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Discussion Starter · #1 ·
Well , that damn thing is on and i cant reset it because i dont have my stock radio in there . its a 00 monte carlo SS , anyone know how to reset it without needing the stock radio ?
 

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DTC C1245 Low Tire Pressure Detected

Any of the following conditions can also cause this DTC to set.

1 The tire pressures have been adjusted without resetting the TPM system.
2 The tires have been rotated or replaced without resetting the TPM system.
3 Rough or slippery road conditions such as, dirt, gravel, wet, snow, or ice.
4 The tires are out of balance.
5 A suspension out of alignment.


Using the exterior lamp switch

1 Adjust all tire pressures to the recommended kPa/psi.
2 Turn ON the ignition, with the engine OFF.
3 Cycle the exterior lamp switch from OFF to parking lamps 3 times within 5 seconds.
4 Use the scan tool in order to clear the TPM DTC.


Using the RDS radio, if equipped

1 Adjust all tire pressures to the recommended kPa/psi.
2 Turn the ignition to ACC or ON, with the engine OFF.
3 Turn the radio OFF.
4 Press and hold the DISP button until SETTINGS is displayed.
5 Press the SEEK up or down arrows until TIRE MON is displayed.
6 Press the PREV or NEXT button to enter the submenu. RESET will be displayed.
7 Press the DISP button, A chime will sound and DONE will be displayed.
8 Scroll until EXIT is displayed.
9 Press the DISP button to exit the TPM reset mode. A chime will sound to verify exit.
10 Use the scan tool in order to clear the TPM DTC.
 

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Discussion Starter · #3 ·
i dont have the radio , but if i do the lap switch , i dont have a scan tool to clear the TPM , will it really matter if i skip that step ?
 

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Once you do the headlamp switch method, it will no longer read 'Check Tire Pressure' on the Message Center. The DTC will still be stored in memory, but will clear after time. I don't think an LS1M or Atap will even clear a Chassis (Cxxxx) code. You'd have to do that with a Tech2.
 

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Discussion Starter · #5 ·
okay got it , thanks mcss , where are you gettin all this info , do you also have the "change oil soon light" method ? that came on the other day and is sort of bothering me
 

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I just cut/past from GMSI, but it's on page 6-44 of your Owner's Manual.

To reset the oil,

1 Turn ignition ON, with the engine OFF
2 Fully press and release the accelerator pedal three times within five seconds. If the CHANGE ENGINE OIL message flashes, the system is reset. However, if it stays on, it did not reset. You'll need to repeat the reset procedure.


That's also in the manual on page 6-18.
 
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