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2018 GMC Sierra 3500 review

Research, photos, specs, and expertise

GMC Sierra 3500 highlights

Customer rating

(not yet rated)

RepairPal reliability rating

Mileage (EPA estimate)

(data not available)

Pricing for current inventory

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All GMC Sierra 3500 years

What is new for the 2018 GMC Sierra 3500?

  • Sierra 3500 trims have been upgraded with Apple CarPlay and Android Auto as standard equipment this year.
  • The Base trim now comes with Cloth Seats, Power Mirrors, Rear View Camera, and Bluetooth Technology as standard equipment.

2018 GMC Sierra 3500 trims

Curious how GMC Sierra 3500 trims differ? Use our side-by-side vehicle comparison to see the differences and similarities

Base:

  • 445-hp, 910-lb-ft of torque 6.6L
  • 360-hp, 380-lb-ft of torque 6.0L
  • Vinyl Seats
  • Side Airbags
  • Overhead Airbags
  • Cruise Control
  • Cloth Seats
  • Power Mirrors
  • Traction Control
  • Rear View Camera
  • View our GMC Sierra 3500 inventory

SLE:

SLT:

Denali:

  • Includes all features available on the SLT
  • A/C Seats
  • Heated Steering Wheel
  • Parking Sensors
  • Lane Departure Warning
  • Bed Liner
  • Running Boards
  • BOSE Sound System
  • Navigation System
  • View our GMC Sierra 3500 Denali inventory

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Ratings & reliability

Customer ratings

The 2018 GMC Sierra 3500 is not yet rated. Help future customers learn about a car you've owned and write a review.

RepairPal reliability rating

3
Average

RepairPal gave the GMC Sierra 3500 an overall reliability rating of 3 out of 5 stars, which RepairPal describes as Average. This rating ranks GMC Sierra 3500 14th out of 19 among Fullsize Trucks.

View RepairPal's full rating of the GMC Sierra 3500

GMC Sierra 3500 features and specs

Curious how GMC Sierra 3500 trims differ? Use our side-by-side vehicle comparison to see the differences and similarities

SLE 2WD 2D Regular Cab

Standard Features

  • ABS Brakes
  • Air Conditioning
  • Alloy Wheels
  • AM/FM Stereo
  • Apple CarPlay
  • Automatic Transmission
  • Auxiliary Audio Input
  • Bluetooth Technology
  • CD Audio
  • Cloth Seats
  • Cruise Control
  • Dual Rear Wheels
  • Flex Fuel Vehicle
  • Heated Mirrors
  • Power Locks
  • Power Mirrors
  • Power Seat(s)
  • Power Windows
  • Rear View Camera
  • Satellite Radio Ready
  • Tow Hitch
  • Traction Control

Optional Features

  • Alloy Wheels
  • Bed Cover
  • Bed Liner
  • Fifth Wheel Tow Hitch
  • Flex Fuel Vehicle
  • Gooseneck Tow Hitch
  • Lane Departure Warning
  • Navigation System
  • Overhead Airbags
  • Parking Sensors
  • Power Seat(s)
  • Rear Defroster
  • Remote Start
  • Running Boards
  • Side Airbags

Drive Wheels

Rear Wheel Drive (2WD)

Engine size

6.0L

Horsepower

360

Torque (ft-lbs)

380

Engine type

Gas

Fuel capacity

36

Wheelbase

133.6"

Overall length

224.4"

Width

80.12"

Height

77.83"

Leg room

F 45.27"

Head room

F 42.8"

Front tires

LT265/70R18E

Rear tires

LT265/70R18E

Seating capacity

3

Max towing capacity

1450/14600 lbs.

Transmission

Automatic

2018 GMC Sierra 3500 FAQ

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Statements of fuel economy or EV range are based on EPA and other third-party estimates for vehicles when new. Fuel economy and EV range will degrade with time and vary based on age, driving conditions, vehicle history, and other conditions. See fueleconomy.gov for more info.

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