While the 2023 Sierra Heavy Duty offers powertrain advancements across the lineup, the legendary available Duramax Diesel engine and 10-Speed Allison Automatic Transmission continue to offer the in pulling power excellence:
Offers six distinct functions. Designed to help improve loading, unloading and accessing the cargo box.
The Side Bed Step conveniently located just in front of the rear wheel arches complements the large CornerStep rear bumper to help provide easy access when grabbing equipment from the cargo bed.
The Dual Path Air Induction System on the available 6.6L Duramax® Turbo-Diesel V8 engine draws dense, cool air through both the hood scoop and the large front grille to provide cooler induction air temperatures to help optimize horsepower and trailering performance.
Convenient and spacious storage solutions include rear seatback storage, perfect for stowing a smartphone and your other road trip essentials.
Lighted center console storage with available console-mounted safe accessory, and large lower lockable glove box and upper glove box.
It’s OK to leave the cords at home. The available wireless charging pad has excellent charging abilities. Wireless phone projection via Apple CarPlay® and Android AutoTM compatibility.
The BOSE Premium Sound System supplies seven well-placed speakers along with a Richbass woofer to produce powerful, high-quality concert-like sound wherever you go.
Standard on every new GMC - GMC Pro Grade Protection has you truly protected with features and services including:
This feature can alert you if you might be unintentionally drifting out of detected lane lines so you can quickly take action. It will not alert you if you’re using your turn signal or it detects you may be intentionally leaving your lane. Standard on Denali. Available AT4, SLT and SLE.
Front and Rear Park Assist can provide alerts to nearby detected objects in front of or behind your truck to help you park and avoid collisions at low speeds. Standard on Denali. Available on AT4, SLT, SLE and Sierra HD Pro.
The available Safety Alert Seat uses left, right or both-side driver seat vibration pulses to help you identify the direction of potential crashes so you can quickly take action. You can also switch to beeping crash avoidance alerts. Standard on Denali. Available on AT4 and SLT.