Buick LaCrosse: ENGINE 
OVERHEATED — IDLE 
ENGINE - Engine Cooling System Messages - Vehicle Messages - Instruments and Controls - Buick LaCrosse Owners ManualBuick LaCrosse: ENGINE OVERHEATED — IDLE ENGINE

This message displays when the engine coolant temperature is too hot. Stop and allow the vehicle to idle until it cools down.

    COOLANT LEVEL LOW ADD COOLANT
    This message will display if the coolant is low. See Engine Coolant. ...

    ENGINE OVERHEATED — STOP ENGINE
    This message displays and a continuous chime sounds if the engine cooling system reaches unsafe temperatures for operation. Stop and turn off the vehicle as soon as it is safe to do so to avo ...

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    Using the remote control
    General information Take the remote control with you People or animals left unattended in a parked vehicle can lock the doors from the inside. Always take the remote control with you when leav ...

    Overdrive Operation
    The automatic transmission includes an electronically controlled Overdrive (fourth gear). The transmission will automatically shift into the Overdrive gear if the following conditions are presen ...

    Add-on Electrical Equipment
    The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment. Added electrical equipment may interfer ...