Electrical system, Electrical system overload, System -38 – Hummer 2010 H3 User Manual

Page 304: Overload -38, 38 vehicle care

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10-38

Vehicle Care

Electrical System

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
the following in the vehicle:

.

Headlamp Wiring

.

Windshield Wiper Motor

.

Power Windows and other
Power Accessories

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.

Power and Heated Seat Circuit
Breakers

There is a circuit breaker located
underneath the driver side front seat
that controls the power and heated
seat functions.

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