Air Suspension - GMC HUMMER EV 2022 Owner's Manual

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204
Driving and Operating
2. Press the front/rear axle locking switch.
The front and rear axles will both unlock.
The locking front axle will be disengaged
automatically when the vehicle speed
exceeds 24 km/h (15 mph) or the Terrain
Mode is exited.
ABS will be automatically enabled and the
ABS warning light will turn off when the
locking front axle is disengaged.
After pressing the switch to unlock the axle,
it may remain locked due to torque in the
driveline. To quickly unlock the axle, turn
the steering wheel to the right and to the
left while traveling at a low speed.

Air Suspension

The Air Suspension feature provides full time
load leveling capability along with the
benefit of adjusting ride height for increased
convenience and capability.
Warning
To help avoid personal injury or death,
make sure the area underneath the
vehicle and inside the wheel wells is clear
when lowering the vehicle.
Warning
To help avoid personal injury or death,
always select the lowest ride height for
the current driving conditions. Higher ride
heights raise the vehicle's center of
gravity, increasing the chance of a
rollover during extreme maneuvers.
Warning
Heavy loads on the roof rack will make
the vehicle's center of gravity higher,
increasing the possibility of a rollover. To
avoid losing control of the vehicle, always
select the normal height setting and
avoid high speeds, sudden starts, sharp
turns, sudden braking, or abrupt
maneuvers when carrying cargo on the
roof rack.
Changing Ride Height
Press either Up or Down Ride Height
Button to open the Ride Height menu. Use
these buttons to select the desired ride
height in the menu. After a brief pause, the
menu will timeout and the selection will
finalize. Ride heights that are unavailable for
selection will be greyed out in the menu.
Ride Height Descriptions
Normal Height
Normal Height is the standard vehicle height
used for everyday driving.

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