TPMS behavior questions
Thread Starter
Melting Slicks
Joined: Aug 2006
Posts: 2,409
Likes: 129
From: Fairview Heights IL
TPMS behavior questions
When I swapped Red's summer & winter wheels & tires in early November, I couldn't get my ATEQ VT10 tool to register the winter sensors. Neither could my dealership using their Tech II. The DIC showed steady tire pressures all around, which I believe were those of the summer wheels/tires.
Two months later, when temps plummeted into single digits, Red's TPMS finally released the old sensor readings and displayed XX the way it should have in November. I pulled out my VT10 and this time it just worked.
Is this clinging to the old readings -- apparently disabling even Tech II resets -- normal behavior? Or is it possible that what I'm seeing is evidence that the sensors' batteries are nearing the ends of their lives?
Two months later, when temps plummeted into single digits, Red's TPMS finally released the old sensor readings and displayed XX the way it should have in November. I pulled out my VT10 and this time it just worked.
Is this clinging to the old readings -- apparently disabling even Tech II resets -- normal behavior? Or is it possible that what I'm seeing is evidence that the sensors' batteries are nearing the ends of their lives?
Race Director
Joined: Oct 2010
Posts: 14,475
Likes: 785
From: Las Vegas NV
If you have a separate set of sensors in each set of tire/wheels I don't think you should need to reprogram them to the car. Just put the winter set on in the same position they were before and the car will read them. It may take a few miles to get them to adjust but you shouldn't need to do any reprogramming. When you switch back to summer tires/wheels put them in the same place and the car should read them instead of the winter ones. This is assuming both sets were programmed to the car at one point already. I'm not sure of this but I think that's the way it works.
BTW, when I got XX on one of mine it was due to the the battery being weak.
BTW, when I got XX on one of mine it was due to the the battery being weak.
Last edited by EVRose; Jan 21, 2015 at 06:11 PM.
Melting Slicks
Joined: Jan 2004
Posts: 2,299
Likes: 387
From: Fort Worth TX
St. Jude Donor '14-'15
I have two sets of wheels also; track and street, both with TPMS. IF I were to drive the car right after swapping out all four, I would have to drive a few miles before getting XX on the DIC. It seems to take a little time before the wheels sensors wake up and then a few miles before they communicate with the DIC.
Having said that, I can reset all four of the sensors right after mounting (before driving) using my VT10. I guess the first thing I would ask is how cold did the tires get while in storage and how old are the TPMS units?
Having said that, I can reset all four of the sensors right after mounting (before driving) using my VT10. I guess the first thing I would ask is how cold did the tires get while in storage and how old are the TPMS units?
Thread Starter
Melting Slicks
Joined: Aug 2006
Posts: 2,409
Likes: 129
From: Fairview Heights IL
I have two sets of wheels also; track and street, both with TPMS. IF I were to drive the car right after swapping out all four, I would have to drive a few miles before getting XX on the DIC. It seems to take a little time before the wheels sensors wake up and then a few miles before they communicate with the DIC.
Having said that, I can reset all four of the sensors right after mounting (before driving) using my VT10. I guess the first thing I would ask is how cold did the tires get while in storage and how old are the TPMS units?
Having said that, I can reset all four of the sensors right after mounting (before driving) using my VT10. I guess the first thing I would ask is how cold did the tires get while in storage and how old are the TPMS units?
I'll probably invest in two full sets of TPMS sensors sometime next year. Ten years is their design lifetime.
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,106
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
I have two identical sets of OEM chromes from very early in the 2007 model year -- actually acquired in late summer 2006. One set has had my Pirelli Sottozero winter tires installed since the fall of 2008. The other originally had GY GS2s, and now Firestone runflats. I've always used my VT10 to reset the TPMS whenever I change them, but this year the BCM (?) didn't seem to recognize the change for several weeks. Until it did, there was nothing I could do with my VT10, and likewise nothing my dealership could do with their Tech II. Maybe it was a deep freeze, maybe a phase of the moon, but something happened five or six weeks later to change the TPMS readings from 25 or 26 psi to XX. Once that happened, my VT10 worked like a charm.
I'll probably invest in two full sets of TPMS sensors sometime next year. Ten years is their design lifetime.
I'll probably invest in two full sets of TPMS sensors sometime next year. Ten years is their design lifetime.
Racer
Joined: Mar 2012
Posts: 420
Likes: 9
From: Bow New Hampshire
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,106
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
Sensors that have their ID changed to match and existing ID are considered cloned. How that would work for you, is to create a second set of sensors with identical ID's as your first set. If set 1 is Summer tires and set 2 is Winter tires, when you swap wheels to the same corners, the car already knows what ID is where, so no relearn is necessary.
It's like a read/write DVD, instead of read only. If you can check the battery level in your current sensors, then only buy one set of clonable sensors and create clones of your best 4. When those 4 eventually die, you can still clone more.
Orange Electronics is one brand and Titan used to be a sponsor here, but Google cloneable tpms sensors for more.
It's like a read/write DVD, instead of read only. If you can check the battery level in your current sensors, then only buy one set of clonable sensors and create clones of your best 4. When those 4 eventually die, you can still clone more.
Orange Electronics is one brand and Titan used to be a sponsor here, but Google cloneable tpms sensors for more.
Le Mans Master
Joined: Nov 2003
Posts: 5,401
Likes: 52
From: Norman OK
When I have sensors not reading I let air out of the tires then drive around the block reair the tires and the sensors reset and read correctly, I have done this three times. Not sure why this works but it does.
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Team Owner
Joined: Mar 2008
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From: Southern Utah
If you stack the other set of wheels near the car in the garage, the car will continue to read them, even though they are not on the car. It will take approximately 30 miles for the system to let you know that it cannot see any of the four sensors and display XX. When you get back to the garage, the car again finds and reads the sensors in the stacked tires. If you never get 30 miles away from the garage, the car will appear completely normal. This is why some people have thought that their new sensors programmed themselves. They didn't. I have no explanation for why the TPMS tool couldn't get a response from the new wheels. It should have.
I have the same as you...two sets of chromes, one from 2007 and one from 2006. All sensors still working fine. I have the A/S Plus tires on one and the Super Sports on the other set. Keep in mind that the sensors go to sleep after a while with no movement, so the battery life is extended with fewer miles. Most Vettes have fewer miles.
I have the same as you...two sets of chromes, one from 2007 and one from 2006. All sensors still working fine. I have the A/S Plus tires on one and the Super Sports on the other set. Keep in mind that the sensors go to sleep after a while with no movement, so the battery life is extended with fewer miles. Most Vettes have fewer miles.
Last edited by cclive; Jan 22, 2015 at 10:43 PM.
Melting Slicks
Joined: Jan 2004
Posts: 2,299
Likes: 387
From: Fort Worth TX
St. Jude Donor '14-'15
I have the Orange brand in my street tires; only a couple of years old and I'm having issues with one tire (Driver's Front), it like to drop out (XX on the DIC) for 15 minutes or so while driving. Will probably wind up replacing it before my next road trip if it doesn't get with the program
.Good luck with yours