Example carEmissions test for a 2018 GMC Sierra
Emissions test for the 2018 GMC Sierra: CarmaCars does not do this work itself. Request it and we arrange it with a trusted shop or connect you with one, and we can deliver a rental car to you while yours is in.
- Combined
- 11.8 to 13.9 L/100 km
- Body
- Standard Pickup Trucks
A rental while yours is in the shop
CarmaCars does not do this work; you keep driving while the shop has your car. We deliver a rental to you, by the day, at our usual rates.
The 2018 GMC Sierra for emissions test
- Body: standard pickup trucks (EPA size class).
2018 GMC Sierra: every figure
| Figure | Powertrain 1 | Powertrain 2 | Powertrain 3 | Powertrain 4 | Powertrain 5 | Powertrain 6 | Powertrain 7 | Powertrain 8 | Powertrain 9 | Powertrain 10 |
|---|---|---|---|---|---|---|---|---|---|---|
| Displacement | 5.3 L | 4.3 L | 4.3 L | 5.3 L | 5.3 L | 5.3 L | 5.3 L | 5.3 L | 6.2 L | 6.2 L |
| Cylinders | 8 | 6 | 6 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| MPG city (US) | 18 | 18 | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 15 |
| MPG highway (US) | 24 | 24 | 22 | 21 | 22 | 22 | 21 | 20 | 21 | 20 |
| MPG combined (US) | 20 | 20 | 19 | 18 | 18 | 18 | 18 | 17 | 17 | 17 |
| MPG combined (Imperial) (converted from the US figure) | 24 | 24 | 23 | 22 | 22 | 22 | 22 | 20 | 20 | 20 |
| Fuel cost a year (EPA) (EPA: 15,000 miles at its fuel prices) | US$3,350 | US$3,350 | US$3,550 | US$3,700 | US$3,683 | US$3,700 | US$3,783 | US$3,950 | US$4,850 | US$4,850 |
| Fuel cost for 20,000 km (at $1.55 a litre) | $3,658 | $3,690 | $3,876 | $4,030 | $4,030 | $4,062 | $4,092 | $4,248 | $4,796 | $4,866 |
Sources: fuel use, MPG, CO2, electric range, battery, charge time, luggage volume and the annual fuel cost are the US EPA's (fueleconomy.gov). Imperial MPG, litres, inches and pounds are converted from those figures. Figures no free source publishes for this car (power, torque, acceleration, top speed, fuel tank, towing) are left out.
What to check when buying the 2018 GMC Sierra
- NHTSA lists 12 recall campaigns for this model year. Ask the seller for proof each one was fixed; a dealer can check it by the VIN.
- Owners filed 371 complaints with NHTSA, most often about power train (138), engine (81) and service brakes (54). Have those parts checked before you buy.
| Campaign | Date | Component | Summary |
|---|---|---|---|
| 26V325000 | 2026-05-21 | air bags | 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. |
| 26V166000 | 2026-03-19 | air bags | 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... |
| 25V432000 | 2025-06-26 | air bags | 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... |
| 24V756000 | 2024-10-10 | air bags:side/window:curtain:inflator | 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. |
| 23V047000 | 2023-02-02 | fuel system, diesel:storage:tank assembly | 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. |
| 21V496000 | 2021-07-01 | equipment:electrical:engine block heater | 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... |
| 20V603000 | 2020-10-01 | service brakes, hydraulic:power assist:vacuum | 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. |
| 19V761000 | 2019-10-24 | service brakes | 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... |
| 19V645000 | 2019-09-06 | service brakes, hydraulic:power assist:vacuum | 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. |
| 19V328000 | 2019-04-25 | engine | 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... |
| 19V088000 | 2019-02-07 | fuel system, gasoline:storage:tank assembly | 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. |
| 17V567000 | 2017-09-14 | seat belts:front:retractor | 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... |
Source: NHTSA (US) recall campaigns and owner complaints for this model year.
Emissions test: how we help
For an emissions test on the 2018 GMC Sierra, a trusted shop does the work and CarmaCars arranges it, with a rental if you need one. Rules on emissions testing differ by province and state.
Before the shop sees your Sierra
Say whether the car is drivable; it changes how it gets to the shop. Bring the owner's manual or service records if you have them. Your owner's manual lists the maintenance schedule for the Sierra. The engine is the 5.3L 8-cylinder hybrid, with rear-wheel drive and an 8-speed automatic.
From request to repair
We tell you plainly if we do not know a shop for the job. We keep you posted until the car is booked in. You approve the shop's quote before any work.
No car? Rent one meanwhile
Rent by the day or the week, and stop when your car is back. Pick a car that suits your week from our fleet. We hand every car over in person, at your address or at our location.
What to ask
Ask whether the shop needs your keys, the wheel lock key or the spare. Ask whether the shop will check anything related while the car is there. Ask if the shop needs the car for a full day or only a few hours.
Between shop visits
Use the grade of fuel your owner's manual calls for. Wash the underside of the car in winter to clear road salt. Keep an emergency kit in the trunk in winter.
Questions first?
Send the car's details and the job, and we take the next step.
Request emissions test
Tell us when suits you. A person replies within one business day and arranges it with a trusted shop or recommends one; the shop sets its own price and time.
Rent a car while yours is in in Toronto
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