Contact seller

Contact seller

By clicking here, you authorize Cars.com and its sellers/partners to contact you by text/calls which may include marketing and be by autodialer. Calls may be prerecorded. You also agree to our Privacy Notice. Consent is not required to purchase goods/services.

We value your privacy. Cars.com Privacy Notice

Customize your budget

Est. max vehicle price based on your desired monthly budget (...% APR*. and ...% sales tax)
$...*
See matching cars

*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.

**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.

About your privacy: Cars.com is asking for your ZIP and credit rating because it helps us to make an educated guess at your sales tax and loan interest. These two factors can greatly change your monthly payment.

New and used 2026 GMC Sierra 2500 SLT trucks for sale near Cahokia, IL

Filters 4 Year Trim Model Price & payment Make Mileage Ext. color All filters
43 matches 30 miles from 62206
Be the first to know!

Save your search and get notified when new inventory arrives.

Prequalify now

It only takes a few minutes and won't affect your credit.

Get Prequalified
Est. $400 /mo*
Down Payment
$0
Net trade-in value
$0
Months
72
APR
7.0%
Sales tax
0.0%

*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.

**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.

2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT View all 22 photos

New

2026 GMC Sierra 2500 SLT

$70,393 $500 price drop
Est. $1,306/mo*
Laura Buick GMC
(3,767 reviews)
Collinsville, IL (13 mi.)
Call Check availability Check availability

Vehicle information

Ext. color: Onyx Black
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 6.6L V8 16V GDI OHV
Stock #: L261520
VIN: 1GT4UNE74TF143057

Features

Convenience: Adaptive Cruise Control, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Remote Start
Entertainment: Apple CarPlay®, Bluetooth®, Premium Sound System, Satellite Radio, USB Port
Exterior: Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety: Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating: Leather Seats, Memory Seat

Reviews

Laura Buick GMC review

Justin was easy to work worth, made buying the 2026 truck

November 21, 2025
By JAMES ONKEN from Mason City, Illinois

Justin was easy to work worth, made buying the 2026 truck quite painless. Very knowledgeable. He was very prompt in returning my phone calls. Would buy from him again.
2026 GMC Sierra 2500 SLT

New

2026 GMC Sierra 2500 SLT

$69,005 $500 price drop
Est. $1,281/mo*
Lou Fusz Buick GMC
(1,001 reviews)
St. Louis, MO (16 mi.)
Call Check availability Check availability

Vehicle information

Ext. color: Onyx Black
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: Automatic
Engine: Gas V8 6.6L/
Stock #: BG330845
VIN: 1GT4UNE74TF172929

Features

Convenience: Adaptive Cruise Control, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Power Folding Mirrors, Remote Start
Entertainment: Apple CarPlay®, Bluetooth®, Premium Sound System, Satellite Radio, USB Port, WiFi Hotspot
Exterior: Alloy Wheels, Tow Hitch, Tow Hooks
Safety: Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating: Leather Seats, Memory Seat

Reviews

Lou Fusz Buick GMC review

Tyreese listened to my wants and even though my initial

September 26, 2025
By MICHELLE GARNETT from Saint Louis, Missouri

Tyreese listened to my wants and even though my initial choice sold prior to my arrival, he found me a better option. He was very knowledgeable about the cars features which made me love my car even more.
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT View all 32 photos

New

2026 GMC Sierra 2500 SLT

$78,304 MSRP $84,735 $500 price drop
Est. $1,453/mo*
Steve Schmitt, Inc.
(997 reviews)
Highland, IL (30 mi.)
Call Check availability Check availability

Vehicle information

Ext. color: Onyx Black
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Diesel
Transmission: Automatic
Engine: Duramax 6.6L V-8 diesel direct injection, intercooled turbo, die
Stock #: 38764
VIN: 1GT4UNEY4TF113002

Features

Convenience: Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment: Android Auto®, Apple CarPlay®, Bluetooth®, Premium Sound System, USB Port, WiFi Hotspot
Exterior: Alloy Wheels, Tow Hitch, Tow Hooks
Safety: Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating: Leather Seats, Memory Seat

Reviews

Steve Schmitt, Inc. review

Only negative I could say about the company and it isn?

November 3, 2025
By Wayne Young from Highland, Illinois

Only negative I could say about the company and it isn?t really a negative is that they don?t accept my vehicle warranty and other dealerships do and it has been proven to pay out on claims. Other than that the service they offer is great

There are additional matching cars outside your search area.

Sorted by premium dealers first

Partial matches are generated by applying your search criteria to a larger search area. Our goal is to help you discover additional cars that match your search preferences.

As a benefit to some of our dealer customers, we display their listings first.
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT View all 15 photos

New

2026 GMC Sierra 2500 SLT

$71,183
Est. $1,321/mo*
O'Fallon Buick GMC
O'Fallon, MO (34 mi.)
Call Check availability Check availability

Vehicle information

Ext. color: Summit White
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: Automatic
Engine: 6.6L V-8 gasoline direct injection, variable valve control, regu
Stock #: G26185
VIN: 1GT4UNE79TF117151

Features

Convenience: Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment: Android Auto®, Apple CarPlay®, Bluetooth®, Premium Sound System, USB Port, WiFi Hotspot
Exterior: Alloy Wheels, Tow Hitch, Tow Hooks
Safety: Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating: Leather Seats, Memory Seat
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT View all 15 photos

New

2026 GMC Sierra 2500 SLT

$72,192
Est. $1,340/mo*
O'Fallon Buick GMC
O'Fallon, MO (34 mi.)
Call Check availability Check availability

Vehicle information

Ext. color: Onyx Black
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: Automatic
Engine: 6.6L V-8 gasoline direct injection, variable valve control, regu
Stock #: G26288
VIN: 1GT4UNE78TF137763

Features

Convenience: Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment: Android Auto®, Apple CarPlay®, Bluetooth®, Premium Sound System, USB Port, WiFi Hotspot
Exterior: Alloy Wheels, Tow Hitch, Tow Hooks
Safety: Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating: Leather Seats, Memory Seat
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT View all 15 photos

New

2026 GMC Sierra 2500 SLT

$72,337
Est. $1,342/mo*
O'Fallon Buick GMC
O'Fallon, MO (34 mi.)
Call Check availability Check availability

Vehicle information

Ext. color: Volcanic Red Tintcoat
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: Automatic
Engine: 6.6L V-8 gasoline direct injection, variable valve control, regu
Stock #: G26293
VIN: 1GT4UNE73TF137895

Features

Convenience: Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment: Android Auto®, Apple CarPlay®, Bluetooth®, Premium Sound System, USB Port, WiFi Hotspot
Exterior: Alloy Wheels, Tow Hitch, Tow Hooks
Safety: Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating: Leather Seats, Memory Seat
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT View all 15 photos

New

2026 GMC Sierra 2500 SLT

$71,712
Est. $1,331/mo*
O'Fallon Buick GMC
O'Fallon, MO (34 mi.)
Call Check availability Check availability

Vehicle information

Ext. color: Summit White
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: Automatic
Engine: 6.6L V-8 gasoline direct injection, variable valve control, regu
Stock #: G26290
VIN: 1GT4UNE73TF138755

Features

Convenience: Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment: Android Auto®, Apple CarPlay®, Bluetooth®, Premium Sound System, USB Port, WiFi Hotspot
Exterior: Alloy Wheels, Tow Hitch, Tow Hooks
Safety: Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating: Leather Seats, Memory Seat
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT
2026 GMC Sierra 2500 SLT View all 15 photos

New

2026 GMC Sierra 2500 SLT

$71,663
Est. $1,330/mo*
O'Fallon Buick GMC
O'Fallon, MO (34 mi.)
Call Check availability Check availability

Vehicle information

Ext. color: Sterling Metallic
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: Automatic
Engine: 6.6L V-8 gasoline direct injection, variable valve control, regu
Stock #: G26292
VIN: 1GT4UNE70TF138874

Features

Convenience: Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment: Android Auto®, Apple CarPlay®, Bluetooth®, Premium Sound System, USB Port, WiFi Hotspot
Exterior: Alloy Wheels, Tow Hitch, Tow Hooks
Safety: Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating: Leather Seats, Memory Seat

*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.

**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.

43 matches Clear
Reset
43 matches
Be the first to know!

Save your search and get notified when new inventory arrives.
Basics
GMC models
Sierra 2500 trims
Price & payment Full Price Monthly
‡Monthly budget search results are estimated based on a 72-month loan term with $0 down payment, $0 trade-in value, 0.0% sales tax and 7.0% APR. Inputs can be personalized using the calculator.
Financing
Deal rating
Vehicle history
Awards
Style
Body style
Vehicle size
Cab type
Exterior color
Interior color
Performance
Transmission
Drivetrain
Cylinders
Fuel type
EV range
EV charge time
Features
Convenience
Entertainment
Exterior
Safety
Seating
Door count
Seller info
Seller type
Keyword
Update
Show only

GMC Sierra 2500 trims
[{"applied_filter_criteria":"{\"cpo_indicator\":true,\"make_model_trim\":[{\"trim\":\"slt\",\"make\":\"gmc\",\"model\":\"sierra_2500\"}],\"max_year\":\"2026\",\"min_year\":\"2026\",\"search_range\":\"30\",\"shippable\":true,\"sort_field\":\"searchRank1\",\"sort_order\":\"desc\",\"stock_type\":\"all\"}","search_type":"general-inventory-search","sponsored_type_eligible":["premier","inventory_ad"],"vehicle_array":[{"customer_id":"152223","badges":["price_drop_in_cents"],"certified_preowned":false,"fuel_type":"Gasoline","model":"Sierra 2500","nvi_program":false,"dealer_name":"Laura Buick GMC","sponsored":false,"cpo_indicator":false,"trim":"SLT","sponsored_type":"standard","photo_count":22,"relevancy_score":null,"bodystyle":"Truck","drivetrain":"Four-wheel Drive","interior_color":"Jet Black","exterior_color":"Onyx Black","cpo_package":null,"vertical_position":1,"price":"70393","listing_id":"d829f071-7225-4a8b-a410-9be70d000f3f","stock_type":"New","canonical_mmty":"GMC:Sierra 2500:SLT:2026","canonical_mmt":"GMC:Sierra 2500:SLT","stock_sub":"","cat":"truck_fullsize","vin":"1GT4UNE74TF143057","seller_type":"dealership","year":"2026","make":"GMC","msrp":"75710","dealer_zip":"62234","mileage":"7"},{"customer_id":"19550","badges":["price_drop_in_cents"],"certified_preowned":false,"fuel_type":"Gasoline","model":"Sierra 2500","nvi_program":false,"dealer_name":"Lou Fusz Buick GMC","sponsored":false,"cpo_indicator":false,"trim":"SLT","sponsored_type":"standard","photo_count":1,"relevancy_score":null,"bodystyle":"Truck","drivetrain":"Four-wheel Drive","interior_color":"Jet Black","exterior_color":"Onyx Black","cpo_package":null,"vertical_position":2,"price":"69005","listing_id":"854ae897-94db-433d-a3f0-02daa13907e4","stock_type":"New","canonical_mmty":"GMC:Sierra 2500:SLT:2026","canonical_mmt":"GMC:Sierra 2500:SLT","stock_sub":"","cat":"truck_fullsize","vin":"1GT4UNE74TF172929","seller_type":"dealership","year":"2026","make":"GMC","msrp":"73550","dealer_zip":"63132","mileage":"3"},{"customer_id":"178626","badges":["price_drop_in_cents"],"certified_preowned":false,"fuel_type":"Diesel","model":"Sierra 2500","nvi_program":false,"dealer_name":"Steve Schmitt, Inc.","sponsored":false,"cpo_indicator":false,"trim":"SLT","sponsored_type":"standard","photo_count":32,"relevancy_score":null,"bodystyle":"Truck","drivetrain":"Four-wheel Drive","interior_color":"Jet Black","exterior_color":"Onyx Black","cpo_package":null,"vertical_position":3,"price":"78304","listing_id":"5a841d5a-8457-4eee-8de6-c89276c1181c","stock_type":"New","canonical_mmty":"GMC:Sierra 2500:SLT:2026","canonical_mmt":"GMC:Sierra 2500:SLT","stock_sub":"","cat":"truck_fullsize","vin":"1GT4UNEY4TF113002","seller_type":"dealership","year":"2026","make":"GMC","msrp":"84735","dealer_zip":"62249","mileage":"10"},{"customer_id":"6058391","badges":[],"certified_preowned":false,"fuel_type":"Gasoline","model":"Sierra 2500","nvi_program":false,"dealer_name":"O'Fallon Buick GMC","sponsored":false,"cpo_indicator":false,"trim":"SLT","sponsored_type":"search_expansion|radius_non_paid","photo_count":15,"relevancy_score":null,"bodystyle":"Truck","drivetrain":"Four-wheel Drive","interior_color":"Jet Black","exterior_color":"Summit White","cpo_package":null,"vertical_position":4,"price":"71183","listing_id":"d3fa82c7-1724-40e1-bdcc-48b9d8d2b031","stock_type":"New","canonical_mmty":"GMC:Sierra 2500:SLT:2026","canonical_mmt":"GMC:Sierra 2500:SLT","stock_sub":"","cat":"truck_fullsize","vin":"1GT4UNE79TF117151","seller_type":"dealership","year":"2026","make":"GMC","msrp":"71183","dealer_zip":"63368","mileage":"0"},{"customer_id":"6058391","badges":[],"certified_preowned":false,"fuel_type":"Gasoline","model":"Sierra 2500","nvi_program":false,"dealer_name":"O'Fallon Buick GMC","sponsored":false,"cpo_indicator":false,"trim":"SLT","sponsored_type":"search_expansion|radius_non_paid","photo_count":15,"relevancy_score":null,"bodystyle":"Truck","drivetrain":"Four-wheel Drive","interior_color":"Jet Black","exterior_color":"Onyx Black","cpo_package":null,"vertical_position":5,"price":"72192","listing_id":"478e39ce-e452-4760-bf8e-2d6818bbd646","stock_type":"New","canonical_mmty":"GMC:Sierra 2500:SLT:2026","canonical_mmt":"GMC:Sierra 2500:SLT","stock_sub":"","cat":"truck_fullsize","vin":"1GT4UNE78TF137763","seller_type":"dealership","year":"2026","make":"GMC","msrp":"72192","dealer_zip":"63368","mileage":"0"},{"customer_id":"6058391","badges":[],"certified_preowned":false,"fuel_type":"Gasoline","model":"Sierra 2500","nvi_program":false,"dealer_name":"O'Fallon Buick GMC","sponsored":false,"cpo_indicator":false,"trim":"SLT","sponsored_type":"search_expansion|radius_non_paid","photo_count":15,"relevancy_score":null,"bodystyle":"Truck","drivetrain":"Four-wheel Drive","interior_color":"Jet Black","exterior_color":"Volcanic Red Tintcoat","cpo_package":null,"vertical_position":6,"price":"72337","listing_id":"c29f5fee-c70d-47d3-81df-be985cac5541","stock_type":"New","canonical_mmty":"GMC:Sierra 2500:SLT:2026","canonical_mmt":"GMC:Sierra 2500:SLT","stock_sub":"","cat":"truck_fullsize","vin":"1GT4UNE73TF137895","seller_type":"dealership","year":"2026","make":"GMC","msrp":"72337","dealer_zip":"63368","mileage":"0"},{"customer_id":"6058391","badges":[],"certified_preowned":false,"fuel_type":"Gasoline","model":"Sierra 2500","nvi_program":false,"dealer_name":"O'Fallon Buick GMC","sponsored":false,"cpo_indicator":false,"trim":"SLT","sponsored_type":"search_expansion|radius_non_paid","photo_count":15,"relevancy_score":null,"bodystyle":"Truck","drivetrain":"Four-wheel Drive","interior_color":"Jet Black","exterior_color":"Summit White","cpo_package":null,"vertical_position":7,"price":"71712","listing_id":"5c416221-9e8a-423f-af92-dbd9d596a4b4","stock_type":"New","canonical_mmty":"GMC:Sierra 2500:SLT:2026","canonical_mmt":"GMC:Sierra 2500:SLT","stock_sub":"","cat":"truck_fullsize","vin":"1GT4UNE73TF138755","seller_type":"dealership","year":"2026","make":"GMC","msrp":"71712","dealer_zip":"63368","mileage":"0"},{"customer_id":"6058391","badges":[],"certified_preowned":false,"fuel_type":"Gasoline","model":"Sierra 2500","nvi_program":false,"dealer_name":"O'Fallon Buick GMC","sponsored":false,"cpo_indicator":false,"trim":"SLT","sponsored_type":"search_expansion|radius_non_paid","photo_count":15,"relevancy_score":null,"bodystyle":"Truck","drivetrain":"Four-wheel Drive","interior_color":"Jet Black","exterior_color":"Sterling Metallic","cpo_package":null,"vertical_position":8,"price":"71663","listing_id":"ee99d78a-78a0-45a2-85bc-3eb54848f610","stock_type":"New","canonical_mmty":"GMC:Sierra 2500:SLT:2026","canonical_mmt":"GMC:Sierra 2500:SLT","stock_sub":"","cat":"truck_fullsize","vin":"1GT4UNE70TF138874","seller_type":"dealership","year":"2026","make":"GMC","msrp":"71663","dealer_zip":"63368","mileage":"0"}]}]