2026 GMC Sierra 1500 AT4
$15,934 more than this car
- 359 mi
- 4WD
- Automatic
- Gasoline
- Truck
Lighthouse Buick GMC · Morton, IL · 52 mi away
8,748 miles · truck

This 2026 GMC Sierra 1500 AT4 is a diesel-powered crew cab built for capability and comfort. With its 3.0L I6 diesel engine delivering EPA-estimated 22 city / 26 highway MPG, Actual mileage may vary, and equipped with a smooth 10-speed automatic transmission in 4WD, this truck handles both daily driving and demanding terrain. Just 8,748 miles on the odometer reflects careful ownership of this premium work and lifestyle vehicle. The black exterior with jet black and kalahari leather interior creates a refined, professional appearance. - Power sunroof with power windows and express controls - Premium Bose 7-speaker sound system with Apple CarPlay and Android Auto - Heated and ventilated leather front seats with memory adjustments - Adaptive cruise control with automatic emergency braking and lane keep assist - Integrated trailer brake controller with hitch guidance and surround vision cameras - Heated steering wheel and power steering column with memory settings - 15-inch color head-up display and navigation system - LED headlights with automatic high beam control and fog lights - Keyless entry and push button start with remote vehicle starter This Sierra is Summit Certified, ensuring it has been thoroughly inspected and conditioned to exacting standards. You'll drive with confidence backed by a 6-month/6,000-mile comprehensive Summit Warranty. The AT4 trim combines rugged capability with upscale refinement, and this particular truck showcases both. Come experience the commanding presence, diesel efficiency, and premium feature set that makes this Sierra stand out. We invite you to schedule a test drive and see why discerning truck buyers choose this AT4.
Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.
Among the lowest-priced · 75% of 4 similar listings ask more than this car.
How we calculate market value: comparable cars for sale now plus their last listed prices.
Same 2026 Sierra 1500 AT4 · used · any miles · within 100 miles of Peru, Illinois. All 4 comparable cars for sale, nearest first.
$15,934 more than this car
Lighthouse Buick GMC · Morton, IL · 52 mi away
$18,224 more than this car
Lighthouse Buick GMC · Morton, IL · 52 mi away
$18,424 more than this car
Lighthouse Buick GMC · Morton, IL · 52 mi away
$1,409 less than this car
Napleton's Schaumburg Buick GMC · Schaumburg, IL · 74 mi away
2026 GMC Sierra 1500 AT4359 miles · Lighthouse Buick GMC · Morton, IL · 52 mi away$75,255$15,934 more than this car
2026 GMC Sierra 1500 AT41,553 miles · Lighthouse Buick GMC · Morton, IL · 52 mi away$77,545$18,224 more than this car
2026 GMC Sierra 1500 AT4902 miles · Lighthouse Buick GMC · Morton, IL · 52 mi away$77,745$18,424 more than this car
2026 GMC Sierra 1500 AT48,202 miles · Napleton's Schaumburg Buick GMC · Schaumburg, IL · 74 mi away$57,912$1,409 less than this carAll years and trims. Nearest first.
Jeff Perry Buick GMC · Peru, IL · 0 mi away
Jeff Perry Buick GMC · Peru, IL · 0 mi away
Jeff Perry Buick GMC · Peru, IL · 0 mi away
Jeff Perry Buick GMC · Peru, IL · 0 mi away
Jeff Perry Buick GMC · Peru, IL · 0 mi away
Jeff Perry Buick GMC · Peru, IL · 0 mi away
Jeff Perry Buick GMC · Peru, IL · 0 mi away
Jeff Perry Buick GMC · Peru, IL · 0 mi away
2026 GMC Sierra 2500 HD Denali Ultimate5 miles · Jeff Perry Buick GMC · Peru, IL · 0 mi away$88,744
2026 GMC Sierra 1500 Denali6 miles · Jeff Perry Buick GMC · Peru, IL · 0 mi away$63,685
2026 GMC Sierra 1500 AT46 miles · Jeff Perry Buick GMC · Peru, IL · 0 mi away$59,281
2026 GMC Sierra 1500 AT46 miles · Jeff Perry Buick GMC · Peru, IL · 0 mi away$59,281
2026 GMC Sierra 1500 SLT6 miles · Jeff Perry Buick GMC · Peru, IL · 0 mi away$56,712
2026 GMC Sierra 1500 Elevation6 miles · Jeff Perry Buick GMC · Peru, IL · 0 mi away$45,669
2026 GMC Sierra 1500 SLT6 miles · Jeff Perry Buick GMC · Peru, IL · 0 mi away$56,262
2026 GMC Sierra 1500 SLT6 miles · Jeff Perry Buick GMC · Peru, IL · 0 mi away$56,712