Key Specs

of the 2018 GMC Sierra 1500 base trim shown

Our Take

From the Cars.com Vehicle Test Team

The Good

  • All Terrain model
  • Two bed-length choices for crew cab
  • Direct-injection, cylinder-deactivating engines
  • Quiet interior

The Bad

  • No long-bed double-cab model for 1500
  • No diesel-engine option on 1500
  • Steering wheel not centered on driver's seat
2018 GMC Sierra 1500 exterior side view

Notable Features of the 2018 GMC Sierra 1500

  • 7-inch touchscreen radio, backup camera now standard
  • Heavy-duty Denali models get new grille
  • 12,500-pound maximum towing capacity (Sierra 1500)
  • Apple CarPlay, Android Auto connectivity standard
  • OnStar with 4G LTE and Wi-Fi hot spot available
  • Forward collision warning available

2018 GMC Sierra 1500 Overview

By Cars.com Editors
Vehicle Overview

What it is: The Sierra 1500 is GMC's entrant in the half-ton, full-size pickup truck segment. It’s a corporate cousin of the Chevrolet Silverado 1500, sharing the same platform, engines, body styles and major mechanical features. The Sierra has different styling, particularly in front, and GMC positions its vehicles as more upscale than Chevrolet’s. Competitors include the Ford F-150, Ram 1500 and Toyota Tundra.

Three cab styles — regular, extended and crew — and three engines are available for the Sierra 1500. All the engines are gas-powered: a 4.3-liter V-6, and 5.3-liter and 6.2-liter V-8s. As with the Silverado, the Sierra is available in 2500HD and 3500HD heavy-duty versions that offer a turbo-diesel engine and higher payloads and towing capacities.

New for 2018

The base truck gains a standard 7-inch touchscreen radio and a backup camera. The tire pressure monitor now includes a tire-fill alert that monitors how much air is pumped into a tire.

Sierra 2500HD and 3500HD
The GMC Sierra 2500HD and 3500HD heavy-duty pickup trucks are the true workhorses of the Sierra lineup and are designed for hauling heavy payloads and towing large trailers.

Changes for 2018 include a standard backup camera on all models with a cargo bed, a standard 7-inch touchscreen radio for the base model and a new grille for the Denali version.

What's Special

  • Standard 360-horsepower, 6.0-liter V-8
  • Available 445-hp, turbo-diesel 6.6-liter V-8 w...
Vehicle Overview

What it is: The Sierra 1500 is GMC's entrant in the half-ton, full-size pickup truck segment. It’s a corporate cousin of the Chevrolet Silverado 1500, sharing the same platform, engines, body styles and major mechanical features. The Sierra has different styling, particularly in front, and GMC positions its vehicles as more upscale than Chevrolet’s. Competitors include the Ford F-150, Ram 1500 and Toyota Tundra.

Three cab styles — regular, extended and crew — and three engines are available for the Sierra 1500. All the engines are gas-powered: a 4.3-liter V-6, and 5.3-liter and 6.2-liter V-8s. As with the Silverado, the Sierra is available in 2500HD and 3500HD heavy-duty versions that offer a turbo-diesel engine and higher payloads and towing capacities.

New for 2018

The base truck gains a standard 7-inch touchscreen radio and a backup camera. The tire pressure monitor now includes a tire-fill alert that monitors how much air is pumped into a tire.

Sierra 2500HD and 3500HD
The GMC Sierra 2500HD and 3500HD heavy-duty pickup trucks are the true workhorses of the Sierra lineup and are designed for hauling heavy payloads and towing large trailers.

Changes for 2018 include a standard backup camera on all models with a cargo bed, a standard 7-inch touchscreen radio for the base model and a new grille for the Denali version.

What's Special

  • Standard 360-horsepower, 6.0-liter V-8
  • Available 445-hp, turbo-diesel 6.6-liter V-8 with 910 pounds-feet of torque
  • Maximum towing capacity of 20,000 pounds with a conventional trailer hitch (3500HD with dual rear wheels)
  • Maximum fifth-wheel or gooseneck towing capacity of 23,300 pounds (3500HD with dual rear wheels)

Latest 2018 Sierra 1500 Stories

What Drivers Are Saying

Exterior Styling
(4.9)
Performance
(4.9)
Interior Design
(4.9)
Comfort
(4.9)
Reliability
(4.9)
Value For The Money
(4.7)

Latest Reviews

(5.0)

I got my dream truck.

by SteveK from Tacoma on May 16, 2018

Had a great experience buying my dream truck. Finally got my full size crew cab truck in my blue color. I have a busy schedule Isaac Meeks worked with my schedule and made my experience stress free. ... Read full review

(5.0)

Luxury truck at it's finest

by mikehaf from Howell,MI on May 14, 2018

2018 GMC Sierra Denali. This is a truck with the luxury of a Cadillac. If you want to haul or tow stuff or go on a long trip it is good for all. Huge spacious back seat makes it Family friendly. Love ... Read full review

Safety & Recalls

Recalls

The 2018 GMC Sierra 1500 currently has 0 recalls

NHTSA Crash and Rollover Test Ratings

Based on 2018 GMC Sierra 1500 Base

NHTSA rates vehicles using a star rating system from 1-5 stars, with 5 being the highest.

Overall
5 Star
Overall Front
5 Star
Overall Side
5 Star
Overall Rollover Rating
4 Star
Driver's
5 Star
Passenger's
5 Star
Side Barrier
5 Star
Side Barrier Rating Driver
5 Star
Side Barrier Rating Passenger Rear Seat
5 Star
Side Pole
5 Star
Side Pole Barrier combined (Front)
5 Star
Side Pole Barrier combined (Rear)
5 Star
National Highway Traffic Safety Administration (NHTSA) is part of the U.S. Department of Transportation. NHTSA provides vehicle safety information such as front- and side-crash ratings and rollover ratings. Vehicles are rated using a star rating system from 1-5 stars, with 5 being the highest.

Manufacturer Warranty

  • Bumper-to-Bumper

    36 months / 36,000 miles

CPO Program & Warranty

Certified Pre-Owned by GMC

Program Benefits

Two Factory-Backed Warranties, CPO Scheduled Maintenance Program, Vehicle Inspection & Reconditioning, 3-Day/150-Mile Vehicle Exchange Program, 24/7 Roadside Assistance and Courtesy Transportation, OnStar & SiriusXM Satellite Radio Trial Offers, and a Carfax Vehicle History Report

  • Limited Warranty

    Two Factory-Backed Warranties

    6-Year/100,000-Mile, Powertrain Limited Warranty and a 12- Month/12,000-Miles, Bumper-to-Bumper Limited Warranty, both with $0 deductible
  • Eligibility

    Under 5 years / 75,000 miles

    Vehicles receive a 172-Point Vehicle Inspection and Reconditioning.

    See inspection details.

Change Year or Vehicle

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Cars.com Car Seat Check

Certified child passenger safety technicians conduct hands-on tests of a car’s Latch system and check the vehicle’s ability to accommodate different types of car seats. The Sierra 1500 received the following grades on a scale of A-F.*
* This score may not apply to all trims, especially for vehicles with multiple body styles that affect the space and design of the seating.

Warranty FAQs

What is a Bumper-to-Bumper warranty?

Often called a basic warranty or new-vehicle warranty, a bumper-to-bumper policy covers components like air conditioning, audio systems, vehicle sensors, fuel systems and major electrical components. Most policies exclude regular maintenance like fluid top offs and oil changes, but a few brands have separate free-maintenance provisions, and those that do offer them is slowly rising. Bumper-to-bumper warranties typically expire faster than powertrain warranties.

What is a Powertrain warranty?

Don't be misled a 10-year or 100,000-mile powertrain warranty doesn't promise a decade of free repairs for your car. It typically covers just the engine and transmission, along with any other moving parts that lead to the wheels, like the driveshaft and constant velocity joints. Some automakers also bundle seat belts and airbags into their powertrain warranties. With a few exceptions, powertrain warranties don't cover regular maintenance like engine tuneups and tire rotations.

What is included in Roadside Assistance?

Some automakers include roadside assistance with their bumper-to-bumper or powertrain warranties, while others have separate policies. These programs cover anything from flat-tire changes and locksmith services to jump-starts and towing. Few reimburse incidental costs like motel rooms (if you have to wait for repairs).

What other services could be included in a warranty?

Some automakers include free scheduled maintenance for items such as oil changes, air filters and tire rotations. Some include consumables including brake pads and windshield wipers; others do not. They are typically for the first couple of years of ownership of a new car.

What does CPO mean?

A certified pre-owned or CPO car has been inspected to meet minimum quality standards and typically includes some type of warranty. While dealers and third parties certify cars, the gold standard is an automaker-certified vehicle that provides a factory-backed warranty, often extending the original coverage. Vehicles must be in excellent condition and have low miles and wear to be certified, which is why off-lease vehicles feed many CPO programs.

See also the latest CPO incentives by automaker