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:

    Clutch fluid (if so equipped)
    Check the clutch fluid level in the reservoir (manual transmissions only). If the fluid level is below the MIN line, add Genuine NISSAN Super Heavy Duty Brake Fluid or equivalent DOT 3 fluid up ...

    Store a Name Tag for Speed Dialing
    1. Push . System responds: “OnStar ready.”. 2. Say “Store.” System responds: “Please say the number you would like to store.”. 3. Say the entire number without pausing. System resp ...

    Valet hand-off
    When you have to leave a key with a valet, give them the Intelligent Key itself and keep the mechanical key with you to protect your belongings. To prevent the glove box and the trunk from being o ...