TPMS problem after tire replacement
Thread Starter
Le Mans Master
Joined: May 2002
Posts: 5,084
Likes: 786
From: Lebanon Township New Jersey
TPMS problem after tire replacement
I recently replaced all 4 tires on my 04 coupe with Continental non run flats. The TPMS sensors were not changed at this time. They are 11 years old and were working fine before the tire change.
The tire shop inflated each tire to 38 psi, according the dashboard readout. I checked each tire with a pressure gauge and confirmed the 38 psi reading. I lowered each tire pressure to 32 psi with my gauge. I drove the car a few miles 30 to 40 mph and noticed both passenger side tires reading 32 psi according to the dashboard, but both driver side tires still reading 38.
Will this correct itself?
I have a relearn tool. Will that process correct the issue?
Did 2 sensors go bad?
Thanks for any help.
The tire shop inflated each tire to 38 psi, according the dashboard readout. I checked each tire with a pressure gauge and confirmed the 38 psi reading. I lowered each tire pressure to 32 psi with my gauge. I drove the car a few miles 30 to 40 mph and noticed both passenger side tires reading 32 psi according to the dashboard, but both driver side tires still reading 38.
Will this correct itself?
I have a relearn tool. Will that process correct the issue?
Did 2 sensors go bad?
Thanks for any help.
1st Gear
Joined: Aug 2015
Posts: 1
Likes: 1
Relearn
I recently replaced all 4 tires on my 04 coupe with Continental non run flats. The TPMS sensors were not changed at this time. They are 11 years old and were working fine before the tire change.
The tire shop inflated each tire to 38 psi, according the dashboard readout. I checked each tire with a pressure gauge and confirmed the 38 psi reading. I lowered each tire pressure to 32 psi with my gauge. I drove the car a few miles 30 to 40 mph and noticed both passenger side tires reading 32 psi according to the dashboard, but both driver side tires still reading 38.
Will this correct itself?
I have a relearn tool. Will that process correct the issue?
Did 2 sensors go bad?
Thanks for any help.
The tire shop inflated each tire to 38 psi, according the dashboard readout. I checked each tire with a pressure gauge and confirmed the 38 psi reading. I lowered each tire pressure to 32 psi with my gauge. I drove the car a few miles 30 to 40 mph and noticed both passenger side tires reading 32 psi according to the dashboard, but both driver side tires still reading 38.
Will this correct itself?
I have a relearn tool. Will that process correct the issue?
Did 2 sensors go bad?
Thanks for any help.
Le Mans Master
Joined: Dec 2017
Posts: 5,554
Likes: 3,302
From: Virginia
2021 C5 of the Year Finalist - Modified
St. Jude Donor '21-'22
You don't need a relearn tool. Just use the DIC and a round magnet. The car does not update the tire pressure in real time. You might just need to drive it a bit more. While these sensors do go bad over time. I wouldn't think that you would have this on 11 year old sensors. I would try just driving the car for 20 minutes and see what happens. If the issue doesn't resolve itself, you could then try to retrain the sensors. Not sure why the shop would inflate the tires to such a high pressure. The recommended is 30psi.
If you aren't getting error messages on the DIC regarding your tire pressure monitoring system, my bet is that this will resolve itself.
If you aren't getting error messages on the DIC regarding your tire pressure monitoring system, my bet is that this will resolve itself.
Thread Starter
Le Mans Master
Joined: May 2002
Posts: 5,084
Likes: 786
From: Lebanon Township New Jersey
Thanks for the info.
I'll try driving it for a while. That's easy. If necessary, then I'll try the relearn process.
I'll try driving it for a while. That's easy. If necessary, then I'll try the relearn process.
Last edited by Vetteman Jack; Jul 30, 2022 at 03:45 PM.
Drifting
Joined: Sep 2004
Posts: 1,737
Likes: 349
From: Layton Utah
I find it sometimes takes several miles to wake them up. If they were registering 38 to begin with, they must have synced. My bet is that if you drive it for a while, it will resolve itself. Good luck.
Thread Starter
Le Mans Master
Joined: May 2002
Posts: 5,084
Likes: 786
From: Lebanon Township New Jersey
Thanks guys. All good advice here. As it turns out I drove about 15 minutes at 45 - 50 on my way to the interstate. Before I got there the two sleepy sensors woke up and are now reading properly. They even increased 1 psi as I drove further and the tires heated up.
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Glad you got the sensors to read properly. Sometimes it just does take a little more driving around to get them to read properly.
Melting Slicks
Joined: Jun 2013
Posts: 3,473
Likes: 691
From: West Virginia
All good. Except "sleepy sensors" means they are approaching end of life. When I had new sensors at about14 years old, I could not believe how much quicker the new ones came "online".
As to price, Tire Rack has them for $42 per.
As to price, Tire Rack has them for $42 per.
