Tire pressure monitor system not working after battery change

[BST]

Swapped out the car battery on my 2015 Lacrosse using a memory saver and everything was saved except the tire pressure monitor system. The info screen has no readings for all 4 tires, except dashed lines. WTF?

 

[MelsRegal]

Did you look in the owners manual on how to reset the TPMS. Some can be done manually or others require an inexpensive tool.

 

[Mad_Coachman]

You beat me to it Mel....

 

[Mad_Coachman]

Does your Lacrosse have a Driver Info Center?

 

[BST]

As a last resort I might have to do that. I used an OBD memory saver which saved everything else, why not the TPMS? I haven't driven the car yet, just replaced the battery. So, maybe..... it will reset itself.

 

[BST]

Does your Lacrosse have a Driver Info Center?

Yes. It is a 2015 Lacrosse, Leather. It has everything. The info center has no readings for the tire pressure.

 

[Mad_Coachman]

Here's a link to the manual. Try area 10-52

2015 buick lacrosse Owner's Manual

Online View 2015 buick lacrosse Owner's Manual owner's manuals .Free Download PDF file of the 2015 buick lacrosse Owner's Manual technical documents.

www.carmanual.org

 

[BST]

Here's a link to the manual. Try area 10-52

2015 buick lacrosse Owner's Manual

Online View 2015 buick lacrosse Owner's Manual owner's manuals .Free Download PDF file of the 2015 buick lacrosse Owner's Manual technical documents.

www.carmanual.org

thanks, but the manual does not address the issue. I'll just wait until I drive it and see if it doesn't start working again. If not, I'll have to take it in and have it analyzed.

 

[2007LucerneCXL]

This vehicle requires a relearn TPMS tool as no instruction on a manual method is mentioned. Any of $10 Amazon type units are good enough.

 

[Mad*Max]

Swapped out the car battery on my 2015 Lacrosse using a memory saver and everything was saved except the tire pressure monitor system. The info screen has no readings for all 4 tires, except dashed lines. WTF?

Seems like those OBD savers are more trouble than good...I have changed batteries numerous times on my cars with TPMS and never experienced this, good luck with the fix!

 

[Mad_Coachman]

thanks, but the manual does not address the issue. I'll just wait until I drive it and see if it doesn't start working again. If not, I'll have to take it in and have it analyzed.

10-55 covers the re-learn process. You still need to purchase the activation tool as per the info at 10-55.

 

[EDSELRANGER]

Seems like those OBD savers are more trouble than good...I have changed batteries numerous times on my cars with TPMS and never experienced this, good luck with the fix!

Hey Mad Max... Are you saying you changed batteries without any type of memory saver? My '15 LaCrosse is about due for a new battery. I am considering a quick disconnect swap and hoping for the best with no 'saver' device.

Anyone know how long you have before memory info is lost?

 

[Anaduff]

What I find odd is that the TPMS units transmit ability is unrelated to the vehicles electrical system--sort of like replacing a battery in a pocket radio & then finding that the broadcast station went off the air.

Are there any other symptoms? Like remote lock/unlock not working?

 

[Mad*Max]

Hey Mad Max... Are you saying you changed batteries without any type of memory saver? My '15 LaCrosse is about due for a new battery. I am considering a quick disconnect swap and hoping for the best with no 'saver' device.

Anyone know how long you have before memory info is lost?

Yes, I have changed it on three different GM vehicles equipped with TPMS and on two of those it has been twice each. The only thing I had to do was re-index the windows (and maybe reset the clock although these days they usually auto-update).

 

[BST]

Hey Mad Max... Are you saying you changed batteries without any type of memory saver? My '15 LaCrosse is about due for a new battery. I am considering a quick disconnect swap and hoping for the best with no 'saver' device.

Anyone know how long you have before memory info is lost?

No, I used an OBD2 9V memory saver. Cheap and easy. Everything was still working after the battery change, except no readings on the TPMS. However, all I had to do was remove about 5 lbs of pressure from each tire and the TPMS started working again. No learning tool or any procedure required. Then, of course, added the pressure back up to normal. All is well again.

 

[BST]

No, I used a 9V memory saver. Everything was still working after the battery change, except no readings on the TPMS. However, all I had to do was remove about 5 lbs of pressure from each tire and the TPMS started working again. No learning tool or any procedure required. Then, of course, added the pressure back up to normal. All is well again.

What I find odd is that the TPMS units transmit ability is unrelated to the vehicles electrical system--sort of like replacing a battery in a pocket radio & then finding that the broadcast station went off the air.

Are there any other symptoms? Like remote lock/unlock not working?

Yeah, I find it extremely odd too. But, working fine now.

 

[BST]

Seems like those OBD savers are more trouble than good...I have changed batteries numerous times on my cars with TPMS and never experienced this, good luck with the fix!

This is the memory saver I used. $21.89 on Amazon. Good for 2 hrs.

 

[G-103774]

Swapped out the car battery on my 2015 Lacrosse using a memory saver and everything was saved except the tire pressure monitor system. The info screen has no readings for all 4 tires, except dashed lines. WTF?

The vehicle needs to learn the pressure s,and driven , normal operation