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Transport Canada + NRCan

2018 GMC Sierra HD

Everything Canada’s open data holds on this vehicle: what has been recalled, what it costs to run, and how efficient it is compared with everything else on the road.

Recalls

6

6 current

Combined

13.1L/100 km

Fuel, a year

$3,299

16,249 km, Ontario prices

Recalls

Good news: Recall repairs are almost always free. Book with any manufacturer dealer and quote the recall number. Transport Canada’s own wording is that a manufacturer “will almost always make these repairs free of charge”, so being asked to pay for recall work is unusual and worth questioning. Since 2018 the Minister of Transport can order a company to pay for repairs so owners do not bear the cost.

Airbag

Transport Canada recall 2024595 · manufacturer campaign N242474500

10 October 2024

Transport Canada lists: Silverado 2018 · Sierra HD 2018

What is wrong

On certain vehicles, the side curtain airbag inflators could be defective. As a result, the driver and/or passenger side curtain airbag inflator(s) could deploy without a crash. If this happens, parts could be propelled toward vehicle occupants.

Why it matters

An airbag inflator that ruptures can create a risk of injury.

What the dealer will do

General Motors will notify owners by mail and advise you to take your vehicle to a dealership to replace both side curtain airbag modules.

240 vehicles affected in CanadaLight Truck & VanSafety Mfr

Fuel System

Transport Canada recall 2023040 · manufacturer campaign N222368030

2 February 2023

Transport Canada lists: Silverado HD 2017–2019 · Sierra HD 2017–2019

What is wrong

On certain trucks equipped with a diesel engine and dual fuel tanks, the rear fuel pump may not transfer enough fuel to the front tank. If this happens, you may notice an engine hesitation and the check engine light may turn on. The engine could also stall suddenly while driving, and you may not be able to restart it.

Why it matters

A sudden loss of engine power could increase the risk of a crash.

What the dealer will do

General Motors will notify owners by mail and instruct you to take your truck to a dealership to inspect the rear fuel tank and fuel pump module, and replace them if necessary. The dealer will also add a fuel tank vent hose.

570 vehicles affected in CanadaLight Truck & VanSafety Mfr

Electrical

Transport Canada recall 2021407 · manufacturer campaign N212329840

1 July 2021

Transport Canada lists: Silverado HD 2017–2019 · Sierra HD 2017–2019

What is wrong

On certain vehicles, a small coolant leak could cause the engine block-heater cable to short circuit while plugged in. Note: This recall only affects trucks equipped with a 6.6 L diesel engine and an optional block-heater power cable. This recall replaces Transport Canada Recall # 2019-204. All vehicles repaired under that recall require a second repair.

Why it matters

A short circuit could cause damage to engine components and create the risk of a fire.

What the dealer will do

General Motors will notify owners by mail. The corrective actions for this recall are under development. Do not use your engine-block heater until the repairs are performed.

36,376 vehicles affected in CanadaLight Truck & VanSafety Mfr

Electrical

Transport Canada recall 2019204 · manufacturer campaign N182206310

26 April 2019

Transport Canada lists: Silverado HD 2017–2019 · Sierra HD 2017–2019

What is wrong

A problem with the engine-block heater cable or the terminals that connect the heater cable to the block heater could cause a short circuit. Note: This problem only affects trucks equipped with a Duramax diesel 6.6 litre engine and the optional engine-block heater cable.

Why it matters

A short circuit could cause damage to engine components and create the risk of a fire.

What the dealer will do

The company will notify owners by mail and instruct you to take your vehicle to a dealer to either replace the engine-block heater or replace both the engine-block heater and cord, depending on the model. Do not use your engine-block heater until the repairs are performed.

40,457 vehicles affected in CanadaLight Truck & VanSafety Mfr

Fuel System

Transport Canada recall 2019055 · manufacturer campaign N182204190

8 February 2019

Transport Canada lists: Silverado HD 2016–2018 · Sierra HD 2016–2018

What is wrong

On certain 3500 series trucks, the level sensor in the front fuel tank may malfunction. In rare cases, the front fuel tank may over-fill and expand, causing it to contact the driveshaft. Operators may hear a grinding or knocking noise if this happens. This could create a hole in the tank and cause a fuel leak. Note: This problem only affects cab and chassis models equipped with a gasoline engine and dual fuel tanks.

Why it matters

Leaking fuel, in the presence of an ignition source, creates the risk of a fire.

What the dealer will do

The company will notify owners by mail. Owners will be instructed to take their vehicle to a dealer to have the rear-tank fuel-pump module replaced. Dealers will also inspect the front tank and replace if necessary.

495 vehicles affected in CanadaChassis CabSafety Mfr

Seats And Restraints

Transport Canada recall 2017445 · manufacturer campaign 17368

15 September 2017

Transport Canada lists: Silverado HD 2017–2018 · Sierra HD 2017–2018

What is wrong

Certain double-cab pickup trucks equipped with a manual passenger side frontal airbag “ON/OFF” switch may not comply with the requirements of Canada Motor Vehicle Safety Standards (CMVSS) 209 – Seat Belt Assemblies. The front passenger seat belt retractor assembly may not be equipped with the correct torsion bar. If the front passenger airbag is manually turned off and inadvertently left off with an adult in the front passenger seat, this condition could increase the risk of injury to the front passenger in the event of a crash.

What the dealer will do

For unsold vehicles, dealers will replace both the driver and passenger retractors, and for sold vehicles, dealers will replace the passenger retractor.

320 vehicles affected in CanadaLight Truck & VanSafety Mfr

Efficiency and running cost

Class
Pickup truck: Standard
In its class
More efficient than 45% of 97 2018 vehicles in this class
Tailpipe CO₂
307 g/km

Set your own distance and pump price · Full efficiency ranking

Watch this vehicle

Recall letters go to whoever owns the car on paper, which may not be you. Save your 2018 GMC Sierra HD and we will email you the day Transport Canada issues a new recall for it.

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Common questions

Does the 2018 GMC Sierra HD have any recalls?
Transport Canada has 6 recalls on record for the 2018 GMC Sierra HD. Recall repairs are almost always free at a manufacturer dealer.
What fuel economy does the 2018 GMC Sierra HD get?
NRCan rates the 2018 GMC Sierra HD at 13.1 L/100 km combined, emitting 307 g of CO2 per kilometre. There are 16 rated versions; this is the median.
What does it cost to run a 2018 GMC Sierra HD for a year?
At 16,249 km a year and Ontario average prices, about $3,299 in fuel, producing roughly 4,917 kg of CO2. Your own distance and prices will change this — the calculator lets you set both.

Source: Transport Canada — Vehicle Recalls Database; NRCan — Fuel consumption ratings. Data current as of 6 August 2026. Running cost uses Ontario average prices (155 ¢/L, 14.5 ¢/kWh), which are hand-maintained estimates. These are average residential rates. A car’s charging is added on top of what your home already uses, so on a tiered, time-of-use or subsidised tariff it is billed at your top rate rather than this average — which makes the real cost higher, especially in the territories. Enter your own rate for an accurate figure. 30,784 rated vehicles on file.