Extended warranty worthiness profile

2018 GMC Sierra 1500

Broad repair planning ranges plus reported complaint, recall and manufacturer communication signals. Reports describe submitted cases and do not measure the probability of failure.

293complaint reports

7recall campaigns

950manufacturer communications

6leading reported components

Animated diagnostic view representing the 2018 GMC Sierra 1500

Model-year reading

What the 2018 record can and cannot say

Compared with other GMC Sierra 1500 years here, the 2018 total is 119 below the median year in this model file. Its raw count is 293, with no denominator for vehicles sold.

At 123 reports, Power Train is the most common displayed tag. The 42% share describes submitted complaints only; it does not describe the fleet.

Engine replacement or major internal repair provides the strongest parts-only stress test at a $7,000 midpoint. Local labor raises the bill, while claim rules can lower what the plan actually pays.

Vehicle configuration

2018 EPA specification range

The official dataset contains 14 matched configurations for this model year. The range reflects trim and drivetrain choices, not changes to the complaint count.

Vehicle classSpecial Purpose Vehicle and Standard pickup

Fuel choicesGasoline, Gasoline or E85, and Hybrid

Drive layoutsFour-wheel drive and Rear-wheel drive

Engine range4.3 to 6.2 L; 6 to 8 cylinders

EPA efficiency17 to 20 mpg

Transmission typesAutomatic

EPA figures vary by configuration. Confirm the exact engine, drive layout and fuel system from the VIN or original window sticker. Source: FuelEconomy.gov vehicle data, updated 2026-06-16.

Estimated repair bills

Major repair cost range

Parts and labor benchmarks combined with an independent-shop labor model for Dallas, TX. Published model estimates calibrate supported repairs; model-year configuration data removes incompatible scenarios.

Repair	System	Estimated range
Engine replacement or major internal repair	Engine	$5,860-$16,847
Transmission replacement	Transmission	$3,492-$11,122
Hybrid high voltage battery replacement	Hybrid powertrain	$4,986-$5,316
Transfer case replacement	Driveline	$2,044-$8,129
Turbocharger replacement	Turbo and Supercharger	$1,520-$6,465
Head gasket replacement	Engine	$2,286-$3,619
Timing chain replacement	Engine	$1,895-$2,968
Catalytic converter replacement	Exhaust and emissions	$2,241-$2,517
Steering rack replacement	Steering	$2,164-$2,584
Strut and control arm repair	Suspension	$946-$4,495

Compare years

Other GMC Sierra 1500 model years

202591 reports · 1 recalls 2024314 reports · 1 recalls 2023412 reports · 3 recalls 2022533 reports · 6 recalls 2021519 reports · 7 recalls 2020438 reports · 12 recalls 2019609 reports · 10 recalls 2018293 reports · 7 recalls 2017350 reports · 5 recalls 2016337 reports · 7 recalls 2015712 reports · 9 recalls

Check warranty worthiness Model overview Adjust costs by city