2020 GMC Sierra 2500 review
GMC Sierra 2500 highlights
Customer rating
Pros
- Amazing towing capabilities
- Innovative, advanced towing camera solutions
- Powerful diesel engine
Cons
- Most useful options only available on higher trims
- Poor gas mileage
- Very few driver-assistance features
Mileage (EPA estimate)
(data not available)
Pricing for current inventory
(no current inventory)
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All GMC Sierra 2500 years
What is new for the 2020 GMC Sierra 2500?
- The Sierra 2500 is available in a new trim called the AT4.
- Sierra 2500 trims have been upgraded with Smart Key, Rear Seat Heaters, and Blind Spot Monitor as standard equipment this year.
- The SLT trim now comes with Heated Steering Wheel as standard equipment.
2020 GMC Sierra 2500 trims
Base:
- 6.6L
- 445-hp, 910-lb-ft of torque 6.6L
- 401-hp, 464-lb-ft of torque 6.6L
- Overhead Airbags
- Side Airbags
- Traction Control
- Vinyl Seats
- Automatic Transmission
- Turbo Diesel Engine
- Bluetooth Technology
- Apple CarPlay
- View our GMC Sierra 2500 inventory
SLE:
- Includes all features available on the Base
- Power Mirrors
- Cloth Seats
- Cruise Control
- Alloy Wheels
- Satellite Radio Ready
- View our GMC Sierra 2500 SLE inventory
SLT:
- Includes all features available on the SLE
- Remote Start
- Smart Key
- Leather Seats
- Rear Defroster
- Power Seats
- Memory Seats
- Front Seat Heaters
- Heated Steering Wheel
- View our GMC Sierra 2500 SLT inventory
AT4:
- Includes all features available on the SLT
- Rear Seat Heaters
- A/C Seats
- Bed Liner
- View our GMC Sierra 2500 AT4 inventory
Denali:
- Includes all features available on the AT4
- Lane Departure Warning
- Parking Sensors
- Blind Spot Monitor
- Running Boards
- 20 Inch Plus Wheels
- BOSE Sound System
- Navigation System
- View our GMC Sierra 2500 Denali inventory
5 reasons to buy the 2020 GMC Sierra 2500
1. Powerful engine options
If you love to feel the might of a large engine, the 2020 GMC Sierra 2500 can deliver. The truck comes standard with a 401-hp 6.6L V8 that produces 464 lb-ft of torque. Or, you can opt for the available turbo-diesel. That 6.6L V8 engine produces 445 hp and 910 lb-ft of torque. With either option, you'll feel the power any time you accelerate, tow, or haul.
2. Suburb towing capacity
Whether you're gearing up for a cross-country trip with your fifth wheel, hauling your barrel horses to competition, or bringing small machinery to job sites, the 2022 GMC Sierra is up for the task. The standard 401-hp V8 can tow up to an estimated 24,000 pounds when properly equipped.
3. Tech-supported towing
Need support on challenging trailer maneuvers? The 2020 GMC Sierra 2500 can help set your mind at ease, thanks to an array of available technology to help make towing easy. The available ProGrade Trailering system offers 15 camera views, including one that allows you to see "through" the trailer, helping you back up perfectly on the first try. The available iN∙Command® control system lets you monitor temperature, tire pressure, and more in your trailer, if it's equipped.
4. Unique tailgate
When you're on the job, crawling in and out of the truck bed can eat up valuable time. The GMC MultiPro tailgate, available on all trims of the 2020 GMC Sierra 2500, aims to make your workday a bit easier. The tailgate can be transformed into six different configurations, including a workbench. It can be used to stop materials and tools from sliding around and can be folded down for easier access to the bed.
5. Upscale interior
After a long day of work or fun in the sun, you want to be comfortable on your ride home. The 2020 GMC Sierra makes that easy. The high-end Denali trim offers lots of luxury touches, like premium leather seating and wood trim. Even with the SLT trim, you'll have creature comforts including leather-appointed seats, heated front seats and steering wheel, and remote start functionality through the key that's perfect for keeping your truck warm or cool before you get in.
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Ratings & reliability
RepairPal gave the GMC Sierra 2500 an overall reliability rating of 3 out of 5 stars, which RepairPal describes as Above Average. This rating ranks GMC Sierra 2500 10th out of 19 among Fullsize Trucks.
View RepairPal's full rating of the GMC Sierra 2500GMC Sierra 2500 features and specs
SLE 2WD 2D Regular Cab
Standard Features
- ABS Brakes
- Air Conditioning
- Alloy Wheels
- AM/FM Stereo
- Android Auto
- Apple CarPlay
- Automatic Transmission
- Auxiliary Audio Input
- Bluetooth Technology
- Cloth Seats
- Cruise Control
- Overhead Airbags
- Power Locks
- Power Mirrors
- Power Windows
- Rear View Camera
- Satellite Radio Ready
- Side Airbags
- Tow Hitch
- Traction Control
- 20 Inch Plus Wheels
- Air Conditioning
- Auxiliary Audio Input
- Bed Cover
- Bed Liner
- Blind Spot Monitor
- BOSE Sound System
- Cloth Seats
- Fifth Wheel Tow Hitch
- Flex Fuel Vehicle
- Front Seat Heaters
- Gooseneck Tow Hitch
- Heated Steering Wheel
- Lane Departure Warning
- Long Bed
- Navigation System
- Parking Sensors
- Power Mirrors
- Power Seat(s)
- Rear Defroster
- Rear View Camera
- Remote Start
- Running Boards
- Satellite Radio Ready
- Smart Key
- Tow Hitch
Drive Wheels
Rear Wheel Drive (2WD)
Engine size
6.6L
Horsepower
401
Torque (ft-lbs)
464
Engine type
Gas
Fuel capacity
36
Wheelbase
141.55"
Overall length
235.5"
Width
81.75"
Height
79.94"
Leg room
F 44.53"
Head room
F 43.11"
Front tires
LT245/75R17E
Rear tires
LT245/75R17E
Seating capacity
3
Max towing capacity
1450/14500 lbs.
Transmission
Automatic
2020 GMC Sierra 2500 FAQ
The GMC Sierra 2500 received a rating of 3 out of 5 stars from RepairPal, which RepairPal describes as Above Average. This rating ranks the GMC Sierra 2500 as 9 out of 19 among Fullsize Truck
The 2020 GMC Sierra 2500 has a maximum towing capacity of between 14500 and 18500 pounds, when properly equipped. Various factors may impact towing capacity, including weight of passengers, cargo, and options/accessories.
Here is what's new for the 2020 GMC Sierra 2500:
- AT4
- Smart Key
- Rear Seat Heaters
- Blind Spot Monitor
- Head Up Display
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