2018 GMC Sierra

$8,216
from
1,060
listings
$8K–$50K
price range
Download Infographic
Low$8,216
High$50,000
From$8,216
Avg Mileage104,387 mi
(26d ago)

Sourced from 1,060 dealer listings in the latest market snapshot as of

2018 GMC Sierra Trims

All Trims Combined
From$8,216
$8K–$50K
1,060 listings104,387 avg miles
AT4
From$1,000
9,157 listings|$1K–$140K
AT4X
From$36,137
3,318 listings|$36K–$99K
Denali
From$7,349
13,886 listings|$7K–$97K
Denali Ultimate
From$38,885
3,052 listings|$39K–$98K
Elevation
From$11,900
16,693 listings|$12K–$97K
Limited
From$8,975
39 listings|$9K–$29K
Pro
From$5,650
5,165 listings|$6K–$125K
SL
From$2,500
41 listings|$3K–$16K
SLE
From$1,400
3,277 listings|$1K–$80K
SLT
From$4,262
18,900 listings|$4K–$96K
W/T
From$550
90 listings|$550–$22K

2018 GMC Sierra Pricing

Price Trend

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In-depth buying guide
Used GMC Sierra 1500 GMT900 (2007-2013): Buyer's Guide

GMC Sierra Fuel Economy

17–20mpg combined
·
15-18city
·
19-24hwy
·
$3,100-$4,450/yr

The 2018 GMC Sierra delivers 17 to 20 MPG combined across 14 powertrain combinations. If fuel cost matters to you, pay attention to engine and drivetrain. The spread is significant.

By Trim
Sierra 15 Hybrid 2WD - Automatic 8-spd
20mpg
5.3L 8-cyl · Rear-Wheel Drive
18 city24 hwy~$3,100/yr4/10 Average
Sierra C15 2WD - Automatic 6-spd
20mpg
4.3L 6-cyl · Rear-Wheel Drive
18 city24 hwy~$3,100/yr4/10 Average
Sierra C15 2WD - Automatic 6-spd
19mpg
5.3L 8-cyl · Rear-Wheel Drive
16 city23 hwy~$3,250/yr3/10 Poor
Sierra K15 4WD - Automatic 6-spd
19mpg
4.3L 6-cyl · 4-Wheel Drive
17 city22 hwy~$3,250/yr3/10 Poor
Sierra 15 Hybrid 4WD - Automatic 8-spd
18mpg
5.3L 8-cyl · 4-Wheel Drive
16 city21 hwy~$3,400/yr3/10 Poor
Sierra C15 2WD - Automatic 8-spd
18mpg
5.3L 8-cyl · Rear-Wheel Drive
16 city22 hwy~$3,400/yr3/10 Poor
Sierra K15 4WD - Automatic 6-spd
18mpg
5.3L 8-cyl · 4-Wheel Drive
16 city22 hwy~$3,400/yr3/10 Poor
Sierra C15 2WD - Automatic 8-spd
17mpg
6.2L 8-cyl · Rear-Wheel Drive
15 city21 hwy~$4,450/yr3/10 Poor
Sierra C15 Cab Chassis 2WD - Automatic 6-spd
17mpg
5.3L 8-cyl · Rear-Wheel Drive
15 city20 hwy~$3,600/yr3/10 Poor
Sierra K15 4WD - Automatic 8-spd
17mpg
6.2L 8-cyl · 4-Wheel Drive
15 city20 hwy~$4,450/yr3/10 Poor
Sierra K15 4WD - Automatic 8-spd
17mpg
5.3L 8-cyl · 4-Wheel Drive
15 city20 hwy~$3,600/yr3/10 Poor
Sierra K15 Cab Chassis 4WD - Automatic 6-spd
17mpg
5.3L 8-cyl · 4-Wheel Drive
15 city19 hwy~$3,600/yr3/10 Poor

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

Where to Find 2018 GMC Sierra

40States

Texas has the most inventory at 15%, with options spread across 40 states. Willing to ship? Your selection opens up significantly.

Geographic distribution reflects all active listings for this model, not just 2018.

2018 GMC Sierra: Questions Buyers Ask

Pricing, reliability, and ownership answers

Is the 2018 GMC Sierra a good car to buy?

The 2018 GMC Sierra has its strengths and its watch-outs. Check the safety section for recall details and the pricing data to see if the numbers work for you.

What's the gas mileage of the 2018 GMC Sierra?

Depending on configuration, the 2018 GMC Sierra delivers 17–20 MPG combined. Choose wisely. The full comparison shows how engine choice affects your wallet.

How does the 2018 compare to other GMC Sierra years?

Each GMC Sierra model year has different pricing, recall counts, and owner satisfaction patterns. Compare all available years on the GMC Sierra overview page.

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