2013 Acura TL Owner's Manual - Page 181

Keyless Access System When you lock the doors, some exterior lights blink and the system beeps once. If no exterior lights blink and/or no beeper sounds, check to see if the trunk or hood is open. To change the ''KEYLESS ACCESS LIGHT FLASH'' setting, see page 117. To change the ''KEYLESS ACCESS BEEP'' setting, see page 118 . Within 2 seconds of pressing the door lock button or locking the doors with the remote, pull the handle to make sure the doors are actually locked. The door unlock sensors will not operate for about 2 seconds after the doors are locked. The door lock button does not work if: The remote is not within the operating range. Any door is open. The power mode is not set to VEHICLE OFF (LOCK). The remote is in the keyless access slot. The remote is too close to the vehicle. The remote battery is dead. The vehicle battery is dead. Door Lock Prevention If you open the driver's door, pull its lock tab rearward on the door, and shut it when the remote is inside the vehicle, the driver's door will unlock. Make sure you carry the remote with you when you lock the doors. This function is also activated on the front passenger's door. If you open the front passenger's door, and shut it after pulling its lock tab rearward when the remote is inside the vehicle, all doors will unlock. The door lock prevention will also activate if you try to lock the doors with the master door lock switch when the remote is inside the vehicle. Instruments and Controls 2013 TL 177