Electrical System Overload; Headlamp Wiring; Windshield Wipers - Cadillac 2010 CTS Owner's Manual

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
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.
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.