Remote Vehicle Start - GMC Hummer EV 2024 Owner's Manual

GMC Hummer EV Owner Manual (GMNA-Localizing-MidEast-16639039) -
2024 - CRC - 3/20/23
12 Keys, Doors, and Windows
To replace the battery:
1. Press the button on the side of the
remote key near the bottom and pull the
mechanical key out. Never pull the
mechanical key out without pressing the
button.
2. Use the mechanical key blade in the slot
to remove the battery cover by hand.
3. Remove the battery cover.
4. Pull the seal by pulling on the tab to
access the battery.
5. Remove the old battery. Do not use a
metal object.
6. Insert the new battery, positive side
facing up. Replace with a CR2450 Lithium
or equivalent battery.
7. Place the seal back into the groove
around the battery compartment.
8. Replace the battery cover by snapping it
back into the remote key.
9. 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