(opens in new window)

Sign In

Home
Used Cars
New Cars
Private Seller Cars
Sell My Car
Instant Cash Offer
- 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 ModeBeta

Home
Used Cars
New Cars
Private Seller Cars
Sell My Car
Instant Cash Offer
AI ModeBeta

Skip to vehicle Listings

Online car buying built around you. Shop Now

Used Cars for SaleGMCSierra 2500SLT

Used GMC Sierra 2500 SLT for Sale in Seguin, TX

78155

Filters (4)

Items 1 to 2 of 6.

Location & Delivery

Year

Price & Payments

Price selected

Min Price

Max Price

Price Rating

Good Price (0)

Great Price (1)

Price selected

Min Price

Max Price

Price Rating

Good Price (0)

Great Price (1)

Make, Model & Trim

GMC

Models

Sierra 2500

Acadia (53)

Caballero

Canyon (28)

Envoy

Envoy XL

Envoy XUV

G1500

G2500

G3500

Hummer EV (3)

Jimmy

Other GMC Models

S15 Jimmy

S15 Pickup

Safari

Savana 1500

Savana 2500 (2)

Savana 3500 (1)

Savana 4500

Sierra 1500 (231)

Sierra 2500 (80)

Sierra 3500 (16)

Sierra EV

Sonoma (1)

Suburban (1)

Syclone

Terrain (60)

TopKick C4500

TopKick C5500

Typhoon

Yukon (97)

Yukon XL (52)

Sierra 2500 Trims

SLT

AT4 (20)

AT4X (3)

Classic SL

Classic SLE

Classic SLT

Classic W/T

Denali (27)

Denali Ultimate (17)

Pro (3)

SL

SLE (2)

SLT (5)

W/T (2)

SLT Package

Any

Onstar Plus Package

SLT Preferred Package (1)

SLT Premium Plus Package

LPO, Hitch Package

All Terrain HD Package

Sun And Navigation Package

SLT Convenience Package (1)

Convenience Package

Snow Plow Prep Package

Max Trailering Package

License Plate Front Mounting Package

Gooseneck/5th Wheel Prep Package (1)

EZ-Lift Tailgate Package

X31 Off-Road and Protection Package (1)

Texas SLT Premium Package (1)

Driver Alert Package II

LPO, Chrome Appearance Package

LPO, Cargo Convenience Package

LPO, GMC Interior Protection Package

Sierra HD Pro Safety Plus Package

Heavy Duty Front Spring/Camper Package

X31 Off-Road Package

Entertainment Package, Rear Seat DVD/Blu-Ray Player

LPO, Black Badging Package

SLT Premium Package (1)

Suspension Package, Off-Road

Duramax Plus Package (1)

Skid Plate Package, Frame-Mounted Shields

Texas Edition SLT Premium Plus Package

Heavy-Duty Power Package

Driver Alert Package

Z71 Off-Road Package

LPO, Protection Package

Driver Alert Package I (1)

All Terrain X HD Package

Deep Indigo Metallic Edition

LPO, On The Job Package

Snow Plow Prep/Camper Package

Gooseneck/5TH Wheel Prep Package (1)

Gooseneck/5TH Wheel Package

LPO, Assist Step and Floor Liner Package

Mocha Steel Metallic Edition

Technology Package

SLT Preferred Equipment Group

Skid Plate Package

LPO, GMC Protection Package

2500HD SLT Gas Premium Plus Package

All-Terrain HD Package

Entertainment Package

Graphite Blue Metallic Edition

GMC

Models

Sierra 2500

Acadia (53)

Caballero

Canyon (28)

Envoy

Envoy XL

Envoy XUV

G1500

G2500

G3500

Hummer EV (3)

Jimmy

Other GMC Models

S15 Jimmy

S15 Pickup

Safari

Savana 1500

Savana 2500 (2)

Savana 3500 (1)

Savana 4500

Sierra 1500 (231)

Sierra 2500 (80)

Sierra 3500 (16)

Sierra EV

Sonoma (1)

Suburban (1)

Syclone

Terrain (60)

TopKick C4500

TopKick C5500

Typhoon

Yukon (97)

Yukon XL (52)

Sierra 2500 Trims

SLT

AT4 (20)

AT4X (3)

Classic SL

Classic SLE

Classic SLT

Classic W/T

Denali (27)

Denali Ultimate (17)

Pro (3)

SL

SLE (2)

SLT (5)

W/T (2)

SLT Package

Any

Onstar Plus Package

SLT Preferred Package (1)

SLT Premium Plus Package

LPO, Hitch Package

All Terrain HD Package

Sun And Navigation Package

SLT Convenience Package (1)

Convenience Package

Snow Plow Prep Package

Max Trailering Package

License Plate Front Mounting Package

Gooseneck/5th Wheel Prep Package (1)

EZ-Lift Tailgate Package

X31 Off-Road and Protection Package (1)

Texas SLT Premium Package (1)

Driver Alert Package II

LPO, Chrome Appearance Package

LPO, Cargo Convenience Package

LPO, GMC Interior Protection Package

Sierra HD Pro Safety Plus Package

Heavy Duty Front Spring/Camper Package

X31 Off-Road Package

Entertainment Package, Rear Seat DVD/Blu-Ray Player

LPO, Black Badging Package

SLT Premium Package (1)

Suspension Package, Off-Road

Duramax Plus Package (1)

Skid Plate Package, Frame-Mounted Shields

Texas Edition SLT Premium Plus Package

Heavy-Duty Power Package

Driver Alert Package

Z71 Off-Road Package

LPO, Protection Package

Driver Alert Package I (1)

All Terrain X HD Package

Deep Indigo Metallic Edition

LPO, On The Job Package

Snow Plow Prep/Camper Package

Gooseneck/5TH Wheel Prep Package (1)

Gooseneck/5TH Wheel Package

LPO, Assist Step and Floor Liner Package

Mocha Steel Metallic Edition

Technology Package

SLT Preferred Equipment Group

Skid Plate Package

LPO, GMC Protection Package

2500HD SLT Gas Premium Plus Package

All-Terrain HD Package

Entertainment Package

Graphite Blue Metallic Edition

Mileage

Condition (1 selected)

New (19)

Used (5)

Manufacturer Certified (1)

Third-Party Certified (0)

Certified Program

Learn more

New (19)

Used (5)

Manufacturer Certified (1)

Third-Party Certified (0)

Certified Program

Learn more

Color

Drive Type

Body Style

Truck Cab Size

Crew Cab (4)

Extended Cab (1)

Regular Cab (0)

Crew Cab (4)

Extended Cab (1)

Regular Cab (0)

Truck Bed Length

Short (0)

Medium (5)

Long (0)

Include unspecified lengths (0)

Short (0)

Medium (5)

Long (0)

Include unspecified lengths (0)

Vehicle History

Features

Fuel Type

Fuel Economy

Transmission

Cylinders

Engine Displacement

Number of Seats

Number of Doors

Purchase Options

Seller Type

Sponsored by Gunn Buick GMC

Hide

Used 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package

Used 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package

69,986

Good Price

Similar Match

Gunn Buick GMC

220View Vehicles

5 Matches

Sort By:

Used 2024 GMC Sierra 2500 SLT w/ SLT Premium Package

Used

2024 GMC Sierra 2500

SLT
45K mi

60,980

See payment

Great Price

Sponsored by San Antonio Dodge Chrysler Jeep

23.92 mi. away

Certified 2026 GMC Sierra 2500 SLT w/ Texas SLT Premium Package

Certified

2026 GMC Sierra 2500

SLT
119 mi

75,991

See payment

Sponsored by Cavender Buick GMC West

44.11 mi. away

Online Paperwork

Used 2015 GMC Sierra 2500 SLT

Used

2015 GMC Sierra 2500

SLT
87K mi

30,991

See payment

Cavender Buick GMC West

44.11 mi. away

Online Paperwork

My Wallet

Find it Fast.

Keep it Affordable.

Monthly Payment

Credit Score

Excellent (740-900)

Very Good (700-739)

Good (670-699)

Fair (630-669)

Rebuilding (580-629)

Verify My Credit

Down Payment

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

Certified 2026 GMC Sierra 2500 SLT w/ Texas SLT Premium Package

Certified

2026 GMC Sierra 2500

SLT
119 mi

75,991

See payment

Cavender Buick GMC West

44.11 mi. away

Online Paperwork

Used 2019 GMC Sierra 2500 SLT w/ Duramax Plus Package

Used

2019 GMC Sierra 2500

SLT
100K mi

45,511

See payment

Cavender Buick GMC West

44.11 mi. away

Online Paperwork

New 2026 GMC Sierra 2500 SLT

Consider New, Similar Payment

2026 GMC Sierra 2500

SLT
0 mi

67,420

Cavender Buick GMC North

30.51 mi. away

Online Paperwork

Advertisement

Used 2024 GMC Sierra 2500 SLT w/ SLT Premium Package

Used

2024 GMC Sierra 2500

SLT
45K mi

60,980

See payment

Great Price

San Antonio Dodge Chrysler Jeep

23.92 mi. away

Used 2022 GMC Sierra 2500 SLT w/ SLT Preferred Package

Used

2022 GMC Sierra 2500

SLT
182K mi

41,900

See payment

Country Auto Mart LLC

13.05 mi. away

Advertisement

Similar Vehicles for Sale

Used 2023 GMC Sierra 2500 SLT for Sale
Used 2025 GMC Sierra 2500 SLT for Sale
Used 2020 GMC Sierra 2500 SLT for Sale
Used 2024 GMC Sierra 2500 SLT for Sale
1 for sale
Used 2026 GMC Sierra 2500 SLT for Sale
1 for sale

View All Similar Vehicles

Used GMC Sierra 2500 SLT in Nearby Cities

Used GMC Sierra 2500 SLT For Sale in Arlington
20 for sale
Used GMC Sierra 2500 SLT For Sale in Fort Worth
18 for sale
Used GMC Sierra 2500 SLT For Sale in Frisco
16 for sale
Used GMC Sierra 2500 SLT For Sale in Dallas
13 for sale
Used GMC Sierra 2500 SLT For Sale in Plano
12 for sale
Used GMC Sierra 2500 SLT For Sale in Mckinney
12 for sale
Used GMC Sierra 2500 SLT For Sale in Houston
10 for sale
Used GMC Sierra 2500 SLT For Sale in Austin
8 for sale
Used GMC Sierra 2500 SLT For Sale in San Antonio
5 for sale
Used GMC Sierra 2500 SLT For Sale in Abilene
5 for sale
Used GMC Sierra 2500 SLT For Sale in Killeen
3 for sale
Used GMC Sierra 2500 SLT For Sale in Lubbock
3 for sale

View All Cities

Shop for a Car

Used Cars for Sale
Certified Cars for Sale
New Cars for Sale
For Sale By Owner
Car Deals

Sell Your Car

List Your Car for Sale
How to Sell a Car
Trade-In Values and Car Pricing from Kelley Blue Book®

About Us

About Autotrader
About Cox Automotive
Jobs at Autotrader
Become an Autotrader Dealer
Press Room
Site Map
Fraud Awareness
Contact Us

Autotrader Affiliates

Classic Cars & Trucks for Sale
Motorcycles for Sale
RVs for Sale
Cars for Bad Credit Buyers
Find Cars for Sale in Australia

Privacy Notice & Options

Privacy Notice
Do Not Sell or Share My Personal Information
Limit the Use of My Sensitive Personal Information
Manage Cookies

Download on the Apple App Store

Get it on Google Play

Follow

By using this service, you accept the terms of our Visitor Agreement and Accessibility Statement.

©2026 Autotrader, Inc. All Rights Reserved. "Autotrader" is a registered trademark of TPI Holdings, Inc. used under exclusive license.