2026 GMC Sierra 1500 SLT

Safety and driver assistance is where this build goes furthest. The Sierra Safety Plus Package adds HD Surround Vision, Ultrasonic Front and Rear Park Assist, Rear Cross Traffic Braking, Rear Pedestrian Detection, Trailer Side Blind Zone Alert, Trailer Camera Provisions, and a Safety Alert Seat — one of the most complete safety suites available on a half-ton truck.

Adaptive Cruise Control, forward collision mitigation, and rain-sensing front wipers are also aboard. The ProGrade Trailering System contributes Hitch View and the In-Vehicle Trailering App, putting the full trailering picture on the 13.4-inch Google Built-In infotainment screen.

Off-road and trailering hardware back up the technology. The X31 Off-Road Package brings an off-road suspension, skid plates, Hill Descent Control, a two-speed electronic Autotrac transfer case, a heavy-duty air filter, and a dual exhaust system.

The X31 Off-Road and Protection Package adds 20-inch polished aluminum wheels with 275/60R20 all-terrain tires, a spray-on bedliner with GMC logo, and all-weather floor liners for the first and second rows. The Preferred Equipment Group 4SA includes an integrated trailer brake controller, auxiliary external transmission oil cooler, and an auto-locking rear differential — all the hardware a working trailer rig demands.

Inside , the SLT Convenience Package raises the comfort ceiling: ventilated driver and front passenger seats, a Bose Premium 7-Speaker Sound System, wireless charging, a floor-mounted center console, and a power rake-and-telescoping steering column. The SLT Preferred Package adds heated second-row outboard seats, a power sliding rear window with rear defogger, and Universal Home Remote.

Connectivity runs through Apple CarPlay, Android Auto with wireless mirroring, a SiriusXM with 360L trial subscription, a mobile Wi-Fi hotspot, and USB charge/data ports inside the center console plus two rear USB-C charge ports. Chrome wheel-to-wheel assist steps and a remote vehicle starter system are also included.

We are located at N8167 Kellom Rd. in Beaver Dam — about 45 minutes from Madison, an hour from Milwaukee, and 35 minutes from Fond du Lac, making us a straightforward drive for shoppers from Hartford, West Bend, and Portage as well. Napleton Chevrolet Buick GMC has been family-owned for over 80 years, and our process is built around giving you time with the facts, not pressure.

If this build matches what you have been configuring, reach out and we will walk you through the full arrival timeline and options.