I took my 2006 crossfire roadster in for new tires all around and balancing. Also had the garage look into why my light for a light bulb replacement remains lit, but we could not find a light out. So the car was put on a "board" to check all sensors. It did not trip anything. I was told the light on the dashboard being on would not fail me on an inspection. The car came back with not only the "light bulb" icon lit up but also the "tire inflation sensor" lit up. We found the tires to be underinflated and filled them to the proper poundage. The light did not go off, and the tires have maintained the correct poundage that we filled them to. So, I now have 2 lights that remain lit up on my dashboard! Any thoughts?

 

When they did your new tires, did you tell them to replace the stems? Sometimes, it takes a couple of miles for the sensors to clear a light BUT if they swapped the stems your sensors might be missing now. Also, DID YOU have them 'service' the TPMS existing stems? Might be why a light is lit. How old are the sensors in the car now? The batteries in the sensors last approximately 10 years (some higher some lower).

NEVER heard of putting a car on a 'board' to check sensors for a lamp out indicator???

May be a few more questions but these should help ppl help you for now...


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The most common bulbs missed when looking for one that is out is the rear license plate lights.
Often when installing new tires the Guy breaks a sensor taking the tire off. They will be loathe to admit that though. Have you taken the car for a ride after putting air in the tyres? Some say it needs a run to reset the light but I have not found that to be true. I am also not sure if the sensors have to go back in the same position they came from. Food for thought though.

 

Thank you for your quick response. Funny you should mention the license plate light. We noticed it was out when we got the car back. I am in the process of getting the bulb to replace it..

Regarding the tires, I have been driving on them for 4 days and the light remains lit.
I appreciate your response.

 

When I had a new set of tires installed a couple of years back, I specifically told Discount Tire to install the wheels in the exact same position that they came off of. I didn't want the TPMS Module looking for sensors in a certain position & not finding the sensors where they were supposed to be. (Note: Not sure the TPMS Module will "re-learn" sensors by driving a few miles.) However, since I have the DRB3 Emulator software, it is no longer an issue. I can "re-learn" the TPMS wheel sensors & write that information to the TPMS Module.

 

Great "heads-up"!

 

The one that got me was a bad brake light bulb. The brake lights are the ONE lamp that will "latch" the light on, others will light the light only when that particular light is turned on - brake lights will light the light as soon as you hit the brake, but the light stays on till you shut the car off. I finally saw it as I started the car, I was looking at the light out indicator - it came on when I hit the brake, and stayed on when I let off the brake.

As to you tire light - well, they either screwed up a TPMS sensor or the internal battery of one of the sensors just happened to reach end of life.

(I was under the impression that location of the sensor didn't matter, but I bet it DOES matter - every time Iv'e had tires replaced, ONE GUY did all the work, one wheel at a time - so it's never been an issue for me.)

 

There is a Forum Member that replaced the original OEM wheel sensors with the Shrader 33500 wheel sensors. He claims that the TPMS warning light comes on when he starts the car but goes out after he drives a few miles. Haven't figured out why a "re-learn" occurs but it's only temporary. Could this be a tire with air pressure right on the borderline & after the tire heats up, & the tire pressure increases, the warning light goes out. Not convinced this Forum Member has that condition based on his experience & knowledge of this car.

 

Most likely... As you drive the car the heat in the tire will build up. IF the pressure is at the low threshold it can trip the light back off. Also, a battery in the sensor at its life limit could be just warming up a little and having a slight increase in voltage thereby sending the signal to the TPMS receiver.

The ONLY reason the manual says to do the 'relearn' in a set pattern, IN MY OPINION, is to provide a sequence to its setup. I have seen posts of ppl who have all 4 rim/tire sizes the same (or 18's front & 19's rear OEM), and when they rotate the tires there is no problems with the TPMS working properly.


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Would seem to make sense to me. I've got a 2012 Ford Fiesta SE Hatchback and the local Ford dealer performs a tire rotation every time I have them do an oil change. Either they are executing a "re-learn" process (doubt it) or the TPMS Module automatically adjusts since all the wheel sensors are the same. I also had a new set of tires recently installed by Discount Tire and I doubt they re-installed the tires in the exact same location. And since I watched them perform the work while sitting at the shop window in the lobby, I didn't see anyone perform any type of "re-learn" process with a scanner.

 

Our TPMS system is not like the newer ones that tell you specifically which tire is hi or low.

 

To pass a safety check in November I needed better tyres, as time was short I borrowed two rear tyres and rims from another SRT, no lights appeared on the dash.

 

That is really interesting!!

 

Yeah - It is a "bummer" in that the TPMS on the Crossfire only tells you there is an issue. We don't know whether it is a defective wheel sensor or which one. Could even be a defective TPMS Module. If it is just low tire pressure, we don't know which tire. With some of the newer systems, the warning light will ""blink" if it is a system defect. I might have that backwards on whether the blinking warning light is for a system defect or low tire pressure. For the model years back then, probably a fairly good system.

 

If you get the DRB 3 emulator it reads the TPMS module and will tell you which tire is low, defective sensor etc. Yes not being able to see it on the dashboard isn't ideal but this is from around 2003.

 

WOW. When I swapped all four wheels/tires between my Red Roadster and my Graphite Roadster - I had tire lights on both cars.
Went to dealer, for $50 per car, the guy re-educated both cars and the lights went out.

What is going on here? Dave, could your TPMS system be 'out of order' altogether? If you bleed a tire down to 20 psi, then drive a mile or two, does the light come on?

 

It is fine, the safety test was in 2011 when I got the car. The light goes on when the air pressure gets too low. These batteries are nearly 16 years old now as the car was made at the end of 2004.