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1620 East Homer Adams Pkwy Alton, IL 62002

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2023 GMC Sierra 3500 OVERVIEW Overview Icon

2023 GMC Sierra 3500 in Alton

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  • 6-speed, heavy-duty, electronically controlled automatic transmission
  • StabiliTrak, electronic stability control system with traction control
  • Bluetooth®
  • GMC Infotainment System with color touchscreen
2023 GMC Sierra 3500 Main Img

2023 GMC Sierra 3500 MODELS

  • Sierra 3500 PRO

    Sierra 3500 PRO

  • Sierra 3500 SLE

    Sierra 3500 SLE

  • Sierra 3500 SLT

    Sierra 3500 SLT

  • Sierra 3500 AT4

    Sierra 3500 AT4

  • Sierra 3500 Denali

    Sierra 3500 Denali

2023 GMC Sierra 3500 CONFIGURATIONS

* Model and trim configurations may vary
  • Sierra 3500 Regular Cab Long
    Sierra 3500 Regular Cab Long
  • Sierra 3500 Double Cab Long
    Sierra 3500 Double Cab Long
  • Sierra 3500 Crew Cab Standard
    Sierra 3500 Crew Cab Standard
  • Sierra 3500 Crew Cab Long
    Sierra 3500 Crew Cab Long

GMC Sierra 3500 Dealer in Alton

2023 GMC Sierra 3500 PERFORMANCE Performance Icon

2023 GMC Sierra 3500 performance

RESPONSIVE SUSPENSIONS

  • AT4 and Denali’s independent front suspensions provide excellent wheel alignment, ride comfort and turnability with reduced weight
  • Live-axle suspension includes two-stage, semi-elliptic multileaf rear springs to balance payload management and ride quality
2023 GMC Sierra 3500 performance

STAY COOL UNDER PRESSURE

To help maintain optimal operating temperatures of the available Duramax® 6.6L Turbo-Diesel V8 engine, a massive 28" variable-speed cooling fan was added. Dense, cool air from the Dual Path Air Induction System is drawn through both the hood scoop and the large grille to maximize horsepower and help optimize trailering performance. The factory-installed Diesel After-Run feature is designed to help cool down the engine following heavy usage.

2023 GMC Sierra 3500 performance

AVAILABLE TRACTION SELECT SYSTEM WITH TOW/HAUL MODE AND OFF-ROAD MODE

  • Allows you to quickly switch between multiple traction configurations, including Off-Road mode and Tow/Haul mode, to optimize powertrain calibrations, traction control settings and stability control system calibrations for a variety of terrain and driving conditions
  • The system will retain the Tow/Haul setting configurations for up to 4 hours after the vehicle is turned off, eliminating the need to reengage the system when returning from a brief stop on a long journey

2023 GMC Sierra 3500 APPEARANCE Appearance Icon

2023 GMC Sierra 3500 Appearance Main Img
2023 GMC Sierra 3500 appearance

FULL-WIDTH STEP

After removing the conventional hitch, the inner gate folds into a large step for easy entry and exit from the bed (step holds up to 375 lbs).

2023 GMC Sierra 3500 appearance

INNER GATE LOAD STOP

The inner gate also includes a load stop to help prevent second-tier items from sliding out of the bed. The inner gate can be disabled to prevent it from being opened when a hitch or other equipment is installed.

2023 GMC Sierra 3500 appearance

EASY ACCESS

The inner gate folds down for easy access when loading and unloading the bed.

2023 GMC Sierra 3500 COMFORT Comfort Icon

2023 GMC Sierra 3500 comfort

RIDE CONFIDENTLY

  • The elevated driver seat lets you survey the road with confidence and offers comfortable cushions for enhanced support during long hauls
  • Spacious interior features best-in-class Crew Cab front head room (43.0") and leg room (44.5")
2023 GMC Sierra 3500 comfort

ROOM FOR ALL THE GEAR YOU NEED

Sierra HD Crew Cab models have ample storage options to pack the stuff you need, with features like rear-folding split bench with under-seat storage.

2023 GMC Sierra 3500 comfort

AVAILABLE MULTIPRO AUDIO SYSTEM BY KICKER®

When you want to bring your music outdoors — without your truck running — the available accessory MultiPro Audio System by Kicker is designed to integrate into the MultiPro Tailgate.

2023 GMC Sierra 3500 comfort

APPLE CARPLAY®

With Apple CarPlay compatibility you have wired or wireless access to iPhone® features such as hands-free phone calls and messaging, Apple Music™, Apple Maps and more. Standard on all HD models.

2023 GMC Sierra 3500 SAFETY & WARRANTY Safety Icon

PRO GRADE PROTECTION

Standard on every new GMC - GMC Pro Grade Protection has you truly protected with features and services including:

  • 3-year / 36,000-mile Bumper-to-Bumper Limited Warranty
  • 5-year / 60,000-mile Powertrain Limited Warranty
  • 5-year / 60,000-mile Roadside Assistance & Courtesy Transportation
  • 3-year / 36,000-mile Corrosion Protection
  • 6-year / 100,000-mile Rust-Through Protection
  • First maintenance visit
2023 GMC Sierra 3500 Safety Main Img
2023 GMC Sierra 3500 safety

INTELLIBEAM®

When driving conditions are dark, available IntelliBeam auto high beams can automatically turn the vehicle’s high-beam headlamps on and off according to surrounding traffic conditions. Standard on Denali. Available on AT4, SLT and SLE.

2023 GMC Sierra 3500 safety

TEEN DRIVER

Standard Teen Driver helps encourage better safe driving habits for new drivers. It automatically activates certain available safety systems and allows parents to set limits on other features. There is even an in-vehicle report card that parents can access to help with coaching their teen driver.

2023 GMC Sierra 3500 safety

REAR CAMERA MIRROR

The available Rear Camera Mirror provides a wide and less obstructed view behind the vehicle while you’re driving. You can switch between the camera view and a traditional rearview mirror.

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