Because your vehicle’s engine is
electronically-controlled by a computer,
some engine control settings are
maintained by power from the low-voltage
battery. Some engine computer settings,
like the idle trim and fuel trim strategy,
optimize the driveability and performance
of the engine. The clock and radio station
presets are also maintained in memory by
power from the low-voltage battery. These
settings are erased when a technician
disconnects and connects the low-voltage
battery.
Complete the following procedure in order
to restore the settings:
1. With the vehicle at a complete stop,
set the parking brake.
2. Shift the transmission into P (Park)
3. Turn off all accessories.
4. Step on the brake pedal and start the
vehicle.
5. Run the engine until it reaches normal
operating temperature. While the
engine is warming up, complete the
following: Reset the clock. See Audio
System (page 299). Reset the power
windows bounce-back feature. See
Windows and Mirrors (page 74).
Reset the radio station presets. See
Audio System (page 299).
6. Allow the engine to idle for at least one
minute. If the engine turns off, step on
the accelerator to start the engine.
7. While the engine is running, step on the
brake pedal and shift the transmission
to N.
8. Allow the engine to run for at least one
minute by pressing on the accelerator
pedal.
9. Drive the vehicle at least 10 miles (16
kilometers) to completely relearn the
idle and fuel trim strategy. Note: If you do not allow the engine to
relearn the idle and fuel trim strategy, the
idle quality of your vehicle may be adversely
affected until the engine computer
eventually relearns the idle trim and fuel
trim strategy.
Note: Always dispose of automotive
batteries in a responsible manner. Follow
your local authorized standards for disposal.
Call your local authorized recycling center
to find out more about recycling automotive
batteries.
Note: It is recommended that the negative
battery cable terminal be disconnected from
the battery if you plan to store your vehicle
for an extended period of time.
CHECKING THE WIPER
BLADES E142463
Run the tip of your fingers over the edge of
the blade to check for roughness.
Clean the wiper blades with washer fluid
or water applied with a soft sponge or
cloth.
CHANGING THE WIPER
BLADES The wiper arms can be manually moved
when the ignition is off. This allows for ease
of blade replacement and cleaning under
the blades.
251Maintenance
