Buick LaCrosse: Electrical System Overload - Electrical System - Vehicle Care - Buick LaCrosse Owners ManualBuick LaCrosse: Electrical System Overload

The vehicle has fuses and circuit breakers to protect against an electrical system overload.

When the current electrical load is too heavy, the circuit breaker opens and closes, protecting the circuit until the current load returns to normal or the problem is fixed. This greatly reduces the chance of circuit overload and fire caused by electrical problems.

Fuses and circuit breakers protect power devices in the vehicle.

Replace a bad fuse with a new one of the identical size and rating.

If there is a problem on the road and a fuse needs to be replaced, the same amperage fuse can be borrowed. Choose some feature of the vehicle that is not needed to use and replace it as soon as possible.

Headlamp Wiring

An electrical overload may cause the lamps to go on and off, or in some cases to remain off. Have the headlamp wiring checked right away if the lamps go on and off or remain off.

Windshield Wipers

If the wiper motor overheats due to heavy snow or ice, the windshield wipers will stop until the motor cools and will then restart.

Although the circuit is protected from electrical overload, overload due to heavy snow or ice may cause wiper linkage damage.

Always clear ice and heavy snow from the windshield before using the windshield wipers.

If the overload is caused by an electrical problem and not snow or ice, be sure to get it fixed.

    High Voltage Devices and Wiring
    WARNING! Exposure to high voltage can cause shock, burns, and even death. The high voltage components in the vehicle can only be serviced by technicians with special training. High voltage ...

    Fuses and Circuit Breakers
    The wiring circuits in the vehicle are protected from short circuits by a combination of fuses and circuit breakers. This greatly reduces the chance of damage caused by electrical problems. ...

    See also:

    EVIC Units Selection (Units In Display)
    Displays the units used for the Outside Temperature, Average Fuel Economy, Distance to Empty and Tire Pressure features. Press and Release the SELECT button to toggle units between U.S. and METR ...

    Do not operate the engine within the tachometer's RED ZONE. This may cause severe engine damage.
    Engine temperature gauge This gauge shows the temperature of the engine coolant when the ignition switch is ON. Do not continue driving with an overheated engine. If your vehicle overheats, re ...

    Immobilizer system (if equipped)
    Your vehicle is equipped with an electronic engine immobilizer system to reduce the risk of unauthorized vehicle use. Your immobilizer system is comprised of a small transponder in the ignition key ...