TIRE PRESSURE MONITOR RESET PROCEDURE
IMPORTANT: There are 3 different ways to reset the Tire Pressure Monitor (TPM) system. After resetting, the TPM system requires up to 30 minutes of straight line driving in each of the 3 speed ranges to complete the calibration process.If the TPM system does not reset, or DTC C1245 remains current, refer to Diagnostic System Check - Tire Pressure Monitoring. For further information, refer to Tire Pressure Monitor Description and Operation.
USING THE EXTERIOR LAMP SWITCH
USING THE RDS RADIO, IF EQUIPPED
It should reset by itslf , make sure all your tires have at least 33 psi it should go out by driving it ,some times it takes several miles ,if not take it to your local dealer they might take care of it n/c
SOURCE: low tire pressure warning light
To reset (calibrate) the system: The tire inflation
monitor system can be reset two ways. With the
ignition position at ON, pull the interior lamps
control to the ON and OFF settings three times.
It can also be reset through the radio using the
following steps:
1. Turn the ignition to ACC or ON and turn the
radio off.
2. Press and hold the TUNE DISP button on the radio for
at least five seconds until SETTINGS is displayed.
3. Press the SEEK PTYPE up or down arrow to scroll
through the main menu.
4. Scroll until TIRE MON appears on the display.
5. Press the 1 PREV or 2 NEXT button to enter the
submenu. RESET will be displayed.
6. Press the TUNE DISP button to reset. A chime will
be heard to verify the new setting and DONE will be
displayed for one second.
7. Once the monitor has been reset, scroll until EXIT
appears on the display.
8. Press the DISP button to exit programming. A chime
will be heard to verify exit.
The system completes the calibration process
during driving.
The system normally takes 15 to 20 minutes of driving
in each of three speed ranges to “learn” tire pressures.
The speed ranges are 15 to 40 mph (25 to 65 km/h),
40 to 65 mph (65 to 105 km/h) and above 65 mph
(105 km/h). When learning is complete, the system
will alert you after two to eight minutes if a tire is 12 psi
(83 kPa) different from the other three tires. Detection
thresholds may be higher and detection times may be
longer on rough roads, curves and at high speeds. The
system is not capable of detection at speeds greater than
70 mph (110 km/h).
If you don't have the manual, you can get it in PDF format for FREE from www.mygmlink.com
GoodLuck And PEACE
SOURCE: How do i reset the (tire low air pressure) warning
On a 2002 Impala, the tire pressure monitor can be reset using the interrior light switch.
With the key in the "ON" position, turn the interrior lamps from OFF to ON three times within 3 seconds. The TPMS light should go out. If it does not go out, repeat the procedure. If it still does not go out, then you may need to have your tire monitoring system diagnosed and repaired.
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