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HOW TO USE CRABWALK

Difficulty Level: Intermediate  |  Time Required: 2 Minutes  

Travel Diagonally for More Maneuverability While Off-Roading and Parking

CrabWalk is a unique 4-Wheel Steering mode available on the 2022 GMC HUMMER EV Pickup, designed to offer greater maneuverability when you’re off-roading or parking. By using CrabWalk, you can traverse off-road trails or maneuver in parking situations that would normally be extremely challenging in a vehicle this size.

The feature allows the angle of the rear wheels to mimic the angle of the front wheels — allowing your vehicle to move more diagonally.


WHAT IS CRABWALK?

CrabWalk is a 4-Wheel Steering setting that allows the angle of the rear wheels to mimic the angle of the front wheels up to a certain angle (10 degrees). This allows you to move your vehicle diagonally.

You may want to move your vehicle diagonally in certain off-roading situations or to make some parking maneuvers easier. For example, if the rear of your vehicle is facing an obstacle on the left side, and you need to turn your vehicle to the right to get around it, you might risk colliding with the obstacle in Normal Mode.

By moving the vehicle diagonally with CrabWalk, you have the option of moving the vehicle to help avoid collisions with objects within your turning radius.

CrabWalk can only be used at speeds below 20 mph. At speeds above 20 mph, the front and rear wheels will no longer turn at the same angle. If you continue to drive above 25 mph for longer than 10 seconds, CrabWalk will disengage and return the system to Automatic 4-Wheel Steering mode.

 

HOW TO TURN CRABWALK ON

Here’s how to engage CrabWalk:

  1. Your vehicle cannot be going faster than crawl speed (about 1.2 mph).
  2. Your steering wheel must be still and centered for CrabWalk to engage.
  3. Press and hold the 4-Wheel Steering button on the Driver Mode Selector for four seconds.
    • The button is on the left side of the selector knob and looks like an overhead outline of a vehicle.
  4. When CrabWalk is first engaging, you’ll see an animation on your infotainment screen.
  5. When CrabWalk is engaged, your infotainment system will automatically display HD Surround Vision, so you can see more of your vehicle’s surroundings.
  6. Once CrabWalk is active, you can drive at speeds of up to 20 mph. Above 20 mph, the front and rear wheels will no longer turn at the same angle.

2. Your steering wheel must be still and centered for CrabWalk to engage.

3. Press and hold the 4-Wheel Steering button on the Driver Mode Selector for four seconds.

a. The button is on the left side of the selector knob and looks like an overhead outline of a vehicle.

4. When CrabWalk is first engaging, you’ll see an animation on your infotainment screen.

5. When CrabWalk is engaged, your infotainment system will automatically display HD Surround Vision, so you can see more of your vehicle’s surroundings.

6. Once CrabWalk is active, you can drive at speeds of up to 20 mph. Above 20 mph, the front and rear wheels will no longer turn at the same angle.

As with other 4-Wheel Steering modes, there is a limit to how far your rear wheels will turn — an angle of 10 degrees.

 

HOW TO TURN CRABWALK OFF

To turn CrabWalk off, press the 4-Wheel Steering icon on the Driver Mode Selector again. Your steering wheel must be still and centered to turn CrabWalk off, but your vehicle can still be on.

CERTAIN VEHICLE FUNCTIONS ARE DISABLED WHEN USING CRABWALK

  • Trailering features such as Transparent Trailer, Articulation Angle Indicator, Jackknife Alert and certain sets of guidelines are unavailable with CrabWalk activated
  • Lane Keep Assist is not available with CrabWalk activated


RELATED LINKS AND RESOURCES


Q&As

Why can’t I turn CrabWalk on?

CrabWalk can only be enabled when your vehicle is at crawl speed or stopped (up to 1.2 mph). Your steering wheel must be centered before you can turn the feature on as well. The feature will also temporarily disable itself if you go above 20 mph and turn back on when you go below 20 mph again. If you go faster than 25 mph for more than 10 seconds, CrabWalk will disengage.

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To find out if your vehicle has this feature, contact your dealer or refer to your vehicle’s equipment list. Please check your Owner’s Manual for more information about features.

  • Limited to low speeds. Standard on 22MY GMC HUMMER EV Pickup Edition 1 (initial availability Fall 2021). Read the vehicle Owner’s Manual for important feature limitations and information.

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  • Requires Sierra 3500 HD Regular Cab Long Bed 2WD DRW with available Duramax 6.6L Turbo-Diesel V8, Max Trailering Package and gooseneck hitch. Before you buy a vehicle or use it for trailering, carefully review the Trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Requires 4WD Double Cab with available 6.2L V8 and Max Trailering Package. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • SLE models only.

  • Requires properly equipped 3500 Regular Cab DRW Long Box 2WD model with available 6.6L Duramax Turbo Diesel engine and gooseneck hitch. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • 7,550-lb rating requires a properly equipped 4WD Canyon Denali model with available Duramax 2.8L I4 Diesel engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options oraccessories may reduce the amount you can tow.

  • Requires 2WD Denali Short Box model with 5.3L V-8 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • The 30,990 lbs. rating requires properly equipped Sierra 3500HD Crew Cab Long Box 4WD DRW with available Duramax 6.6L Turbo-Diesel V8 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • 7,550-lb rating requires a properly equipped Canyon AT4 Crew Cab short bed model with cloth seating, available Duramax 2.8L I4 Diesel engine and Trailering Package. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Sierra’s 9,200-lb rating requires a properly equipped AT4 Crew Cab Short Bed 4WD model with 5.3L V8 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Requires properly equipped 3500 Crew Cab SRW Standard Box 4WD model with 6.6L gas V8 engine. These maximum payload ratings are intended for comparison purposes only. Before you buy a vehicle or use it to haul people or cargo, carefully review the vehicle loading section of the Owner’s Manual and check the carrying capacity of your specific vehicle on the label on the inside of the driver’s door jamb.

  • Savana Passenger's 9,600-lb rating requires 2500 or 3500 Regular Wheelbase model, trailering equipment package and 6.6L V8 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Savana Cargo’s 10,000-lb rating requires 2500 or 3500 Regular Wheelbase, trailering equipment package and 6.6L V8 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Savana Cutaway’s 8,920-lb rating requires a 4500 Series 159" Wheelbase model with available 6.6L V8 engine. These maximum payload ratings are intended for comparison purposes only. Before you buy a vehicle or use it to haul people or cargo, carefully review the vehicle loading section of the Owner’s Manual and check the carrying capacity of your specific vehicle on the label on the inside of the driver’s door jamb.

  • Gross Combination Weight Rating (GCWR). When properly equipped; includes weight of vehicle and trailer combination, including the weight of driver, passengers, fuel, optional equipment and cargo in the vehicle and trailer.

  • Maximum Gross Vehicle Weight Rating (GVWR). When properly equipped; includes weight of vehicle, passengers, cargo and equipment.

  • Canyon’s 7000-lb rating requires available trailering package and 3.6L V-6 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Sierra's 12,500-lb rating requires Sierra Double Cab or Crew Cab Short box 2wd with 6.2L EcoTec3 V8 engine and NHT Max Trailering Package. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Trailer weight ratings are calculated assuming properly equipped vehicle, plus driver and one passenger. The weight of other optional equipment, passengers and cargo will reduce the trailer weight your vehicle can tow. See dealer for details.

  • Trailer weight ratings are calculated assuming properly equipped vehicle, plus driver and one passenger. The weight of other optional equipment, passengers and cargo will reduce the trailer weight your vehicle can tow. See dealer for details.

  • Savana Passenger's 10,000-lb rating requires 2500 Wheel Base with 6.0L V8 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Savana Cargo's 10,000-lb rating requires 6.0L V8 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • These maximum payload ratings are intended for comparison purposes only. Before you buy a vehicle or use it to haul people or cargo, carefully review the vehicle loading section of the Owner’s Manual and check the carrying capacity of your specific vehicle on the label on the inside of the driver’s door jamb.

  • Gross Combination Weight Rating (GCWR). When properly equipped, includes weight of vehicle, passengers, cargo and equipment.

  • Canyon’s 7700-lb rating requires 2WD Crew Cab model with available Duramax 2.8L I-4 Diesel engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Starting at price for base Sierra HD. The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. See your GMC dealer for details. Click here to see all GMC destination freight charges.

  • Requires properly equipped 3500 Regular Cab DRW Long Box 2WD model with available 6.6L Duramax Turbo Diesel engine and gooseneck hitch. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. See your GMC dealer for details. Click here to see all GMC destination freight charges. Bed/Roof-Mounted Bicycle Carriers shown. Requires crossbars or Thule Rack Solution. Non-GM warranty. Warranty by Thule®. See dealer for more information.

  • Requires available 3.6L V6 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • These maximum payload ratings are intended for comparison purposes only. Before you buy a vehicle or use it to haul people or cargo, carefully review the vehicle loading section of the Owner’s Manual and check the carrying capacity of your specific vehicle on the label on the inside of the driver’s door jamb.

  • Requires 2WD Denali Short Box model with 5.3L V-8 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Requires properly equipped 3500 Crew Cab DRW Long Box 4WD model with available 6.6L Duramax Turbo Diesel engine and fifth wheel or gooseneck hitch. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Requires properly equipped 3500 Crew Cab DRW Long Box 4WD model with available 6.6L Duramax Turbo Diesel engine and fifth wheel or gooseneck hitch. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Savana Cutaway’s 9,006-lb rating requires a 4500 Series 159" Wheelbase model with available 6.0L V8 engine. These maximum payload ratings are intended for comparison purposes only. Before you buy a vehicle or use it to haul people or cargo, carefully review the vehicle loading section of the Owner’s Manual and check the carrying capacity of your specific vehicle on the label on the inside of the driver’s door jamb.

  • Savana Cargo’s 10,000-lb rating requires  the available 6.0L V8 engine and trailering equipment package.  Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual.  The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Savana Passenger's 9,600-lb rating requires a 2500 or 3500 Regular wheelbase model with available 6.0L V8 engine and trailering equipment package. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

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