it does matter, as the vehicle has to know what tire is in which position, unlike most manufacturers, you have to do a complete procedure on these vehicles, as it only has 1 receiver, as in some manufacturers use independent receivers for each wheel, and they do not have a procedure to relearn positions, it does it automatically in some cases.
if you have the vehicle thinking the tires are set in position, say you rotate the tires and now the RF has a leak, well that tire was in the right rear before rotation, and now it has a leak, but the vehicle thinks its in the right rear, because the vehicle was never reset to have the tire positions learned.
easiest way to tell is with a tech 2 and the kent moore tool for the TPM systems. you can diagnose systems relatively easy with both tools.
it gives you the ability to view which sensor is in each wheel, by providing individual TPM sensor ID's unique to each wheel and vehicle. if you have a system that is suspect to have an issue with the system, you can verify that the vehicle knows where each tire is placed, it will display the ID information on the tech 2 for each individual wheel, and which position they are in.
ASE Master Certified Technician
currently driving- 09 Chevy Impala LT, 83 Chevy Camaro Z28
Lets say my dealer rotated my tires and I don't know if they did this procedure. I assume its ok to do it myself even if I would in effect be doing it over again??
If you're not sure if the dealer did it, you can either do it yourself, or do a test by letting pressure out of, say, the left front, then checking the DIC (driver information center) to see if it matches.
My dealer skipped the step, so I performed the reset procedure and it went fine. My only issue was that the blinkers didn't indicate which wheel to do, so I had to just follow the instructions without that additional aid.
2009 Chevrolet Malibu LS
Got the 2nd tire rotation yesterday and reset TPMS. It worked great as usual. Just for curiosity, I paid some attention to the turn signals this time as there have been some complaints that the signals did not come on. The signals did come on for me. They flashed only one time very quick after the chirp sounded (about 1 sec or less). So you have to pay close attention to recognize it. As stated in other thread, this turn signal flash is obsolete because you already know the tire order needs to be done.
08 2LT White/Titanium, 4cyl/4spd
Born 04/08 Lake Orion
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