Remote Vehicle Start - GMC HUMMER EV 2022 Owner's Manual

12 Keys, Doors, and Windows
To replace the battery:
1. Press the button on the side of the
remote key and pull the mechanical key
out. Never pull the mechanical key out
without pressing the button.
2. With the mechanical key removed, insert
a flat, thin object in the center of the
remote key to separate and remove the
back cover.
3. Lift the battery with a flat object.
4. Remove the battery.
5. Insert the new battery, positive side
toward the back cover. Replace with a
CR2032 or equivalent battery.
6. Push together the remote key.
7. Reinsert the mechanical key.

Remote Vehicle Start

This feature starts the heating or air
conditioning systems and the rear window
defogger from outside the vehicle.
Use remote start to heat or cool the interior
when the vehicle is plugged in to maximize
electric range by utilizing electricity from
the electrical outlet. Normal system
operation will return after the vehicle has
been turned on.
: This button is on the remote key.
The climate control system will use the
previous settings during a remote start. The
rear defog may come on during a remote
start based on cold ambient conditions. The
rear defog indicator light will not come on
during a remote start.