Note: After cleaning or replacing the
battery, make sure you reinstall the battery
cover or shield.
When a battery replacement is required,
you must use a recommended
replacement battery that matches the
electrical requirements of the vehicle.
Note: Contact an authorized dealer for low
voltage battery access, testing or
replacement.
To make sure the battery management
system works correctly, do not connect an
electrical device ground connection
directly to the low voltage battery negative
post. This can cause inaccurate
measurements of the battery condition
and potential incorrect system operation.
Note: If you add electrical accessories or
components to the vehicle, it may adversely
affect the low voltage battery performance
and durability. This may also affect the
performance of other electrical systems in
the vehicle.
For longer, trouble-free operation, keep the
top of the battery clean and dry.
If you see any corrosion on the battery or
terminals, remove the cables from the
terminals and clean with a wire brush. You
can neutralize the acid with a solution of
baking soda and water.
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.
To restore the settings, do the following:
1.
Apply the parking brake.
2. Shift into park (P) or neutral (N).
3. Switch off all accessories.
4. Press the brake pedal and start your
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 314). Reset the power
windows bounce-back feature. See
Windows and Mirrors (page 83).
Reset the radio station presets. See
Audio System (page 314).
6. Allow the engine to idle for at least one
minute.
7.
Drive the vehicle at least 10 mi (16 km)
to completely relearn the idle trim 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.
Make sure that you dispose of old batteries
in an environmentally friendly way. Seek
advice from your local authority about
recycling old batteries.
If storing your vehicle for more than 30
days without recharging the battery, we
recommend that you disconnect the
battery cables to maintain battery charge
for quick starting.