2026 GMC Sierra 3500HD

Power Locks - Privacy Glass - Navigation System - Power Adjustable Seat - Traction ControlThe 2026 GMC Sierra 3500HD AT4 Preferred Package with Technology Package is a brand new heavy duty diesel pickup built for serious work and refined everyday driving. This crew cab 4 door truck blends off road ready AT4 toughness with premium comfort, making it ideal for towing, hauling and long highway trips across Ontario and beyond.Under the hood, a 6.6L turbocharged diesel V8 delivers strong, confident power with the kind of low end torque diesel drivers appreciate when pulling heavy trailers or climbing steep grades. The automatic transmission works smoothly to keep the engine in its sweet spot, while the 4x4 system provides secure traction on gravel roads, muddy job sites and wintery streets. Running on diesel fuel, the Sierra 3500HD is built for durability and long distance capability.Inside, the AT4 cabin feels upscale and purposeful. Leather interior and supportive bucket seats create a comfortable space for long days behind the wheel. Power seats with memory settings help different drivers find their ideal position quickly. Dual zone style climate control and air conditioning keep temperatures comfortable year round, while a heated steering wheel adds welcome warmth on cold mornings. The premium audio system, satellite radio and AM/FM stereo are managed through an advanced infotainment interface with navigation, and steering wheel audio controls keep everything at your fingertips.Everyday convenience is thoughtfully integrated. Keyless entry, power windows, power locks and power steering make daily use effortless. Auto dimming mirrors help reduce glare at night, while rain sensor wipers automatically adjust to changing conditions. Privacy glass and a rear defroster enhance comfort and visibility, and the factory bed liner protects the cargo box when loading tools, equipment or recreational gear. Cruise control and adaptive cruise control help reduce fatigue on long highway drives.Safety and driver confidence are central to this Sierra 3500HD. Multiple airbags, including driver and passenger units, work with stability control and traction control to help keep you secure. Lane departure warning supports attentive driving on busy highways. Reverse park assist and parking sensors make manoeuvring this heavy duty truck in tighter spaces more manageable. Daytime running lights and fog lights improve visibility in poor weather, while the security system adds peace of mind when parked.Overall, this white 2026 GMC Sierra 3500HD AT4 Preferred Package with Technology Package delivers a compelling mix of heavy duty capability, advanced technology and premium comfort. It is a powerful, refined and highly equipped diesel 4x4 that feels equally at home on the job site, on the highway or heading to the cottage.Specifications6.6L turbocharged diesel V8 with automatic transmission for confident heavy duty performance4x4 drivetrain and AT4 capability for secure traction in challenging conditionsPremium leather interior with heated steering wheel, power and memory seats for all day comfortAdvanced technology with navigation, premium audio, satellite radio and steering wheel audio controlsComprehensive safety with adaptive cruise control, lane departure warning and reverse park assist