Remote Vehicle Start - GMC Cadillac CT5 2021 Manual

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. Turn the remote key over.
4. Remove the battery cover.
5. Remove the seal by pulling on the
tab to access the battery.
KEYS, DOORS, AND WINDOWS
6. Remove the old battery. Do not use
a metal object.
7. Insert the new battery, negative
side facing down. Replace with a
CR2450 or equivalent battery.
8. Replace the seal, pushing it into
the groove around the battery
compartment.
9. Replace the battery cover by
snapping it back into the
remote key.
10. Reinsert the mechanical key.

Remote Vehicle Start

This feature allows the engine to be
started from outside the vehicle.
: This button on the remote key is
for remote start.
The climate control system will use
the previous settings during a remote
start. The rear window defogger may
come on during remote start based on
cold ambient conditions. The rear
defog indicator light does not come on
during remote start.
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