CoPilot AI-Assisted Car Shopping

 New Search
 Save
 Sort
 Share

Used 2020 GMC Sierra 1500 for Sale in Mesa, AZ

Sierra 1500s for Sale at Dealers

Filters
Price
Year
Mileage
Trim
2021 GMC Sierra 1500 Elevation 4WD photo
Price Drop
2021 GMC Sierra 1500 Elevation 4WD • Mesa, AZ
Silver • 3.0L I6 Engine
$32,083 • 96.7k miles
•••

Not Ranked

CoPilot AI: It’s an “A” Buy

  • $1,597 Price Drop
  • Good Price - $1,163 Below Market
  • Includes $3,750 Premium Upgrades
More details
2020 GMC Sierra 1500 SLT 4WD photo
Price Drop
2020 GMC Sierra 1500 SLT 4WD • Mesa, AZ
Red • 5.3L V8 Engine
$33,995 • 84.4k miles
•••

Not Ranked

CoPilot AI: It’s an “A+” Buy

  • $505 Price Drop
  • Great Price - $3,429 Below Market
  • Includes $8,274 Premium Upgrades
More details
2021 GMC Sierra 1500 AT4 4WD photo
Price Drop
2021 GMC Sierra 1500 AT4 4WD • Mesa, AZ
Black • 5.3L V8 Engine
$40,500 • 44.6k miles
•••

Not Ranked

CoPilot AI: It’s an “A” Buy

  • $490 Price Drop
  • Fair Price - $694 Below Market
  • Includes $7,635 Premium Upgrades
More details
2021 GMC Sierra 1500 AT4 4WD photo
Price Drop
2021 GMC Sierra 1500 AT4 4WD • Mesa, AZ
White • 6.2L V8 Engine
$43,500 • 41.4k miles
•••

Not Ranked

CoPilot AI: It’s an “A+” Buy

  • $495 Price Drop
  • Great Price - $7,557 Below Market
  • Includes $14,762 Premium Upgrades
More details
2021 GMC Sierra 1500 AT4 4WD photo
2021 GMC Sierra 1500 AT4 4WD • Mesa, AZ
Gray • 6.2L V8 Engine
$32,405 • 93.5k miles
•••

Not Ranked

CoPilot AI: It’s an “A-” Buy

  • Fair Price - $622 Above Market
  • Includes $1,851 Premium Upgrades
  • Motivation to Negotiate - Very High
More details
2020 GMC Sierra 1500 SLE RWD photo
Price Drop
2020 GMC Sierra 1500 SLE RWD • Mesa, AZ
Silver • 5.3L V8 Engine
$20,590 • 120.9k miles
•••

Not Ranked

CoPilot AI: It’s an “A” Buy

  • $1,000 Price Drop
  • Good Price - $1,153 Below Market
  • Includes $3,191 Premium Upgrades
More details
2020 GMC Sierra 1500 SLT RWD photo
2020 GMC Sierra 1500 SLT RWD • Mesa, AZ
Black • 5.3L V8 Engine
$29,590 • 81.8k miles
•••

Not Ranked

CoPilot AI: It’s an “A-” Buy

  • Fair Price - $579 Above Market
  • Includes $4,627 Premium Upgrades
  • Motivation to Negotiate - Increasing
More details
2020 GMC Sierra 1500 AT4 4WD photo
New Find
2020 GMC Sierra 1500 AT4 4WD • Mesa, AZ
Blue • 3.0L I6 Engine
$29,870 • 137.6k miles
•••

Not Ranked

CoPilot AI: It’s a “C+” Buy

  • Includes $3,884 Premium Upgrades
  • Dealer Rating - 4.4 stars
More details
2021 GMC Sierra 1500 SLE RWD photo
2021 GMC Sierra 1500 SLE RWD • Mesa, AZ
White • 5.3L V8 Engine
$19,237 • 148.7k miles
•••

Not Ranked

CoPilot AI: It’s a “B+” Buy

  • Great Price - $1,379 Below Market
  • Includes $681 Premium Upgrades
  • Motivation to Negotiate - Increasing
More details
2019 GMC Sierra 1500 SLT 4WD photo
Price Drop
2019 GMC Sierra 1500 SLT 4WD • Gilbert, AZ
Red • 5.3L V8 Engine
$36,616 • 37.2k miles
•••

Not Ranked

CoPilot AI: It’s an “A+” Buy

  • $1,180 Price Drop
  • Good Price - $1,583 Below Market
  • Includes $9,064 Premium Upgrades
More details
2019 GMC Sierra 1500 SLT 4WD photo
Price Drop
2019 GMC Sierra 1500 SLT 4WD • Gilbert, AZ
White • 5.3L V8 Engine
$31,789 • 92.9k miles
•••

Not Ranked

CoPilot AI: It’s an “A-” Buy

  • $472 Price Drop
  • Fair Price - $882 Below Market
  • Includes $8,470 Premium Upgrades
More details
2020 GMC Sierra 1500 Denali 4WD photo
Price Drop
2020 GMC Sierra 1500 Denali 4WD • Gilbert, AZ
Brown • 6.2L V8 Engine
$38,577 • 73.7k miles
•••

Not Ranked

CoPilot AI: It’s an “A-” Buy

  • $1,607 Price Drop
  • Fair Price - $144 Below Market
  • Includes $7,911 Premium Upgrades
More details
2021 GMC Sierra 1500 Denali 4WD photo
Price Drop
2021 GMC Sierra 1500 Denali 4WD • Gilbert, AZ
Gray • 3.0L I6 Engine
$34,806 • 80k miles
•••

Not Ranked

CoPilot AI: It’s an “A” Buy

  • $425 Price Drop
  • Good Price - $1,116 Below Market
  • Includes $2,228 Premium Upgrades
More details
2021 GMC Sierra 1500 Elevation RWD photo
New Find
2021 GMC Sierra 1500 Elevation RWD • Gilbert, AZ
White • 5.3L V8 Engine
$35,285 • 42.8k miles
•••

Not Ranked

CoPilot AI: It’s an “A-” Buy

  • Fair Price - $817 Below Market
  • Includes $1,421 Premium Upgrades
  • Very Low Mileage
More details
2021 GMC Sierra 1500 Denali 4WD photo
Price Drop
2021 GMC Sierra 1500 Denali 4WD • Gilbert, AZ
White • 3.0L I6 Engine
$37,401 • 62.1k miles
•••

Not Ranked

CoPilot AI: It’s a “C+” Buy

  • $256 Price Drop
  • Includes $1,261 Premium Upgrades
  • CARFAX: One Owner
More details
2021 GMC Sierra 1500 Elevation 4WD photo
Price Drop
2021 GMC Sierra 1500 Elevation 4WD • Chandler, AZ
Black • 3.0L I6 Engine
$32,166 • 86.4k miles
•••

Not Ranked

CoPilot AI: It’s a “B+” Buy

  • $500 Price Drop
  • Fair Price - $916 Above Market
  • Includes $2,316 Premium Upgrades
More details
2019 GMC Sierra 1500 AT4 4WD photo
2019 GMC Sierra 1500 AT4 4WD • Mesa, AZ
Red • 5.3L V8 Engine
$36,500 • 58.9k miles
•••

Not Ranked

CoPilot AI: It’s a “B-” Buy

  • Includes $1,343 Premium Upgrades
  • Motivation to Negotiate - Increasing
  • Very Low Mileage
More details
2021 GMC Sierra 1500 AT4 4WD photo
Price Drop
2021 GMC Sierra 1500 AT4 4WD • Gilbert, AZ
White • 6.2L V8 Engine
$41,072 • 61.6k miles
•••

Not Ranked

CoPilot AI: It’s an “A-” Buy

  • $500 Price Drop
  • Fair Price - $859 Above Market
  • Includes $7,157 Premium Upgrades
More details
2019 GMC Sierra 1500 SLT 4WD photo
Price Drop
2019 GMC Sierra 1500 SLT 4WD • Gilbert, AZ
Brown • 5.3L V8 Engine
$34,356 • 53.7k miles
•••

Not Ranked

CoPilot AI: It’s a “B-” Buy

  • $551 Price Drop
  • Includes $862 Premium Upgrades
  • CARFAX: One Owner
More details
2021 GMC Sierra 1500 Denali 4WD photo
Price Drop
2021 GMC Sierra 1500 Denali 4WD • Chandler, AZ
Gray • 6.2L V8 Engine
$47,247 • 8.1k miles
•••

Not Ranked

CoPilot AI: It’s a “C” Buy

  • $743 Price Drop
  • Includes $3,829 Premium Upgrades
  • CARFAX: One Owner
More details
2019 GMC Sierra 1500 AT4 4WD photo
2019 GMC Sierra 1500 AT4 4WD • Mesa, AZ
Black • 6.2L V8 Engine
$34,798 • 93.9k miles
•••

Not Ranked

CoPilot AI: It’s an “A” Buy

  • Good Price - $2,124 Below Market
  • Includes $7,873 Premium Upgrades
  • CARFAX: One Owner
More details
2019 GMC Sierra 1500 SLT 4WD photo
Price Drop
2019 GMC Sierra 1500 SLT 4WD • Chandler, AZ
Gray • 5.3L V8 Engine
$30,995 • 107k miles
•••

Not Ranked

CoPilot AI: It’s a “B-” Buy

  • $300 Price Drop
  • Includes $2,163 Premium Upgrades
  • Dealer Rating - 4.9 stars
More details
2021 GMC Sierra 1500 Elevation 4WD photo
Price Drop
2021 GMC Sierra 1500 Elevation 4WD • Scottsdale, AZ
Black • 3.0L I6 Engine
$35,498 • 76.7k miles
•••

Not Ranked

CoPilot AI: It’s an “A-” Buy

  • $491 Price Drop
  • Fair Price - $430 Above Market
  • Includes $3,528 Premium Upgrades
More details
2019 GMC Sierra 1500 AT4 4WD photo
2019 GMC Sierra 1500 AT4 4WD • Scottsdale, AZ
White • 6.2L V8 Engine
$34,990 • 95.9k miles
•••

Not Ranked

CoPilot AI: It’s an “A-” Buy

  • Fair Price - $464 Above Market
  • Includes $6,544 Premium Upgrades
  • CARFAX: One Owner
More details
2020 GMC Sierra 1500 AT4 4WD photo
Price Drop
2020 GMC Sierra 1500 AT4 4WD • Scottsdale, AZ
Black • 6.2L V8 Engine
$31,608 • 118.4k miles
•••

Not Ranked

CoPilot AI: It’s a “D+” Buy

  • $1,011 Price Drop
  • Includes $1,246 Premium Upgrades
  • Motivation to Negotiate - Very High
More details
1-25 of 111 results

2020 GMC Sierra 1500

Half-Ton Truck
Seats
6
Fuel Economy
16City MPG
21Hwy MPG
NHTSA Rating Summary
Copilot Rating
Dimensions

© 2026 CoPilot. All Rights Reserved.