Buick LaCrosse: Programming Transmitters to 
the Vehicle - Remote Keyless Entry (RKE) System Operation - Keys and Locks - Keys, Doors, and Windows - Buick LaCrosse Owners ManualBuick LaCrosse: Programming Transmitters to the Vehicle

Only RKE transmitters programmed to the vehicle will work. If a transmitter is lost or stolen, a replacement can be purchased and programmed through your dealer.

The vehicle can be reprogrammed so that lost or stolen transmitters no longer work. Any remaining transmitters will need to be reprogrammed. Each vehicle can have up to five transmitters matched to it.

    Keyless Trunk Opening
    Lift up on the touch pad located above the license plate to open the trunk if the RKE transmitter is within range. ...

    Programming with a Recognized Transmitter (Keyless Access Vehicles Only)
    A new transmitter can be programmed to the vehicle when there is one recognized transmitter. To program, the vehicle must be off and all of the transmitters, both currently recognized and new ...

    See also:

    Personal Lights
    Rear personal lights (sedan only) To turn the rear personal lights on, press the switch. To turn them off, press the switch again. Front map lights ...

    Blocking wheels
    Place suitable blocks 1 at both the front and back of the wheel diagonally opposite the flat tire 2 to prevent the vehicle from moving when it is jacked up. WARNING Be sure to block the wheel a ...

    Vanity mirrors (if so equipped)
    Coupe shown, sedan similar To access the vanity mirror, pull the sun visor down and flip open the mirror cover. Some vanity mirrors are illuminated and turn on when the mirror cover is open. ...