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Some other computer settings, like the clock
and radio station presets, are also maintained
in memory by power from the low voltage
battery. When a technician disconnects and
connects the low voltage battery, these
settings are erased.
Note: Until you switch the ignition to the on
position, you will receive a message in your
information display stating that your vehicle
is not in park.
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.
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 345). Reset the power windows
bounce-back feature. See Windows and
Mirrors (page 97). Reset the radio station
presets. See Audio System (page 345).
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 your vehicle at least 10 miles (16
kilometers) to completely relearn the idle
and fuel trim strategy.
Note: Certain features may not operate if
the Battery Monitor System is not reset with
a scan tool following a jump start or battery
replacement. Normal electrical accessory
operation should resume after your vehicle
is left undisturbed for 8 hours.
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.
290
MKC (TME), enUSA
Maintenance
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