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2015 GMC Sierra 3500 review

Research, photos, specs, and expertise

GMC Sierra 3500 highlights

Customer rating

RepairPal reliability rating

Mileage (EPA estimate)

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All GMC Sierra 3500 years

What is new for the 2015 GMC Sierra 3500?

  • The Sierra 3500 is available in a new trim called the Base.
  • Sierra 3500 trims have been upgraded with Bed Liner, Turbo Diesel Engine, and Navigation System as standard equipment this year.
  • Lane Departure Warning, Smart Key, and Alternative Fuel features are now available as options on select trims.
  • The SLE trim now comes with Side Airbags, Power Seat(s), Rear View Camera, Auxiliary Audio Input, Bluetooth Technology, Rear Defroster, and Parking Sensors as standard equipment.
  • The Denali trim now comes with Vinyl Seats as standard equipment.
  • The SLT trim now comes with Side Airbags, Rear View Camera, Cloth Seats, and Parking Sensors as standard equipment.
  • The Work Truck trim now comes with Power Windows and Side Airbags as standard equipment.

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Ratings & reliability

Customer ratings

5 out of 5

1 customer reviews

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

Base 2WD 2D Regular Cab

Standard Features

  • ABS Brakes
  • Air Conditioning
  • AM/FM Stereo
  • Automatic Transmission
  • Auxiliary Audio Input
  • Cruise Control
  • Overhead Airbags
  • Power Locks
  • Power Windows
  • Satellite Radio Ready
  • Tow Hitch
  • Traction Control
  • Vinyl Seats

Optional Features

  • Alternative Fuel
  • Bed Liner
  • Bluetooth Technology
  • CD Audio
  • Cloth Seats
  • Dual Rear Wheels
  • Fifth Wheel Tow Hitch
  • Gooseneck Tow Hitch
  • Heated Mirrors
  • Overhead Airbags
  • Power Locks
  • Power Mirrors
  • Rear Defroster
  • Running Boards
  • Side Airbags
  • Tow Hitch

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

1460/14600 lbs.

Transmission

Automatic

2015 GMC Sierra 3500 FAQ

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