GMC YUKON 2018 Owner's Manual page 31

30 Keys, Doors, and Windows
Interference from radio-frequency
identification (RFID) tags may
prevent the key from starting the
vehicle. Keep RFID tags away from
the key when starting the vehicle.
The key is used for the driver door,
ignition, and glove box.
If equipped with memory seats,
keys 1 and 2 are linked to seating
positions of memory 1 or 2. See
Memory Seats 0 64.
Programming Keys to the
Vehicle
Follow these procedures to program
up to eight keys to the vehicle.
Programming with Two
Recognized Keys (Key
Vehicles Only)
To program a new key:
1. Insert the original, already
programmed key in the ignition
and turn the ignition on without
starting the engine.
2. Turn the ignition off and
remove the key.
3. Quickly, within five seconds,
insert the second original
already programmed key in the
ignition and turn the ignition on
without starting the engine.
4. Turn the ignition off and
remove the key.
5. Insert the new key to be
programmed, and within
five seconds, turn the ignition
on without starting the engine.
The security light will turn off
once the key has been
programmed.
6. Repeat Steps 1 5 if additional
keys are to be programmed.
If a key is lost or damaged, see your
dealer to have a new key made.
Programming without Recognized
Keys (Key Vehicles Only)
Program a new key to the vehicle
when a recognized key is not
available. Canadian regulations
require that Canadian owners see
their dealer.
If two currently recognized keys are
not available, follow this procedure
to program the first key.
This procedure will take
approximately 30 minutes to
complete for the first key. The
vehicle must be off and all of the
keys must be with you.
1. Insert the new vehicle key into
the ignition.
2. Turn the ignition on without
starting the engine. The
security light will come on.
3. Wait 10 minutes until the
security light turns off.
4. Turn the ignition off.