(opens in new window)
Sign In
Home
Used Cars
New Cars
Private Seller Cars
Sell My Car
Instant Cash Offer
Research & Tools
Helpful Links
Find Local Dealers
Best Car Deals
Best Truck Deals
Best SUV Deals
Buy Cars Online
Car Research & News
Research & Information
New & Future Models
Trim Comparisons
Car Buying Tools
Buying & Selling Tips
Car Payment Calculator
Affordability Calculator
Car Lease Calculator
See if you can save on car insurance on KBB.com
Get a Kelley Blue Book® Instant Cash Offer
Run a free AutoCheck Vehicle History Report with Experian
AI Mode
Beta
Home
Used Cars
New Cars
Private Seller Cars
Sell My Car
Instant Cash Offer
Research & Tools
AI Mode
Beta
Skip to vehicle Listings
Your next car is just a chat away.
Try AI Mode
Used Cars for Sale
GMC
Sierra 1500
SLT
Used GMC Sierra 1500 SLT for Sale in Waterloo, IL
62298
Filters (4)
Items 1 to 2 of 12.
EV & Hybrid
Purchase Online
(22)
GMC Certified Pre-Owned
(9)
2010 and newer
(99)
Black
(23)
AWD/4WD
(98)
Premium Audio
(81)
Rear Wheel Drive
(2)
Automatic
(100)
Leather Seats
(91)
Backup Camera
(90)
Location & Delivery
Year
Price & Payments
Price selected
Price
Payment
Min Price
Max Price
Price selected
Price
Payment
Min Price
Max Price
Make, Model & Trim
GMC
Models
Sierra 1500
Acadia
(146)
Caballero
Canyon
(56)
Envoy
Envoy XL
Envoy XUV
G1500
G2500
G3500
Hummer EV
(7)
Jimmy
Other GMC Models
S15 Jimmy
S15 Pickup
Safari
Savana 1500
(2)
Savana 2500
(11)
Savana 3500
(4)
Savana 4500
Sierra 1500
(385)
Sierra 2500
(117)
Sierra 3500
(37)
Sierra EV
(1)
Sonoma
Suburban
Syclone
Terrain
(145)
TopKick C4500
TopKick C5500
Typhoon
Yukon
(119)
Yukon XL
(59)
Sierra 1500 Trims
SLT
AT4
(54)
AT4X
(16)
C3
Carrera GTS
Classic
Classic Denali
Denali
(75)
Denali Ultimate
(15)
Elevation
(60)
Limited
Limited AT4
Limited Denali
Limited Elevation
Limited Pro
Limited SLE
Limited SLT
Pro
(29)
SL
SLE
(24)
SLT
(100)
Special
Sport
W/T
(1)
XFE
SLT Package
Any
SLT Premium Plus Package
(22)
Laser Blue Metallic Special Edition
Black Pack
SLT Crew Cab Premium Plus Package
(6)
SLT Preferred Package
(27)
Onstar Plus Package
Professional Package
Off-Road Package
Sierra Performance Edition
Sun And Navigation Package
SLE Value Package
LPO, Deluxe Chrome Package
SLT Convenience Package
(5)
Max Trailering Package
(5)
LPO, Assist Step and Tonneau Package
Snow Plow Prep Package
Texas SLT Crew Cab Value Package
LPO, Bed Protection Package
SLE/SLT Trailering Package
Convenience Package
Entertainment Package, Rear Seat DVD Player
Sierra Special Edition
All Terrain X Edition
Chrome Essentials Package
LPO, Chrome Package
LPO, Cargo Convenience Package
Texas Edition SLT Premium Package
(1)
Texas SLT Premium Package
LPO, Chrome Appearance Package
SLT Eassist Package
Enhanced Driver Alert Package
LPO, GMC Interior Protection Package
All Terrain SLT Premium Package
Driver Alert Package II
LPO, Underbody Shield Package, Transfer Case Protection
X31 Off-Road and Protection Package
(16)
Light Duty Power Package
EZ-Lift Tailgate Package
Sierra Fleet Convenience Package
Entertainment Package, Rear Seat DVD/Blu-Ray Player
LPO, Performance Upgrade Package
X31 Off-Road Package
(17)
SLT Crew Cab Value Package
(3)
LPO, Under Body Shield Package, Transfer Case Protection
SLT White Diamond Edition
White Diamond Edition
Limited Appearance Package
LPO, Black Badging Package
Laser Blue Special Edition
Suspension Package, Off-Road
(15)
SLT Premium Package
(41)
White Diamond Tricoat Edition
Texas Edition SLT Premium Plus Package
All Terrain Package
All Terrain X Package
SLT Crew Cab Value Plus Package
Suspension Package, Ride-Control, Manual Selectable
Vortex Max Performance Pack
Body Color All-Terrain Package
Driver Alert Package
(1)
All Terrain Slt Crew Cab "Plus" Package
(1)
Driver Alert Package I
(4)
LPO, Protection Package
LPO, On The Job Package
Deep Indigo Metallic Edition
Mineral Green Metallic Edition
Trailer Camera Package
Heritage Edition
Texas SLT Crew Cab Value Plus Package
Z71 Off-Road Package
Vortecmax Performance Pack
All-Terrain Package
(1)
Mocha Steel Metallic Edition
Technology Package
LPO, Essentials Package
Entertainment Package, RearSeat DVD Player With LCD Display and 2 Sets of Wireless Headphones
Safe And Sound Package
LPO, Utility Wall Package
Entertainment Package
Skid Plate Package
Graphite Blue Metallic Edition
LPO, GMC Protection Package
(2)
Max Trailering Pack
SLT Preferred Equipment Group
(1)
Suspension Package, Off-Road"
Sierra Safety Plus Package
(2)
Add Another Make
GMC
Models
Sierra 1500
Acadia
(146)
Caballero
Canyon
(56)
Envoy
Envoy XL
Envoy XUV
G1500
G2500
G3500
Hummer EV
(7)
Jimmy
Other GMC Models
S15 Jimmy
S15 Pickup
Safari
Savana 1500
(2)
Savana 2500
(11)
Savana 3500
(4)
Savana 4500
Sierra 1500
(385)
Sierra 2500
(117)
Sierra 3500
(37)
Sierra EV
(1)
Sonoma
Suburban
Syclone
Terrain
(145)
TopKick C4500
TopKick C5500
Typhoon
Yukon
(119)
Yukon XL
(59)
Sierra 1500 Trims
SLT
AT4
(54)
AT4X
(16)
C3
Carrera GTS
Classic
Classic Denali
Denali
(75)
Denali Ultimate
(15)
Elevation
(60)
Limited
Limited AT4
Limited Denali
Limited Elevation
Limited Pro
Limited SLE
Limited SLT
Pro
(29)
SL
SLE
(24)
SLT
(100)
Special
Sport
W/T
(1)
XFE
SLT Package
Any
SLT Premium Plus Package
(22)
Laser Blue Metallic Special Edition
Black Pack
SLT Crew Cab Premium Plus Package
(6)
SLT Preferred Package
(27)
Onstar Plus Package
Professional Package
Off-Road Package
Sierra Performance Edition
Sun And Navigation Package
SLE Value Package
LPO, Deluxe Chrome Package
SLT Convenience Package
(5)
Max Trailering Package
(5)
LPO, Assist Step and Tonneau Package
Snow Plow Prep Package
Texas SLT Crew Cab Value Package
LPO, Bed Protection Package
SLE/SLT Trailering Package
Convenience Package
Entertainment Package, Rear Seat DVD Player
Sierra Special Edition
All Terrain X Edition
Chrome Essentials Package
LPO, Chrome Package
LPO, Cargo Convenience Package
Texas Edition SLT Premium Package
(1)
Texas SLT Premium Package
LPO, Chrome Appearance Package
SLT Eassist Package
Enhanced Driver Alert Package
LPO, GMC Interior Protection Package
All Terrain SLT Premium Package
Driver Alert Package II
LPO, Underbody Shield Package, Transfer Case Protection
X31 Off-Road and Protection Package
(16)
Light Duty Power Package
EZ-Lift Tailgate Package
Sierra Fleet Convenience Package
Entertainment Package, Rear Seat DVD/Blu-Ray Player
LPO, Performance Upgrade Package
X31 Off-Road Package
(17)
SLT Crew Cab Value Package
(3)
LPO, Under Body Shield Package, Transfer Case Protection
SLT White Diamond Edition
White Diamond Edition
Limited Appearance Package
LPO, Black Badging Package
Laser Blue Special Edition
Suspension Package, Off-Road
(15)
SLT Premium Package
(41)
White Diamond Tricoat Edition
Texas Edition SLT Premium Plus Package
All Terrain Package
All Terrain X Package
SLT Crew Cab Value Plus Package
Suspension Package, Ride-Control, Manual Selectable
Vortex Max Performance Pack
Body Color All-Terrain Package
Driver Alert Package
(1)
All Terrain Slt Crew Cab "Plus" Package
(1)
Driver Alert Package I
(4)
LPO, Protection Package
LPO, On The Job Package
Deep Indigo Metallic Edition
Mineral Green Metallic Edition
Trailer Camera Package
Heritage Edition
Texas SLT Crew Cab Value Plus Package
Z71 Off-Road Package
Vortecmax Performance Pack
All-Terrain Package
(1)
Mocha Steel Metallic Edition
Technology Package
LPO, Essentials Package
Entertainment Package, RearSeat DVD Player With LCD Display and 2 Sets of Wireless Headphones
Safe And Sound Package
LPO, Utility Wall Package
Entertainment Package
Skid Plate Package
Graphite Blue Metallic Edition
LPO, GMC Protection Package
(2)
Max Trailering Pack
SLT Preferred Equipment Group
(1)
Suspension Package, Off-Road"
Sierra Safety Plus Package
(2)
Add Another Make
Mileage
Mileage
Any
Mileage
Any
Condition
(1 selected)
New
(299)
Used
(100)
Manufacturer Certified
(9)
Third-Party Certified
(1)
Certified Program
Learn more
New
(299)
Used
(100)
Manufacturer Certified
(9)
Third-Party Certified
(1)
Certified Program
Learn more
Color
Loading...
Drive Type
Loading...
Body Style
Loading...
Truck Cab Size
Crew Cab
(2)
Extended Cab
(0)
Regular Cab
(0)
Crew Cab
(2)
Extended Cab
(0)
Regular Cab
(0)
Truck Bed Length
Short
(87)
Medium
(13)
Long
(0)
Include unspecified lengths
(0)
Short
(87)
Medium
(13)
Long
(0)
Include unspecified lengths
(0)
Vehicle History
Loading...
Features
Loading...
Fuel Type
Loading...
Fuel Economy
Loading...
Transmission
Loading...
Cylinders
Loading...
Engine Displacement
Loading...
Number of Seats
Loading...
Number of Doors
Loading...
Purchase Options
Seller Type
Loading...
Sponsored by Laura Buick GMC, Inc.
Hide
High Demand
Used 2020 GMC Sierra 1500 SLT w/ X31 Off-Road Package
32,995
Similar Match
1114
View Vehicles
100 Matches
Sort By:
Relevance
Price - Lowest
Price - Highest
Distance - Closest
Date - Oldest
Date - Newest
Mileage - Lowest
Mileage - Highest
Year - Oldest
Year - Newest
Used
2020 GMC Sierra 1500
SLT
88K mi
32,239
See payment
Dealer Fees Included
No Accidents
360°
Used
2019 GMC Sierra 1500
SLT
101K mi
29,749
See payment
No Accidents
Used
2020 GMC Sierra 1500
SLT
149K mi
28,936
See payment
No Accidents
My Wallet
Find it Fast.
Keep it Affordable.
Monthly Payment
Credit Rating
Excellent (740-900)
Credit Rating
Excellent (740-900)
Very Good (700-739)
Good (670-699)
Fair (630-669)
Rebuilding (580-629)
Verify My Credit
Down Payment
Trade-In Value
$0
Trade-In Value
Est. Trade-In Value
Get My Kelley Blue Book® CarValue
Amount Owed on Trade-In
Get My Payoff Quote
Get My Kelley Blue Book® Car Value
$
Based on 4.5% APR for mos.
Update Settings
Search Available Cars
Used
2020 GMC Sierra 1500
SLT
88K mi
32,239
See payment
Dealer Fees Included
No Accidents
Used
2024 GMC Sierra 1500
SLT
12K mi
51,481
See payment
Dealer Fees Included
No Accidents
Consider New, Similar Payment
2026 GMC Sierra 1500
SLT
7 mi
59,300
Advertisement
Newly Listed
Used
2014 GMC Sierra 1500
SLT
36K mi
26,548
See payment
Dealer Fees Included
No Accidents
Sponsored
Item 1 of 4.
Used
2022 GMC Sierra 1500
SLT
24K mi
45,990
See payment
No Accidents
Newly Listed
Used
2017 GMC Sierra 1500
SLT
106K mi
27,098
See payment
Dealer Fees Included
Newly Listed
Used
2023 GMC Sierra 1500
SLT
15K mi
48,995
See payment
No Accidents
Newly Listed
Used
2020 GMC Sierra 1500
SLT
81K mi
33,995
See payment
No Accidents
Advertisement
Used
2018 GMC Sierra 1500
SLT
131K mi
23,617
See payment
Dealer Fees Included
Used
2023 GMC Sierra 1500
SLT
65K mi
39,941
See payment
Dealer Fees Included
No Accidents
Used
2025 GMC Sierra 1500
SLT
41K mi
43,180
See payment
Dealer Fees Included
CarBravo Certified
2018 GMC Sierra 1500
SLT
69K mi
33,548
See payment
Dealer Fees Included
No Accidents
Advertisement
Price Drop
Used
2020 GMC Sierra 1500
SLT
87K mi
30,987
See payment
Used
2022 GMC Sierra 1500
SLT
68K mi
36,691
See payment
Dealer Fees Included
No Accidents
Used
2018 GMC Sierra 1500
SLT
79K mi
32,177
See payment
No Accidents
Used
2023 GMC Sierra 1500
SLT
37K mi
46,850
See payment
No Accidents
Used
2015 GMC Sierra 1500
SLT
69K mi
26,495
See payment
No Accidents
Used
2019 GMC Sierra 1500
SLT
68K mi
35,995
See payment
No Accidents
Used
2021 GMC Sierra 1500
SLT
44K mi
39,995
See payment
No Accidents
High Demand
Used
2022 GMC Sierra 1500
SLT
30K mi
41,995
See payment
No Accidents
Used
2026 GMC Sierra 1500
SLT
6K mi
52,495
See payment
No Accidents
Price Drop
CarBravo Certified
2021 GMC Sierra 1500
SLT
94K mi
32,544
See payment
Dealer Fees Included
Newly Listed
Used
2018 GMC Sierra 1500
SLT
96K mi
29,242
See payment
No Accidents
High Demand
Used
2018 GMC Sierra 1500
SLT
82K mi
30,617
See payment
Used
2020 GMC Sierra 1500
SLT
177K mi
25,290
See payment
Dealer Fees Included
No Accidents
See More Results
Similar Vehicles for Sale
Used 2020 GMC Sierra 1500 SLT for Sale
12 for sale
Used 2023 GMC Sierra 1500 SLT for Sale
8 for sale
Used 2014 GMC Sierra 1500 SLT for Sale
2 for sale
Used 2021 GMC Sierra 1500 SLT for Sale
6 for sale
Used 2025 GMC Sierra 1500 SLT for Sale
16 for sale
Used 2013 GMC Sierra 1500 SLT for Sale
Used 2019 GMC Sierra 1500 SLT for Sale
7 for sale
Used 2018 GMC Sierra 1500 SLT for Sale
17 for sale
Used 2015 GMC Sierra 1500 SLT for Sale
3 for sale
Used 2026 GMC Sierra 1500 SLT for Sale
1 for sale
Used 2024 GMC Sierra 1500 SLT for Sale
9 for sale
Used 2006 GMC Sierra 1500 SLT for Sale
Used 2022 GMC Sierra 1500 SLT for Sale
13 for sale
Used 2016 GMC Sierra 1500 SLT for Sale
3 for sale
View All Similar Vehicles
Used GMC Sierra 1500 SLT in Nearby Cities
Used GMC Sierra 1500 SLT For Sale in Chicago
56 for sale
Used GMC Sierra 1500 SLT For Sale in Rockford
26 for sale
Used GMC Sierra 1500 SLT For Sale in Peoria
26 for sale
Used GMC Sierra 1500 SLT For Sale in Springfield
11 for sale
View All Cities
<!--{"relevance":[false,{}]}-->
Learn more
