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Used Cars for Sale
GMC
Sierra 1500
SLT
Used GMC Sierra 1500 SLT for Sale in Middletown, DE
19709
Filters (4)
Items 1 to 2 of 12.
EV & Hybrid
GMC Certified Pre-Owned
(7)
Rear Wheel Drive
(1)
Leather Seats
(33)
6 Cylinder
(4)
Gray
(2)
1990 and newer
(33)
Black
(3)
AWD/4WD
(32)
Automatic
(33)
Premium Audio
(27)
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Payment
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Max Price
Make, Model & Trim
GMC
Models
Sierra 1500
Acadia
(103)
Caballero
Canyon
(33)
Envoy
(4)
Envoy XL
Envoy XUV
G1500
G2500
G3500
Hummer EV
(6)
Jimmy
Other GMC Models
S15 Jimmy
S15 Pickup
Safari
Savana 1500
(2)
Savana 2500
(28)
Savana 3500
(27)
Savana 4500
Sierra 1500
(195)
Sierra 2500
(41)
Sierra 3500
(11)
Sierra EV
(1)
Sonoma
(2)
Suburban
Syclone
Terrain
(118)
TopKick C4500
TopKick C5500
Typhoon
Yukon
(58)
Yukon XL
(47)
Sierra 1500 Trims
SLT
AT4
(19)
AT4X
(5)
C3
Carrera GTS
Classic
Classic Denali
Denali
(40)
Denali Ultimate
(14)
Elevation
(44)
Limited
Limited AT4
Limited Denali
Limited Elevation
Limited Pro
Limited SLE
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Pro
(17)
SL
SLE
(17)
SLT
(33)
Special
Sport
W/T
XFE
SLT Package
Any
SLT Premium Plus Package
(10)
Laser Blue Metallic Special Edition
Black Pack
SLT Crew Cab Premium Plus Package
(2)
SLT Preferred Package
(5)
Professional Package
Onstar Plus Package
Off-Road Package
Sun And Navigation Package
Sierra Performance Edition
SLE Value Package
LPO, Deluxe Chrome Package
SLT Convenience Package
Max Trailering Package
(3)
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
(1)
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
(5)
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
(5)
SLT Crew Cab Value Package
(1)
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
(5)
SLT Premium Package
(8)
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
All Terrain Slt Crew Cab "Plus" Package
Driver Alert Package I
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
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
Max Trailering Pack
SLT Preferred Equipment Group
Suspension Package, Off-Road"
Sierra Safety Plus Package
Add Another Make
GMC
Models
Sierra 1500
Acadia
(103)
Caballero
Canyon
(33)
Envoy
(4)
Envoy XL
Envoy XUV
G1500
G2500
G3500
Hummer EV
(6)
Jimmy
Other GMC Models
S15 Jimmy
S15 Pickup
Safari
Savana 1500
(2)
Savana 2500
(28)
Savana 3500
(27)
Savana 4500
Sierra 1500
(195)
Sierra 2500
(41)
Sierra 3500
(11)
Sierra EV
(1)
Sonoma
(2)
Suburban
Syclone
Terrain
(118)
TopKick C4500
TopKick C5500
Typhoon
Yukon
(58)
Yukon XL
(47)
Sierra 1500 Trims
SLT
AT4
(19)
AT4X
(5)
C3
Carrera GTS
Classic
Classic Denali
Denali
(40)
Denali Ultimate
(14)
Elevation
(44)
Limited
Limited AT4
Limited Denali
Limited Elevation
Limited Pro
Limited SLE
Limited SLT
Pro
(17)
SL
SLE
(17)
SLT
(33)
Special
Sport
W/T
XFE
SLT Package
Any
SLT Premium Plus Package
(10)
Laser Blue Metallic Special Edition
Black Pack
SLT Crew Cab Premium Plus Package
(2)
SLT Preferred Package
(5)
Professional Package
Onstar Plus Package
Off-Road Package
Sun And Navigation Package
Sierra Performance Edition
SLE Value Package
LPO, Deluxe Chrome Package
SLT Convenience Package
Max Trailering Package
(3)
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
(1)
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
(5)
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
(5)
SLT Crew Cab Value Package
(1)
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
(5)
SLT Premium Package
(8)
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
All Terrain Slt Crew Cab "Plus" Package
Driver Alert Package I
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
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
Max Trailering Pack
SLT Preferred Equipment Group
Suspension Package, Off-Road"
Sierra Safety Plus Package
Add Another Make
Mileage
Mileage
Any
Mileage
Any
Condition
(1 selected)
New
(38)
Used
(33)
Manufacturer Certified
(7)
Third-Party Certified
(3)
Certified Program
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New
(38)
Used
(33)
Manufacturer Certified
(7)
Third-Party Certified
(3)
Certified Program
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Color
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Body Style
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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
(32)
Medium
(1)
Long
(0)
Include unspecified lengths
(0)
Short
(32)
Medium
(1)
Long
(0)
Include unspecified lengths
(0)
Vehicle History
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Features
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Fuel Type
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Fuel Economy
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Transmission
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Cylinders
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Engine Displacement
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Number of Seats
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Number of Doors
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Purchase Options
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Sponsored by i.g. Burton Lewes Automall
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Used 2023 GMC Sierra 1500 SLT w/ SLT Premium Package
46,499
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360°
Used
2021 GMC Sierra 1500
SLT
17K mi
37,675
See payment
No Accidents
Newly Listed
Used
2026 GMC Sierra 1500
SLT
5K mi
49,947
See payment
CarBravo Certified
2026 GMC Sierra 1500
SLT
9 mi
63,900
See payment
No Accidents
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Credit Rating
Excellent (740-900)
Very Good (700-739)
Good (670-699)
Fair (630-669)
Rebuilding (580-629)
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Newly Listed
Used
2026 GMC Sierra 1500
SLT
5K mi
49,947
See payment
Price Drop
Used
2022 GMC Sierra 1500
SLT
40K mi
38,961
See payment
No Accidents
Consider New, Similar Payment
2026 GMC Sierra 1500
SLT
1 mi
63,100
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360°
Used
2021 GMC Sierra 1500
SLT
17K mi
37,675
See payment
No Accidents
Used
2022 GMC Sierra 1500
SLT
44K mi
43,195
See payment
No Accidents
360°
Used
2026 GMC Sierra 1500
SLT
4K mi
59,775
See payment
No Accidents
Price Drop
CarBravo Certified
2023 GMC Sierra 1500
SLT
40K mi
47,587
See payment
Dealer Fees Included
No Accidents
Used
2026 GMC Sierra 1500
SLT
14K mi
48,946
See payment
No Accidents
Advertisement
Ford Blue Certified
2025 GMC Sierra 1500
SLT
12K mi
47,498
See payment
Dealer Fees Included
CarBravo Certified
2024 GMC Sierra 1500
SLT
5K mi
54,595
See payment
No Accidents
CarBravo Certified
2026 GMC Sierra 1500
SLT
9 mi
63,900
See payment
No Accidents
Price Drop
CarBravo Certified
2022 GMC Sierra 1500
SLT
37K mi
46,993
See payment
No Accidents
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Used
2024 GMC Sierra 1500
SLT
43K mi
44,887
See payment
No Accidents
Used
2025 GMC Sierra 1500
SLT
63K mi
38,636
See payment
No Accidents
Used
2018 GMC Sierra 1500
SLT
138K mi
24,477
See payment
No Accidents
CarBravo Certified
2026 GMC Sierra 1500
SLT
9 mi
64,900
See payment
No Accidents
Price Drop
Used
2020 GMC Sierra 1500
SLT
81K mi
35,996
See payment
Used
2024 GMC Sierra 1500
SLT
21K mi
42,900
See payment
No Accidents
Ford Blue Certified
2018 GMC Sierra 1500
SLT
109K mi
25,990
See payment
No Accidents
Used
2021 GMC Sierra 1500
SLT
92K mi
32,490
See payment
Price Drop
Used
2024 GMC Sierra 1500
SLT
57K mi
45,513
See payment
No Accidents
Price Drop
CarBravo Certified
2025 GMC Sierra 1500
SLT
30K mi
40,874
See payment
No Accidents
Used
2025 GMC Sierra 1500
SLT
38K mi
48,995
See payment
No Accidents
Ford Blue Certified
2023 GMC Sierra 1500
SLT
41K mi
45,609
See payment
No Accidents
Used
2015 GMC Sierra 1500
SLT
148K mi
21,695
See payment
No Accidents
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