Acura 2012 ZDX Owner's Manual page 106

uuLocking and Unlocking the DoorsuKey Types and Functions
■
Retractable master keys
Release Button
Press
■
Keyless access remote
Release Button
Built-in Key
* Not available on all models
104
*
The master key folds up inside the remote
transmitter.
1. Press the release button to release the key
out from the transmitter.
u Make sure to fully extend the key.
2. To close the key, press the release button
then push the key inside the transmitter
until you hear a click.
*
The built-in key can be used to lock/unlock the
doors and the tailgate when the keyless access
remote battery becomes weak and the power
door lock/unlock operation is disabled.
To remove the built-in key, pull it out while
pressing the release button. To reinstall the
built-in key, push the built-in key into the
keyless access remote until it clicks.
1Retractable master keys *
If the key is not fully extended, the immobilizer
system may not work properly, and the engine may
not start.
Avoid contact with the key whenever it extends or
retracts.