Trim Report

GMC Sierra AT4X2020

Includes:15SIPU4WD|AT4X
$32,390
Starting From
3,522
Active Listings
—
Avg Mileage

Sourced from 3,522 dealer listings in the latest market snapshot as of

Min $32,390
Max $139,608
From $32,390
Fresh

AT4X Market Overview

All Trims Combined
From$12,980
$13K–$64K
1,643 listings88,694 avg miles
AT4
From$13,200
9,361 listings|$13K–$139K
AT4X
From$32,390
3,522 listings|$32K–$140K
Denali
From$1,000
12,458 listings|$1K–$100K
Denali Ultimate
From$45,135
3,663 listings|$45K–$101K
Elevation
From$15,885
15,507 listings|$16K–$109K
Limited
From$11,888
40 listings|$12K–$32K
Pro
From$15,000
5,542 listings|$15K–$95K
SL
From$2,000
36 listings|$2K–$17K
SLE
From$2,450
4,147 listings|$2K–$73K
SLT
From$925
15,203 listings|$925–$92K
W/T
From$750
86 listings|$750–$22K

2020 GMC Sierra AT4X Pricing

Price Trend

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3,522 reasons to be choosy.

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Where to Find GMC Sierra AT4X

Location data for all 2020 GMC Sierra trims combined

40States

Texas has the most inventory at 13%, with options spread across 40 states. Willing to ship? Your selection opens up significantly.

GMC Sierra Fuel Economy

EPA fuel economy data for all 2020 GMC Sierra trims

16–26mpg combined
·
15-23city
·
19-30hwy
·
$3,250-$4,800/yr

With 20 configurations tested, the 2020 GMC Sierra ranges from 16 to 26 MPG combined. That's a 10 MPG gap that can add up to hundreds of dollars a year in fuel costs.

By Trim
Sierra 2WD - Automatic 10-spd
26mpg
3.0L 6-cyl Turbo · Rear-Wheel DriveDiesel
23 city30 hwy~$3,250/yr5/10 Average
Sierra 4WD - Automatic 10-spd
24mpg
3.0L 6-cyl Turbo · 4-Wheel DriveDiesel
22 city26 hwy~$3,500/yr4/10 Average
Sierra 4WD AT4 - Automatic 10-spd
24mpg
3.0L 6-cyl Turbo · 4-Wheel DriveDiesel
22 city26 hwy~$3,500/yr4/10 Average
Sierra 2WD - Automatic 8-spd
20mpg
2.7L 4-cyl Turbo · Rear-Wheel Drive
19 city22 hwy~$3,400/yr4/10 Average
Sierra 4WD - Automatic 8-spd
20mpg
2.7L 4-cyl Turbo · 4-Wheel Drive
19 city22 hwy~$3,400/yr4/10 Average
Sierra 2WD - Automatic 8-spd
19mpg
5.3L 8-cyl · Rear-Wheel Drive
17 city23 hwy~$3,550/yr3/10 Poor
Sierra 4WD - Automatic 10-spd
19mpg
5.3L 8-cyl · 4-Wheel Drive
16 city22 hwy~$3,550/yr3/10 Poor
Sierra 4WD - Automatic 8-spd
18mpg
5.3L 8-cyl · 4-Wheel Drive
16 city22 hwy~$3,750/yr3/10 Poor
Sierra 4WD AT4 - Automatic 10-spd
18mpg
5.3L 8-cyl · 4-Wheel Drive
16 city21 hwy~$3,750/yr3/10 Poor
Sierra 2WD - Automatic 6-spd
17mpg
4.3L 6-cyl · Rear-Wheel Drive
16 city21 hwy~$3,950/yr3/10 Poor
Sierra 2WD - Automatic 6-spd
17mpg
5.3L 8-cyl · Rear-Wheel Drive
15 city21 hwy~$3,950/yr3/10 Poor
Sierra 4WD - Automatic 10-spd
17mpg
6.2L 8-cyl · 4-Wheel Drive
15 city20 hwy~$4,800/yr3/10 Poor
Sierra 4WD - Automatic 6-spd
17mpg
5.3L 8-cyl · 4-Wheel Drive
15 city20 hwy~$3,950/yr3/10 Poor
Sierra 4WD - Automatic 6-spd
17mpg
4.3L 6-cyl · 4-Wheel Drive
15 city20 hwy~$3,950/yr3/10 Poor
Sierra 4WD AT4 - Automatic 10-spd
17mpg
6.2L 8-cyl · 4-Wheel Drive
15 city19 hwy~$4,800/yr3/10 Poor

Source: U.S. Environmental Protection Agency (EPA)

2020 GMC Sierra AT4X FAQ

Trim-specific pricing and feature questions

How does the AT4X compare to other GMC Sierra trims?

The AT4X occupies a distinct position in the GMC Sierra range. See how it stacks up on the 2020 overview page.

What should I know about maintaining the 2020 GMC Sierra AT4X?

Maintenance costs for the AT4X align with the broader GMC Sierra ownership experience, though trim-specific equipment can add to routine costs. Check the 2020 GMC Sierra page for the full breakdown.

What are the best years for the GMC Sierra AT4X?

For the AT4X, look at the price-to-mileage ratio across model years. Later model years before a redesign tend to be the most refined version of the platform. See the GMC Sierra buyer's guide.

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