2020 GMC Sierra 1500

2020 MODEL
$31,195 - $37,190
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7.5

Overall Rating

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2020 GMC Sierra 1500 Complete In-depth Review & Buying Guide

Updated on: April 4, 2020
Rishabh Mehra's image

Rishabh Mehra

Automotive Content Writer

The GMC Sierra has always been the first choice of truck enthusiasts. Mechanically, the Sierra shares a hell lot with the Chevy Silverado but the GMC is marketed as a premium alternative to the chevy truck.

For the 2020 model, the GMC Sierra comes with an updated fascia and some redesigned interiors to stand out with its own identity. A wide range of engines are on offer including a V8 engine and the truck is also offered with an off-roading package. 

See detailed review »

Pros

Best in class trunk bed

Excellent legroom in the cabin

Cons

Material quality could be better

The base engine can feel sluggish

What's New?

10-speed auto is now available with the mid-spec V8


Features

vehicle bio

base price

$29600

bodystyle

2dr Regular cab

passenger capacity

3

drivetrain

RWD

engine type

displacement

262 cu.in.

horsepower

285 hp @ 5300 rpm

torque

305 lbs.-ft. @ 3900 rpm

transmission

6 speed automatic

chassis

frame type

Ladder Frame

suspension front

Independent front short and long arm suspension w/anti-roll bar

suspension rear

Rigid axle rear leaf suspension

dimensions

wheelbase

139.6 in.

length

229.6 in.

width

81.2 in.

height

75.6 in.

curb weight

4520 lbs.

ground clearance

8.1 in.

capacity

towing capacity

10000 lbs.

payload capacity

2240 lbs.

performance

zero to 60 mph

6.5 sec.

zero to 100 mph

14.6 sec.

rolling start (5-60 mph)

7.5 sec.

standing ¼-mile

15 sec.

braking (70-0 mph)

210 ft.

fuel economy

city/combined/highway

16/17/21 mpg

ev range

448 mi.

highway range

588 mi.

warranty

basic warranty

3 yr./ 36000 mi.

drivetrain warranty

5 yr./ 60000 mi.

powertrain warranty

5 yr. / 60000 mi.

corrosion warranty

6 yr. / 100000 mi.

roadside assistance

5 yr./ 60000 mi.


Pictures

Exterior
Interior

Ratings

Features

7.5

Interior

7.5

7.5

OVERALL RATING

Trims and Configurations

MSRP


2020 GMC Sierra 1500 Base

Base

power
355 hp @ 5600 rpm
fuel
Regular unleaded
mpg
19 combined

$31,195 - $37,190


Style Prices MPG Engine Transmission Drivetrain Seats Colors
2dr Regular Cab LB (4.3L 6cyl 6A) Starting at $31,195 MSRP (17/19/23) 285 hp @ 5300 rpm, 4.3 L, V-6, regular unleaded
6-speed shiftable automatic rear wheel drive 3
2dr Regular Cab LB 4WD (4.3L 6cyl 6A) Starting at $35,795 MSRP (17/19/23) 285 hp @ 5300 rpm, 4.3 L, V-6, regular unleaded
6-speed shiftable automatic four wheel drive 3
2dr Regular Cab LB (5.3L 8cyl 6A) Starting at $32,590 MSRP (17/19/23) 355 hp @ 5600 rpm, 5.3 L, V-8, regular unleaded
6-Speed Automatic rear wheel drive 3
2dr Regular Cab LB 4WD (5.3L 8cyl 6A) Starting at $37,190 MSRP (17/19/23) 355 hp @ 5600 rpm, 5.3 L, V-8, regular unleaded
6-Speed Automatic four wheel drive 3

Expert Review

7.5

Overall Rating


One of the most iconic and easily recognizable trucks, the GMC Sierra series has withstood the test of time and is as of today one of the most selling trucks that the American market has ever seen. The truck is a jack of all trades kind of deal and does not let down on any front.

For the 2020 model, the GMC Sierra comes with an updated fascia and some redesigned interiors to stand out with its own identity. A wide range of engines are on offer including a V8 engine and the truck is also offered with an off-roading package. 

2020 GMC Sierra 1500 Regular Cab Front View
2020 GMC Sierra 1500 Regular Cab Rear View

7.5/10
Features

 
 
 

7.5/10
Interior

 
 
 
 
 

2020 GMC Sierra 1500 Features

7.5/10

The 2020 GMC Sierra 1500 RegularCab is offered in 1 basic trim. The base trim sports a price tag of $28.205 and is powered by a 4.3L Ecotech3 V6 engine. The set of standard features include HID headlamps, 3.5-inch monochromatic display amongst other features.

Trim

Sierra 1500 Regular cab

MSRP(2WD)

$29,600

MSRP(4wd)

$34,200

Features

headlamps, High-Intensity Discharge (HID), bifunctional with GMC LED signature

 

DRIVER INFORMATION CENTER With 3.5" diagonal monochromatic display.

 

Steering column tilt-wheel, manual operation

 

Single-zone manual air conditioning

 

Graphite-colored rubberized-vinyl for floor covering

 

Rearview mirror With manual day/night adjustment

What do we recommend?

The decision of picking up the rear-wheel-drive version or the 4X4 version totally depends on the usage of the user. For all-weather drivability and off-roading, 4WD is the one to go but if hauling cargo is the main motive, the RWD version might sound more attractive as it has a higher towing capacity. 

2020 GMC Sierra 1500 Engine and Performance

The Sierra 1500 has a big lump of a V6 upfront. The engine, on paper, does sound a bit underpowered but out in the real world, this engine pulls. And it pulls hard. Right from down low in the rev range, the V6 feels super torquey. Mated to a 6-speed conventional automatic transmission, hauling this massive truck uphill is not an issue either. The shifts come in quickly and effortlessly and for a powertrain of the base truck, it feels quite refined and well-calibrated. 

Models

GMC Sierra 1500 Regularcab

Ford-150 XL RegularCab

Chevrolet Silverado-1500 LS

MSRP

$29,600

$28,795

$28,300

Engine

4.3L 6cyl

3.5L 6cyl

4.3L 6cyl

Transmission

6-speed automatic

6-speed Automatic

6-speed Automatic

Horsepower

285 hp

282 hp

285 hp

Torque

305 lb-ft

253 lb-ft

305 lb-ft

In comparison with rivals, the GMC Sierra 1500 sits at par with the Chevy Silverado to take the top spot when it comes to both engine capacity and performance as they both share the same engine and the gearbox. Mechanically and out on the road, both these trucks feel quite similar to each other in terms of outright performance. 

How fast is the GMC Sierra 1500 off the line?

There is no getting away the fact that 2020 GMC Sierra 1500 is one heavy truck. For the amount of heft, this thing has to lug around, it accelerates fairly swiftly. From a standstill, the truck picks up the pace in a linear fashion with the gearbox assisting the engine all the way. With only six speeds to play with, the progress does feel a bit slow. 

2020 GMC Sierra 1500 Regular Cab 0-60 MPH in just 7.1 sec

Nonetheless, outright acceleration is respectable for this base-spec pick-up truck.

Models

GMC Sierra 1500 Regularcab

Ford-150 XL RegularCab

Chevrolet Silverado-1500 LS

0-60 MPH

7.1

7.3

7.0

Quarter mile

15.2

N/A

15.2

Engine

4.3L V6

3.5L V6

4.3L V6

On paper, all of these trucks are equally matched but in flesh, the Ford F-150 feels the light on its feet and a bit more agile compared to the Chevy and the GMC. 

What’s the handling like?

The 2020 GMC Sierra handles like a much smaller vehicle than it really is. Out on a straight and wide road, the truck feels stable and safe at high speeds. Encounter a set of twisties? Not an issue for the GMC as the suspension is not overly soft and keeps the body control under check. That being said, push this massive beast a bit too hard and the inert truck personality steps out and it rolls all over the place which is something which is expected from a giant like the GMC Sierra. 

What about the braking performance?

Under heavy braking, the GMC Sierra holds its own. The brakes are nice and predictable coupled with a linear and progressive brake pedal which is easy to modulate in traffic. With that said, the pedal travel feels a bit too long and it takes time to get used to it. 

2020 GMC Sierra 1500 Regular Cab Has Front brake is 13.5 in.

Model

GMC Sierra 1500

Ford F-150

Chevrolet Silverado 1500

Brake Front (in.)

13.5

13.8

13.5

Brake Rear (in.)

13.6

13.7

13.6

Curb Weight (lbs.)

4520

4177

4520

60-0 MPH (ft.)

128

121

128

Being the lightest of the lot, the 2020 Ford F-150 feels absolutely phenomenal under hard braking and as a result, it stops in the shortest distance. As expected, the 2020 GMC Sierra 1500 and the Chevrolet Silverado 1500 performed identically as they are both based on the same platform and share the same mechanicals as well.

How much towing power does the GMC Sierra 1500 Regular Cab has?

The GMC Sierra 1500 is an outright beast in the sense it can haul almost twice its body weight and this is just the base pick-up with a V6. that being said, the rear powered Sierra is rated above the AWD version in terms of outright towing capacity which is down to 9800 pounds.

Model

Chevrolet Silverado 1500

Ford F-150

GMC Sierra 1500

Towing Capacity (lbs)

10000

12100

10000

The champ of the towing world is the Ford F-150, with a maxing towing load of 12,100 pounds. The Silverado and the Sierra are the same here too, with a towing capacity of 10000 pounds.

2020 GMC Sierra 1500 Fuel Economy

Keeping in mind that GMC Sierra tips the scale at more than 4000 pounds, it performed fairly well in our fuel economy tests. The V6 under the giant hood of the Sierra is clever than most V6 engines on sale. It gets an intelligent fuel management system that shuts off three cylinders when cruising out on the motorway thereby reducing the fuel consumption. 

Model

GMC Sierra 1500 

Ford F-150

Chevrolet Silverado 1500

MPG (city)

16

19

16

MPG (highway)

21

25

21

MPG (combined)

17

22

17

Fuel Tank Capacity (Gal)

28

23

28

Range (City/Highway)

448/588

437/575

448/588

The Sierra and the Silverado share the same exact fuel economy rating. The king of the hill here is the Ford F-150, with a combined average of 22 mpg, considerably higher than the others in the class. Where the F-150 lacks is the range available due to its smaller fuel tank.

2020 GMC Sierra 1500 Interior

7.5/10

The GMC Sierra is massive inside and out. It gets a square-ish looking dashboard, it’s upright and sports equally big air-con vents which match the whole vibe of the pickup truck. Most parts of the dashboard and the doors are covered with hard plastics and feel downright cheap which is expected from a base regular cab truck.

2020 GMC Sierra 1500 Regular Cab Seats

The seats are humongous and high on comfort. They are snug and long distances should not be a problem at all. For absolute comfort, while grand touring, the Expedition gets a truly massive and one of the biggest armrests in the history of armrests and underneath gets cubby storage which might be able to fit even an i-pad. 

How big is the cargo bed in the Sierra 1500 Regular Cab?

The bed in the back of the 2020 GMC Sierra regular cab is downright massive. GMC claims that it can carry 20% more cargo than its competitors. For better accessibility, there are grab handles are incorporated in the design itself. 

Model

GMC Sierra 1500

Ford F-150

Chevrolet Silverado 1500

Cargo Volume with rear seats up (ft.3)

89.1

77.4

89.1

Cargo Volume with rear seats down (ft.3)

N/A

N/A

N/A

Three cargo tow hooks are present in the back and each of them can bear up to 500 pounds which is super impressive. Ford-F150 falls short of cargo space in its rear bed and thus is not the most practical truck of the lot.

2020 GMC Sierra 1500 Regular Cab Interior
2020 GMC Sierra 1500 Regular Cab Interior
2020 GMC Sierra 1500 Regular Cab Interior
2020 GMC Sierra 1500 Regular Cab Interior
2020 GMC Sierra 1500 Regular Cab Interior
2020 GMC Sierra 1500 Regular Cab Interior
2020 GMC Sierra 1500 Regular Cab Interior
2020 GMC Sierra 1500 Regular Cab Interior
2020 GMC Sierra 1500 Regular Cab Interior
2020 GMC Sierra 1500 Regular Cab Interior

2020 GMC Sierra 1500 Exterior

The 2020 GMC Sierra regular cab is at the bottom of the Sierra trim levels and lacks the flair on the outside. It is devoid of any sort of chrome treatment except for the chrome strip around the grille. The lights are not fancy, in fact, the headlight cluster houses HID lights and not the LEDs. 

2020 GMC Sierra 1500 Regular Cab Front View

At the side, the regular cab gets steel rims that look retro and have an old-school charm to them and feels like a breath of fresh air in the sea of similar-looking diamond cut alloys. These wheels do look rugged and can actually go anywhere. The GMC Sierra is a total workhorse and that’s exactly what it looks like on the outside. 

Model

GMC Sierra 1500

Ford F-150

Chevrolet Silverado 1500

Curb weight (lbs.)

4520

4177

4520

Length(in)

229.5

227.9

229.6

Width(in)

81.1

79.9

81.2

Height(in)

75.6

75.1

75.6

Ground clearance (in)

8.2

8.6

8.1

Wheelbase (in)

139.6

141

139.6

Track width (in) F/R

N/A

N/A

N/A

Both the GMC and the Chevy trucks are exactly identical in terms of dimensions. Both share the same platform and the powertrain as well. The Ford F-150 is a much mighter truck in comparison and has long overhangs which makes it that much longer than the GM trucks. However, they all have tons and tons of street presence. 

2020 GMC Sierra 1500 Regular Cab Exterior
2020 GMC Sierra 1500 Regular Cab Exterior
2020 GMC Sierra 1500 Regular Cab Exterior
2020 GMC Sierra 1500 Regular Cab Exterior
2020 GMC Sierra 1500 Regular Cab Exterior
2020 GMC Sierra 1500 Regular Cab Exterior
2020 GMC Sierra 1500 Regular Cab Exterior
2020 GMC Sierra 1500 Regular Cab Exterior
2020 GMC Sierra 1500 Regular Cab Exterior
2020 GMC Sierra 1500 Regular Cab Exterior

2020 GMC Sierra 1500 Safety

The GMC Sierra 1500 has not been crash-tested by any major crash-testing agencies yet. The set of standard safety features includes dual-stage frontal airbags, lane assist, and forward collision alert and tire pressure monitoring system amongst others. There is definitely a lack of active safety features on the Sierra 1500. Some other Safety features are as follows:

  • 4 Wheel ABS
  • Engine Immobilizer
  • Post-Collision Safety Systems
  • Stability Control
  • Emergency Braking Assist

2020 GMC Sierra 1500 Competition

GMC Sierra 1500 Regular Cab vs Ford F-150 regular cab

Both of the trucks have their own quirks and features. The Ford F-150 excels in some regards and lacks in others. The F-150 is lighter by quite a margin, has a more powerful engine, can haul more cargo and has better interiors. On the other hand, the 2020 GMC Sierra is that much more practical than the Ford as it has a bigger bed behind the seats and more room inside the cabin. They both are quite closely matched. 

2020 Ford F-150 Regular cab

GMC Sierra 1500 Regular Cab vs Chevrolet Silverado 1500 Regular cab

The GMC and the Chevy share the same engine, gearbox, chassis and what not. Even dimensionally both these trucks are exactly identical to one another. The only deciding factor can be the interiors that feel a tad bit better on the GMC as the Sierra is positioned as a luxury counterpart of the Silverado. 

2020 Silverado 1500 Regular cab

2020 GMC Sierra 1500 Final Verdict

The GMC Sierra 1500 is a very capable and trustworthy truck that has proved its mettle over the many years of service that it has endured. With a lot of experience under its belt, General Motor Twin with better interiors is a potential candidate for the throne of hauling king.

2020 GMC Sierra 1500 Overall Reviews


Donald S. Powell

Donald S. Powell 2020 GMC Sierra 1500 2dr Regular Cab LB 4WD (5.3L 8cyl 6A)

9

User Overall Rating

Posted On: June 15, 2020

GMC regular cab has ton of power to face more offroads drive.

Overall Review -

9

Overview Rating

it's nice one to have

9/10

Features

9/10

Interior

9/10

Design

9/10

Safety

9/10

Reliability

9/10

Deal Value

10/10

Dealer Review


Chris A. Murphy

Chris A. Murphy 2020 GMC Sierra 1500 2dr Regular Cab LB (4.3L 6cyl 6A)

10

User Overall Rating

Posted On: July 6, 2020

GMC Sierra is pretty good pickup to handle on the off roads.

Overall Review -

10

Overview Rating

I'm satisfied with performance.

10/10

Features

10/10

Interior

10/10

Design

10/10

Safety

10/10

Reliability

10/10

Deal Value

9/10

Dealer Review


Chester Y. Hein

Chester Y. Hein 2020 GMC Sierra 1500 2dr Regular Cab LB (5.3L 8cyl 6A)

9

User Overall Rating

Posted On: June 8, 2020

No attention to detail

Overall Review -

9

Overview Rating

Still the best 31 grand truck

9/10

Features

9/10

Interior

9/10

Design

9/10

Safety

9/10

Reliability

9/10

Deal Value

10/10

Dealer Review

Top User Reviews


9

User Overall Rating

"GMC regular cab has ton of power to face more offroads drive."

The power of the engine is pretty good that I could feel from when I slightly apply gas pedal that moves very smoothly on the road.
by Donald S. Powell

10

User Overall Rating

"GMC Sierra is pretty good pickup to handle on the off roads."

It easily drives me on the broken road and then it also pretty good for handling.
by Chris A. Murphy

9

User Overall Rating

"No attention to detail"

The pricing of Sierra is quite competitive and judging with respect to the price, it's the best truck to have in the garage. Comes handy because of the space and bed for daily drivers like me.
by Chester Y. Hein

10

User Overall Rating

"Loaded"

So many convenience features to make daily driving easy. A good amount of practicality depicts right from the design and the way it drives i.e, smooth. I can’t feel the difference between my Sonic and Sierra 1500 in terms of driving dynamics.
by Ronald D. Burgin