
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Keys, Doors, and Windows
19
Keyless Access
When the doors are locked
and the remote key is within
1 m (3 ft) of the driver door
handle, press the lock/unlock
button. When unlocking from
the driver door, the first press
unlocks that door; press again
within five seconds to unlock
the passenger door and the
trunk. See Remote Key
Operation
Driver Door Key Lock
Cylinder Access (In Case of
Dead Battery)
To access the driver door key
lock cylinder:
1. Pull the door handle (1) to
the open position and hold
it open until the cap
removal is complete.
2. Insert the mechanical key
into the slot (3) on the
bottom of the cap (2) and
lift the mechanical key
upward.
3. Move the cap (2) rearward
and remove.
4. Use the mechanical key in
the cylinder.
To replace the cap:
1. Pull the door handle (1) to
the open position and hold
it open until the cap
installation is complete.
2. Insert the two tabs (6) at
the back of the cap
between the seal (5) and
the metal base (4).