Recreational Vehicle Towing - GMC HUMMER EV 2022 Owner's Manual

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If the vehicle speed exceeds 32 km (20 mph)
after these steps, Service mode will
automatically exit and the procedure will
need to be repeated.
The vehicle must be in N (Neutral) and the
electric parking brake must be released
when loading the vehicle onto a flatbed tow
truck.
If the vehicle is equipped with car wash
mode and has 12-volt battery power, refer
to Car Wash Mode under Electric Drive
Unit 0 187 to place the vehicle in
N (Neutral).
If the 12-volt battery is dead and/or the
vehicle will not start, the vehicle will not
move. Try to jump start the vehicle. Refer
to Jump Starting - North America 0 347
and if the jump start is successful, retry
the Car Wash Mode procedure. If the
hood will not open, refer to Hood 0 296
for manual hood release location.
In the event the charging cord will not
release, see Emergency Manual Charge
Cord Release under Plug-In Charging
0 255.
If jump starting is unsuccessful, the
vehicle will not move. Tire skates or
dollies must be used under the non-rolling
tires to prevent vehicle damage.
Front Tow Hooks
The vehicle is equipped with two front tow
hooks used to pull the vehicle onto a flatbed
car carrier from a flat road surface. Always
pull straight, do not pull sideways on the
tow hooks.
Vehicle Care
Rear Tow Hooks
If equipped, the vehicle has two rear tow
hooks to pull the vehicle onto a flatbed car
carrier from a flat road surface. Always pull
straight, do not pull sideways on the tow
hooks.

Recreational Vehicle Towing

Warning
Dolly towing or dinghy towing may
damage the vehicle. Always put the
vehicle on a flatbed truck or trailer.
351

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