Lately when I start up my Low LR tire sensor kicks on it reads 168 but after driving for 10 min I can see the reading changing, and it goes back up to 200. Do I have a bad sensor in that tire?

 

Could very well be a sensor on its last leg, they only last on average 7-8 yrs. I would try to retrain all your sensors first.

 

Thanks for the info. retrain your sensors?

 

I used this message forwarded from a fellow forum member and it worked just as described. Thought I would post for anyone else that may need to reset their TPMs. 1) Turn ignition on 2) Press "Reset" button in order to clear any IPC display warning messages 3) Press and release the "Options" button on the DIC to scroll through the display options until the IPC display is blank 4) Press and hold the DIC "Reset" button for 3 seconds 5) Press the "Options" button again until TIRE TRAINING message appears 6) Press "Reset" button until the IPC "Learn L Front Tire" message appears in order to begin the programming 7) Install the J41760 Tire Pressure Monitor (TPM) System Programming Tool (large magnet will do) over the left front valve stem 8) The horn will sound, indicating the left front TPM sensor is programmed (if this takes more than 15 seconds, pull magnet back and try again, it will give you three tries. Then you must start over) 9) When the horn sounds, proceed to program the next TPM sensor in the following order as directed by the IPC messages: -Learn R Front Tire -Learn R Rear Tire -Learn L Rear Tire Programming can be canceled by turning ignition off, waiting 2 minutes with no sensors being learned, finishing all 4 wheels or through the DIC. If the programming is canceled with less than 4 sensors learned, it will only accept the codes programmed up to that point.

 

Is there any way to not run the sensors w/o getting an error? I have another set of wheels and I am considering regular tires, I don't really want to pay for sensors.

 

I think you need a tech-2 GM diagnostic tool to take the sensors out.

 

This is normal for when it starts to get cold outside. Put more air in your tires. The alarms come on at 26 psi. Your pressure increases as you drive.

 

Time to replace them but you say they read 168? Then goes to 200? Odd!

 

The TPM function can only be disabled on model year 2001 - 2004 C5s using a Tech II scan too. Earlier model years cannot.