GMC Yukon 2021 Owner's Manual page 11

10 Keys, Doors, and Windows
Driver Side Shown, Passenger Side Similar
Pressing the lock/unlock button will cause
all doors to lock if any of the following
occur:
It has been more than five seconds since
the first lock/unlock button press.
Two lock/unlock button presses were
used to unlock all doors.
Any vehicle door has been opened and all
doors are now closed.
Keyless Unlocking/Locking from the
Passenger Doors
When the doors are locked and the remote
key is within 1 m (3 ft) of the door handle,
pressing the lock/unlock button on a
passenger door handle will unlock all doors.
Pressing the lock/unlock button will cause
all doors to lock if any of the following
occur:
The lock/unlock button was used to
unlock all doors.
Any vehicle door has been opened and all
doors are now closed.
Disable/Enable Keyless Unlocking of Exterior
Door Handles and Liftgate
If equipped, keyless unlocking of the exterior
door handles and liftgate can be disabled
and enabled.
Disabling Keyless Unlocking:
With the vehicle off, press and hold
on the remote key at the same time for
approximately three seconds. The turn signal
lamps will flash four times quickly to
indicate access is disabled. Using any
exterior handle to unlock the doors or open
the liftgate will cause the turn signal lamps
to flash four times quickly, indicating access
is disabled. If disabled, disarm the alarm
system before starting the vehicle.
Disabling Keyless Unlocking may also be
configured under Vehicle Personalization
0 125.
Enabling Keyless Unlocking:
With the vehicle off, press and hold
on the remote key at the same time for
approximately three seconds. The turn signal
lamps will flash twice quickly to indicate
access is enabled.
Enabling Keyless Unlocking may also be
configured under Vehicle Personalization
0 125.
Passive Locking
The Keyless Access system will lock the
vehicle several seconds after all doors are
closed, if the vehicle is off and at least one
remote key has been removed from the
and
interior, or none remain in the interior.
If other electronic devices interfere with the
remote key signal, the vehicle may not
detect the remote key inside the vehicle.
If passive locking is enabled, the doors may
lock with the remote key inside the vehicle.
Do not leave the remote key in an
unattended vehicle.
To customize the doors to automatically lock
when exiting the vehicle, see Remote Lock,
Unlock, Start under Vehicle Personalization
0 125.
and