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GMC Sierra
2023 · gas, truck
7 measured figures
7 of the 9 figures this market publishes for a car like this one are measured for this car. This market publishes no overall score, so there is no share of a composite weight to measure confidence against; figures_measured says how many of this market's figures the row carries, and contributing_publishers says who measured them
Measured figures
Fuel economy19.6 mpg (US gallons)Measured by NRCan · configuration: Sierra · also 12 L/100 km
Tailpipe CO₂281 g/kmMeasured by NRCan · CO₂ basis: tailpipe_rated · configuration: Sierra · also 452 g/mile
HorsepowerFree with an accountMeasured for this car, with its publisher and basis
EPA test weightFree with an accountMeasured for this car, with its publisher and basis
WarrantyFree with an accountMeasured for this car, with its publisher and basis
Recall campaignsFree with an accountMeasured for this car, with its publisher and basis
Complaints per 10,000 builtFree with an accountMeasured for this car, with its publisher and basis
5 more measured figures for this car — Horsepower, EPA test weight, Warranty, Recall campaigns, Complaints per 10,000 built — each with the publisher that measured it and the basis it is on. Free to read with an account.
Figures this car does not carry
Fuel economy (MPGe)Not published for this carFuel economy (MPGe) is published for electric and hydrogen cars, whose economy is published as MPGe: energy converted at 33.7 kWh per gallon, not fuel burned; this car is not one of them, so the figure is not the same quantity for it
Tailpipe CO₂ (charge-weighted)Not published for this carthis car's CO₂ is published as the tailpipe rating for the car driven as rated on the test cycle (281 g/km), not as a composite weighted across electric and fuel-burning miles, so it is not the quantity this list orders. It is published as Tailpipe CO₂
Engine horsepowerNot published for this carNot published for this car. The record's own reason is free to read with an account.
Kerb weightNot published for this carNot published for this car. The record's own reason is free to read with an account.
NHTSA overall ratingNot published for this carNot published for this car. The record's own reason is free to read with an account.
PriceNot published for this carNot published for this car. The record's own reason is free to read with an account.
5-Year Running Costs
| Fuel | US$11,419 |
| Insurance | US$6,880 (modelled) |
| Maintenance | US$5,200 (class estimate) |
| Repairs | US$8,000 (modelled) |
| Depreciation | not estimated — we hold no purchase price for this car, and it is not assumed. |
| Total | not estimated — a component above is unknown or modelled |
Running costs only — the purchase price is not included. The five-year running cost is an ESTIMATE, not a measurement of this car: only its fuel half is computed from the car's own measured consumption and a dated pump price (see fuel_price_source and fuel_price_as_of in the market's own figures); insurance, maintenance and repairs are class models. It orders no list and is not one of this market's published figures. Fuel is this car's own combined consumption over 15,000 km a year at 1.738 CAD a litre of petrol (Statistics Canada. Table 18-10-0001-01 Monthly average retail prices for gasoline and fuel oil, by geography; Canada; regular unleaded gasoline at self service filling stations, 2026-08). Adapted from Statistics Canada, Table 18-10-0001-01 Monthly average retail prices for gasoline and fuel oil, by geography, August 2026. This does not constitute an endorsement by Statistics Canada of this product. Costs are in US dollars; the CAD pump price is converted at 1 CAD = 0.73 USD, the rate set on 2026-09-13. Insurance, maintenance and repairs are models, not figures for this car: insurance from its power, weight and crash rating, maintenance from its make's class, repairs from its complaint and recall counts. They are shown for scale and are not used to rank it. Confidence is low: several components are modelled from class averages.
Known Issues
ENGINE
169 complaint(s) · 2 report a crash, fire, injury or death
In late February/early March, my GMC Sierra with around 9000 miles had the following to occur on a cold start: check engine light came on as well as the service esc light & traction control light, tr…
POWER TRAIN
58 complaint(s) · 1 reports a crash, fire, injury or death
The truck stopped in the middle of an intersection with a transmission error code stating it could no longer shift. The transmission was locked and unable shift or move.
STRUCTURE:BODY
46 complaint(s)
In past three weeks, the tailgate just drops down for no reason at all. Sometimes going down the highway, other times while I am parking vehicle the Tailgate Lowers itself automatically.????Is their a…
ELECTRICAL SYSTEM
40 complaint(s) · 3 report a crash, fire, injury or death
Battery - Total discharge of the battery. 2023 GMC Sierra Denali purchased in Jan 2023. In July 2023, vehicle with 3800 miles door would not open, engine turn on, etc with electrical system complete…
UNKNOWN OR OTHER
33 complaint(s)
Bose radio randomly goes to maximum volume and you cant turn if off. This has happened twice and nearly cause wrecks each time trying to get out of traffic to turn the vehicle off.
FUEL/PROPULSION SYSTEM
28 complaint(s) · 1 reports a crash, fire, injury or death
Engine stops running due to a known problem with GM's Fuel Pump Control Module. The unexpected shutting off of the engine poses a serious risk to passengers and other vehicles while operation on all r…
ENGINE AND ENGINE COOLING
22 complaint(s)
The contact owns a 2023 GMC Sierra 1500. The contact stated that while driving 70 MPH, the vehicle lost motive power. The check engine warning light illuminated after the failure had occurred. The veh…
SERVICE BRAKES
10 complaint(s) · 1 reports a crash, fire, injury or death
electric parking brake turn on while towing behind Rv did damage to driver side ,had towed it for 340 miles before this happened it is not in my manual to disconnect the ground cable ,when I took it…
STEERING
8 complaint(s) · 2 report a crash, fire, injury or death
We drove our Truck from Hartwell Georgia to Coloma Wisconsin on [XXX]. En route we drove through heavy rain. We got to Coloma on [XXX]. The truck sat outside overnight in cold weather. Temps were in t…
EXTERIOR LIGHTING
6 complaint(s)
The contact owns a 2023 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed at night on an undulating roadway, the contact noticed that due to the narrow vertical area of il…
The 10 components named in the most complaints are shown, of 31 named in all.
These complaints are filed under SIERRA 1500, a name NHTSA also uses for other versions of this car, so some may concern those versions.
Data sources
- NRCan — fuel consumption ratings and vehicle class
- NHTSA — crash-test ratings, recalls and owner complaints
- New York State DMV — New York registrations, the cross-check on that denominator
- NHTSA — vehicles built for the US market, the complaint-rate denominator
- carstandings.com — basic-warranty terms, from this site's reviewed table
- EPA — horsepower and EPA test weight, from the Test Car List
- EPA — production volumes by make, from Automotive Trends
- NHTSA — body style and the crash-tested vehicle's curb weight, from the NCAP crash-test file
- NHTSA — body style and engine horsepower, from the vPIC VIN decoder