ford-ranger) | Gas | 17-23 mpg | -- | $2,900-$3,950 |
| [Toyota Tundra](/vehicles/toyota-tundra) | Gas, Hybrid | 19-22 mpg | -- | $3,050-$4,350 |
| [Ram 1500](/vehicles/ram-1500) | Gas, Hybrid | 12-22 mpg | -- | $3,050-$6,850 |
| [Nissan Frontier](/vehicles/nissan-frontier) | Gas | 18-21 mpg | -- | $3,200-$3,700 |
| [Chevrolet Colorado](/vehicles/chevrolet-colorado) | Gas | 16-21 mpg | -- | $3,200-$4,200 |
| [Honda Ridgeline](/vehicles/honda-ridgeline) | Gas | 20-21 mpg | -- | $3,200-$3,350 |

Other current midsize/large pickup from other makes, most efficient first.

## GMC Sierra problems owners report most

| System (NHTSA category) | Complaints |
| --- | --- |
| Engine | 1872 |
| Power Train | 1112 |
| Electrical System | 693 |
| Service Brakes | 682 |
| Structure | 328 |
| Steering | 306 |
| Fuel/Propulsion System | 227 |
| Engine And Engine Cooling | 196 |

From 5,041 complaints filed with NHTSA for 2015-2026 models. Most-complained-about model year: **2015**.

## Guides for common GMC Sierra problems

- **Engine** (1,872 complaints): [Why is my car idling rough](/symptoms/rough-idle) - [Why is my engine knocking](/symptoms/engine-knocking-noise) - [Why is my car leaking oil](/symptoms/car-leaking-oil) - [engine replacement cost](/cost/engine-replacement) - [timing chain replacement cost](/cost/timing-chain-replacement) - [valve cover gasket replacement cost](/cost/valve-cover-gasket-replacement)
- **Transmission and drivetrain** (1,112 complaints): [Why is my transmission slipping](/symptoms/transmission-slipping) - [Why won't my car go into gear](/symptoms/car-wont-go-into-gear) - [Why does my car jerk when I accelerate](/symptoms/car-jerks-when-accelerating) - [transmission replacement cost](/cost/transmission-replacement) - [transmission fluid change cost](/cost/transmission-fluid-change) - [clutch replacement cost](/cost/clutch-replacement)
- **Electrical** (693 complaints): [Why does my car battery keep dying](/symptoms/car-battery-keeps-dying) - [Why are my headlights flickering](/symptoms/headlights-flickering) - [Why won't my car start](/symptoms/car-wont-start) - [alternator replacement cost](/cost/alternator-replacement) - [car battery replacement cost](/cost/car-battery-replacement) - [starter replacement cost](/cost/starter-replacement)
- **Brake** (682 complaints): [Why are my brakes squeaking](/symptoms/squeaky-brakes) - [Why do my brakes make a grinding noise](/symptoms/brake-grinding-noise) - [Why does my brake pedal go to the floor](/symptoms/brake-pedal-goes-to-floor) - [brake pad replacement cost](/cost/brake-pad-replacement) - [brake rotor replacement cost](/cost/brake-rotor-replacement) - [brake caliper replacement cost](/cost/brake-caliper-replacement)
- **Steering** (306 complaints): [Why is my steering wheel hard to turn](/symptoms/steering-wheel-hard-to-turn) - [Why does my car pull to one side](/symptoms/car-pulls-to-one-side) - [Why does my steering wheel shake at high speeds](/symptoms/steering-wheel-shakes-at-high-speed) - [rack and pinion replacement cost](/cost/rack-and-pinion-replacement) - [power steering pump replacement cost](/cost/power-steering-pump-replacement) - [tie rod replacement cost](/cost/tie-rod-replacement)

## GMC Sierra warning lights

- [Sierra: Check engine light](/warning-lights/check-engine/gmc-sierra): 540 complaints
- [Sierra: Power steering warning light](/warning-lights/power-steering/gmc-sierra): 212 complaints
- [Sierra: Brake warning light](/warning-lights/brake/gmc-sierra): 206 complaints
- [Sierra: Traction control light](/warning-lights/traction-control/gmc-sierra): 180 complaints
- [Sierra: Coolant temperature warning light](/warning-lights/coolant-temperature/gmc-sierra): 58 complaints
- [Sierra: Oil pressure warning light](/warning-lights/oil-pressure/gmc-sierra): 57 complaints
- [Sierra: ABS warning light](/warning-lights/abs/gmc-sierra): 37 complaints
- [Sierra: Airbag (SRS) warning light](/warning-lights/airbag/gmc-sierra): 18 complaints

## GMC Sierra recalls (50)

| Campaign | Model years | Component | Reported |
| --- | --- | --- | --- |
| [26V611000](https://www.nhtsa.gov/recalls?nhtsaId=26V611000) | 2016-2017 | Air Bags: Side/Window | 2026-09-24 |
| [26V325000](https://www.nhtsa.gov/recalls?nhtsaId=26V325000) | 2018 | Air Bags | 2026-05-21 |
| [26V289000](https://www.nhtsa.gov/recalls?nhtsaId=26V289000) | 2026 | Power Train: Transfer Case (4-Wheel Drive) | 2026-05-07 |
| [26V166000](https://www.nhtsa.gov/recalls?nhtsaId=26V166000) | 2018 | Air Bags | 2026-03-19 |
| [26V114000](https://www.nhtsa.gov/recalls?nhtsaId=26V114000) | 2026 | Equipment: Other | 2026-02-26 |
| [26V083000](https://www.nhtsa.gov/recalls?nhtsaId=26V083000) | 2020-2022 | Power Train: Automatic Transmission | 2026-02-13 |
| [25V876000](https://www.nhtsa.gov/recalls?nhtsaId=25V876000) | 2025 | Equipment Adaptive/Mobility: Wheelchair Restraints/Securement | 2025-12-18 |
| [25V432000](https://www.nhtsa.gov/recalls?nhtsaId=25V432000) | 2018 | Air Bags | 2025-06-26 |
| [25V274000](https://www.nhtsa.gov/recalls?nhtsaId=25V274000) | 2021-2024 | Engine And Engine Cooling: Engine | 2025-04-24 |
| [25V060000](https://www.nhtsa.gov/recalls?nhtsaId=25V060000) | 2022 | Structure: Body | 2025-02-06 |
| [24V797000](https://www.nhtsa.gov/recalls?nhtsaId=24V797000) | 2020-2022 | Power Train: Automatic Transmission | 2024-10-24 |
| [24V756000](https://www.nhtsa.gov/recalls?nhtsaId=24V756000) | 2018 | Air Bags: Side/Window | 2024-10-10 |
| [24V674000](https://www.nhtsa.gov/recalls?nhtsaId=24V674000) | 2023 | Service Brakes, Hydraulic: Brake Fluid Low Warning | 2024-09-12 |
| [22V903000](https://www.nhtsa.gov/recalls?nhtsaId=22V903000) | 2022-2023 | Exterior Lighting: Lighting Control Module | 2022-12-08 |
| [22V463000](https://www.nhtsa.gov/recalls?nhtsaId=22V463000) | 2022 | Exterior Lighting: Brake Lights | 2022-06-30 |
| [21V985000](https://www.nhtsa.gov/recalls?nhtsaId=21V985000) | 2019-2021 | Tires: Temporary/Emergency Spare Tire | 2021-12-16 |
| [21V504000](https://www.nhtsa.gov/recalls?nhtsaId=21V504000) | 2015-2016 | Air Bags: Side/Window | 2021-07-01 |
| [21V423000](https://www.nhtsa.gov/recalls?nhtsaId=21V423000) | 2019 | Tires | 2021-06-03 |
| [21V245000](https://www.nhtsa.gov/recalls?nhtsaId=21V245000) | 2015 | Seat Belts: Front | 2021-04-08 |
| [21V115000](https://www.nhtsa.gov/recalls?nhtsaId=21V115000) | 2019-2020 | Tires | 2021-02-25 |
| [20V811000](https://www.nhtsa.gov/recalls?nhtsaId=20V811000) | 2021 | Seat Belts | 2020-12-23 |
| [20V792000](https://www.nhtsa.gov/recalls?nhtsaId=20V792000) | 2019-2021 | Seat Belts | 2020-12-17 |
| [20V736000](https://www.nhtsa.gov/recalls?nhtsaId=20V736000) | 2015-2016 | Air Bags: Side/Window | 2020-11-25 |
| [20V684000](https://www.nhtsa.gov/recalls?nhtsaId=20V684000) | 2020-2021 | Tires | 2020-11-05 |
| [20V650000](https://www.nhtsa.gov/recalls?nhtsaId=20V650000) | 2019-2020 | Power Train: Driveline | 2020-10-22 |

Showing the 25 most recent of 50. Recall repairs are free at any GMC dealer. Check your VIN at [nhtsa.gov/recalls](https://www.nhtsa.gov/recalls). Data as of 2026-11-04.

## Frequently asked questions

### What mpg does the 2026 GMC Sierra get?

The 2026 GMC Sierra is EPA-rated at 15-25 mpg combined, depending on engine and drivetrain. Real-world mileage varies with speed, climate and load.

### What is the range of the 2026 GMC Sierra?

The 2026 GMC Sierra has an EPA-estimated range of up to 410 miles on a full charge, with an efficiency rating of 64-68 MPGe combined. Cold weather and highway speed reduce range.

### What engine does the 2026 GMC Sierra have?

The 2026 GMC Sierra comes with: 2.7L 4-cyl turbo; 5.3L V8; 3.0L V6 turbo diesel; 6.2L V8; Electric. It uses automatic, single-speed transmissions and is offered with 4WD and RWD.

### Is there a hybrid GMC Sierra?

Yes. The GMC Sierra has been offered as a hybrid in some model years; the table above shows which.

### Which GMC Sierra year gets the best gas mileage?

In the EPA data, the 2025 GMC Sierra has the highest combined rating, up to 26 mpg. Ratings for the same model can change between years when engines or test procedures change.

### How much does it cost to fuel a 2026 GMC Sierra for a year?

About $1,100-$5,500 a year, using the EPA's assumptions of 15,000 miles (55% city, 45% highway) at national average fuel prices. Your cost depends on your local prices, mileage and driving style.

### What is the city and highway mpg of the 2026 GMC Sierra?

The most efficient 2026 version, the Sierra 2WD, is rated 23 mpg city and 28 mpg highway (25 combined). Other engines and drivetrains are rated lower; the versions table above lists each one.

### How much CO2 does the 2026 GMC Sierra emit?

EPA rates its tailpipe CO2 at 402-601 grams per mile depending on version. Lower is better; the cleanest gas cars sit under 250 g/mi and electric cars have none at the tailpipe.

### Does the 2026 GMC Sierra come with all-wheel drive?

Yes. The 2026 GMC Sierra is offered with 4WD and RWD. All- or four-wheel drive usually costs 1-3 mpg compared with the two-wheel-drive version of the same engine, as the versions table shows.

### Is the GMC Sierra cheap to run compared with other midsize/large pickups?

About average: its EPA annual fuel cost of $1,100-$5,500 compares with about $3,286 for other current midsize/large pickup models. Fuel is only part of running costs; insurance, tires and repairs also differ.

### How many recalls does the GMC Sierra have?

NHTSA lists 50 recalls for 2015-2026 GMC Sierra models as of 2026-11-04, the latest reported 2026-09-24 (26V611000). Recall work is free; enter your VIN at nhtsa.gov/recalls to see which apply to your car.

### What is the most common problem with the GMC Sierra?

In NHTSA owner complaints the most-reported category is engine, followed by power train. The 2015 model year has the most complaints (818), partly because complaint counts follow sales volume.

## Sources

- [fueleconomy.gov (US DOE and EPA)](https://www.fueleconomy.gov/)
- [NHTSA: Vehicle safety complaints and recalls (api.nhtsa.gov)](https://www.nhtsa.gov/nhtsa-datasets-and-apis)

## All GMC trucks

- [GMC Canyon](https://diagxcar.com/vehicles/gmc-canyon)

## More GMC models

- [GMC Acadia](https://diagxcar.com/vehicles/gmc-acadia)
- [GMC Terrain](https://diagxcar.com/vehicles/gmc-terrain)
- [GMC Yukon](https://diagxcar.com/vehicles/gmc-yukon)

## Other midsize/large pickups

- [Honda Ridgeline](https://diagxcar.com/vehicles/honda-ridgeline)
- [Jeep Gladiator](https://diagxcar.com/vehicles/jeep-gladiator)
- [Nissan Frontier](https://diagxcar.com/vehicles/nissan-frontier)
- [Nissan Titan](https://diagxcar.com/vehicles/nissan-titan)
- [Ram 1500](https://diagxcar.com/vehicles/ram-1500)
- [Rivian R1T](https://diagxcar.com/vehicles/rivian-r1t)
- [Toyota Tundra](https://diagxcar.com/vehicles/toyota-tundra)
- [Chevrolet Colorado](https://diagxcar.com/vehicles/chevrolet-colorado)

## Compared with

- [Chevrolet Silverado](https://diagxcar.com/vehicles/chevrolet-silverado)
- [Ford F-150](https://diagxcar.com/vehicles/ford-f-150)
- [Ford Ranger](https://diagxcar.com/vehicles/ford-ranger)

## Car care

- [How long do tires last?](https://diagxcar.com/how-long/tires)
- [How often to change oil](https://diagxcar.com/how-often/change-oil)
- [Tire size calculator](https://diagxcar.com/tools/tire-size-calculator)

---

Source page: https://diagxcar.com/vehicles/gmc-sierra
Updated: 2026-11-03
General information, not a substitute for a qualified mechanic.