Disclaimer:
New vehicle pricing includes all offers and incentives. Title, tax, registration, document, and other required government fees, and, where applicable, set up and predelivery inspection fees, are not included in vehicle prices and estimated payment amounts shown and must be paid by the purchaser. While great effort is made to ensure the accuracy of the information on this site, errors do occur so please verify information with a customer service rep. This is easily done by calling us at (208) 388-4400 or by visiting us at the dealership.
**With approved credit. Terms may vary. Monthly payments are only estimates derived from the vehicle price with a 72 month term, 5.9% interest and 20% downpayment.
At Dennis Dillon we are so confident in our “Guaranteed Best Pricing” we will beat any price by $500 based on the following guidelines:
– Vehicles must have the same MSRP.©2026. Dennis Dillon FIAT. All Rights Reserved.
While great effort is made to ensure the accuracy of the information on this site, errors can occur. Please verify all pricing and installed equipment information with a customer service representative. This is easily done by calling us or visiting us at the dealership.
Customer may not qualify for ALL Rebates shown. Some rebates are stackable and others can and cannot be combined. See Dealer For Complete Details.
We improve our products and advertising by using Microsoft Clarity to see how you use our website. By using our site, you agree that we and Microsoft can collect and use this data. Our privacy statement has more details.
Save your favorite vehicles for later viewing on your desktop or mobile devices.
Keep track of all the vehicles you've viewed for a better car shopping experience.
Narrow your search by comparing your favorite vehicles.
Experience the Epitome of Rugged Capability and Refined Comfort with this 2021 GMC Sierra 1500 SLT
This 2021 GMC Sierra 1500 SLT is a true workhorse, blending exceptional off-road prowess with a premium interior designed to elevate your driving experience. Outfitted with a powerful EcoTec3 5.3L V8 engine and a robust 4WD system, this Sierra is ready to tackle any terrain with confidence.
- DENNIS DILLON DEAL
- SLT PREMIUM PLUS PACKAGE: Includes SLT Convenience Package, SLT Preferred Package, Driver Alert Packages I and II, 20'' Polished Aluminum Wheels, Chrome Assist Steps, and Spray-On Bedliner
- TRAILER TIRE PRESSURE MONITOR SENSORS
- X31 OFF-ROAD AND PROTECTION PACKAGE: Includes Off-Road Package, Spray-On Bedliner, and All-Weather Floor Liners
Step inside the Sierra SLT and you'll be greeted by a wealth of premium features, including a Bose 7-speaker sound system, heated and ventilated front seats, and a power sunroof. The SLT's Infotainment System with Navigation keeps you connected and on track, while the Adaptive Cruise Control and Advanced Safety features provide added peace of mind on the road.
Designed to handle the demands of your active lifestyle, this Sierra SLT boasts a spacious and versatile cabin, with ample room for passengers and cargo. The Spray-On Bedliner and 120-Volt Bed-Mounted Power Outlet make it easy to secure and power your gear, while the Trailering Package and Integrated Trailer Brake Controller ensure a smooth and confident towing experience.
Whether you're tackling tough jobs or embarking on thrilling adventures, this 2021 GMC Sierra 1500 SLT is the perfect companion. Its exceptional capability, premium amenities, and refined styling make it a standout in the full-size truck segment. Experience the difference for yourself and schedule a test drive today.
Family owned and operated for over 50 years!