GMC Sierra EV Technology Features: Super Cruise, CrabWalk, and More
The Sierra EV isn't just an electric powertrain bolted into a familiar truck — it's built around a set of technology features that change how the truck actually drives and works. Here are the standouts.
Super Cruise
Super Cruise is GM's hands-free highway driver-assist system, standard on AT4 and available on other trims. It's genuinely useful on long highway stretches, reducing fatigue on the kind of drives where cruise control alone isn't quite enough.
4-Wheel Steer With CrabWalk
Standard on AT4, 4-Wheel Steer improves low-speed maneuverability and tightens the turning radius significantly, while CrabWalk mode lets all four wheels turn in the same direction for diagonal movement — genuinely useful for tricky off-road lines or tight trailer positioning that would otherwise take several attempts.
Terrain Mode
Exclusive to AT4, Terrain Mode is tuned specifically for off-road maneuverability, torque control, and precise low-speed handling, and integrates with one-pedal drive and automatic braking for more controlled descents and technical terrain.
Energy Transfer Pro
Standard on AT4 and available elsewhere, Energy Transfer Pro turns the truck bed into a genuine power source, with up to 10.2 kW of exportable power for tools, appliances, or camping gear.
Air Ride Adaptive Suspension
Available on Denali, this adjustable air suspension smooths out ride quality and can adjust ride height, which matters both for comfort and for load leveling when the bed is loaded or you're towing.
Frequently Asked Questions
Is Super Cruise available on every Sierra EV trim?
It's standard on AT4 and available on other trims, though availability can vary by configuration — check the specific trim and options when comparing vehicles.
What makes CrabWalk different from regular 4-Wheel Steer?
Standard 4-Wheel Steer improves low-speed maneuverability and turning radius, while CrabWalk specifically lets all four wheels turn in the same direction, enabling diagonal movement that's useful for tight trailer positioning or technical off-road lines.
Can I use Energy Transfer Pro without the AT4 trim?
Yes — while it's standard on AT4, Energy Transfer Pro is available on other trims as well, giving buyers access to the exportable power feature without requiring the off-road-focused AT4 package.
Does Air Ride Adaptive Suspension help with towing?
Yes — beyond comfort, its ability to adjust ride height helps with load leveling when the bed is loaded or you're towing, which is a functional benefit alongside the smoother ride quality.
Shop the Parts Mentioned
- FHD 1080P Dash Camera with G-Sensor — a solid companion for tracking how driver-assist features perform in real conditions.
- ChargePad Pro 15W Wireless Fast Charger — keeps your phone topped off while you're relying on the truck's tech features.
- Hi-Power Dual USB 3.4A Car Charger — fast-charging backup for devices in the cabin.
- Dual Lens 4K Dashcam — additional documentation for Super Cruise and other driver-assist performance.
- SMARTLINER Floor Liners for 2025-2026 Sierra EV — keeps the tech-loaded interior protected.