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TPS light comes on even after filling up with air

13K views 97 replies 26 participants last post by  Vangm25  
#1 ·
I have a '14.5 Camry.
Got it 9.15.20. Made it thru a year with no issues in terms of tire pressure or the light.
Today the light came on. I went to Valvoline and they got it back to 37 psi. Recommended was 35. It had gone down to 32.

Light went off. It then came on and stayed on 20 minutes later.
No flat or unusual shape.

Do I need new tires?
 
#3 ·
If the TPMS light comes on (amber), AND you have confirmed your tire pressures are all within range, but the light flashes 60-90 seconds and then stays on solid amber, then you likely have a bad sensor/bad battery in the TPMS sensor. The sensors are sealed units, so a bad battery = a sensor replacement. They typically last around 9 years and when one goes, the others typically follow.

You'll see intermittent issues before the battery finally gives up the ghost and dies (so taking it in to be looked at, might result in the mechanic telling you it seems just fine to them).... and then the light will start flashing again on you an hour after you leave.

Discount Tire has quoted me $60 for each sensor and $15 labor for each of them to replace them (so it's about $300 total plus tax in California to replace all 4). I'm sure the dealership will charge more than that (but I haven't checked). And yes it makes sense to replace all of them and not cheap out and do one at a time. Because they all typically die one after the other in short order.
 
#4 ·
When the sensor battery is going it will not light the warning light untill the TPWS realizes it hasn't reported it's status after 20-30 mins then flash for a bit and stay on till you stop or sometimes slow down fast and it might report and the light will turn off and then repeat if it hasn't reported again after so much time.

When it's dead it will do the exact same thing but once the light stays on it will be on until the car is turned off and will not light when started until the no report time triggers it again.

As posted above. One goes others will follow
 
#5 ·
New tires? TPMS does not assess quality of tires. It just works on pressure. If the weather turns cold, pressure can also go down with it. We can't say if you need new tires or not. If pressure goes down every time you check, I'd suspect the air is leaking and have the tires checked for nails or bad valve stems.

TPMS units CAN be checked with a computer tire shops have, without breaking down the tire and it will tell if the monitor battery is weak or dead. Get that done before you start shucking out money. Those units are NOT cheap and installing them requires breaking down the tire- that's work you pay for...about $15 per tire. Some shops may even charge more for programming the TPMS.

Back in 2017 the TPMS in my 2010 Corolla started dying and I had them replaced with Dorman units (not OEM) that cost a little less than OEM. The cheap EZ Sense units they sell at AutoZone couldn't be made to work at all. When I went to Big O tires, they did the computer check free for me. Firestone wanted $29 for the same thing. They just hold a probe near the tire stem and the computer tells the condition of the TPMS unit in the tire. If it turns out you need new TPMS monitors, shop around for the best price. I paid $400 back in 2017, and the shop first tried the EZ Sense units I bought- they wouldn't work so I changed to Dorman. Though they did the job twice for me, they knocked a lot off the what the price should have been. Good luck.
 
#6 ·
If the light flashes when you start the car and then comes on solid, it indicates a problem with the system, typically a bad sensor.
If the light just comes on and stays on, it is detecting low pressure.
The system will trigger a pressure warning under either of two conditions... the pressure falls below the set point, which is typically 28psi, or there is a difference of 10psi or more between any two tires, so one tire at 30 and one tire at 40 will trigger the light.

2014, it's likely a dead battery in a sensor.
 
#9 ·
It went off at 230 this afternoon, but when I drive tonight it came on. Assuming it is cold.

However, last year it was cold and sensor never came on.

$400 for all of them? Is it even worth it to fix or should I look at another car without electronic sensors?
You'll have to fork out or trade it in for a pre 2007 if you want a car without TMPS sensors.
Been mandatory in the United Anti-Socialist/Socialist States of America :whistle:
 
#87 ·
I've been driving since the late 70's and we got by JUST FINE without any tire pressure sensors, ALL we needed was a reliable gauge ( or TWO ) in the glove compartment & checks every week or so. What pisses me off is I bought a 2008 Avalon with the damn things on it, so I also bought them for my four-set Snow Tires ( $ 200+ for the sensors )...LASTED ONLY ONE SEASON !!! Now, I just drive with the stoopid light ON---I ain't shelling out my hard earned dough for something NOT REQUIRED for State Inspection---especially if they do NOT last the supposed 9-10 years like advertised.
 
#20 ·
I haven't had the nerve yet to call the dealer, but my usually much cheaper mechanic quoted me $575 to replace all 4 sensors. I'll take Discount Tire's $300 over that. Call around - there seems to be a lot of variation in price. Tire shops seem to offer better prices.

Discount Tire gave me a better price on the installation/programming cost once I told them that I had bought my tires from them, so do mention that when asking about the price (they ended up coming down to $10/tire).
 
#33 ·
2013-2014 Models
Models of the Toyota Camry that are year 2013 and 2014 and earlier do not have a reset button for the Tire Pressure Warning System. The system works automatically. Inflate the tires to the recommended pressure, then drive the vehicle straight at approximately 25mph or more for about 10 to 30 minutes.

Put your tires back to correct cold inflation pressure and follow the above instructions precisely otherwise you'll simply wind up sooner or later as in your case raise your low pressure threshold.
 
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#42 ·
Exactly, but I've seen in pre-2013 Toyotas where even after you've properly inflated all the tires to the recommended pressure, the TPMS light will persist. It was a simple procedure of pressing and holding the reset button for a few seconds to extinguish the light and it worked. I would not suggest using it to extinguish the light if the tires were truly under-inflated. And if there is a bad sensor, that is a different issue.
 
#43 ·
Who needs TPMS? I drove for 50+ years w/o TPMS. In my 07 Lexus, the TPMS light has been on for 3 years now, and my eyes have been shielded from that light by black electricians tape for same 3 years. .....Here in DE., State does car safety & emissions inspections; They pay no attention to TPMS light, instead, concerned with Brakes, Lights, Wipers, Glass, Signals, Horn, and Emissions. I'll keep the TPMS replacement $$ in my pocket, where it does more good for humanity, well, at least mine.
 
#44 ·
I had an '07 Corolla with no TPMS. The only 9th-gen Corolla with TPMS was the last 2008. I live in Columbus and we don't have e-Check emissions, which is nice, so I can ignore it if it comes on again. I just can't see spending $352 on that to make a light go away (Discount Tire is the most reasonable too!).

The newer cars are nicer but so many electronic things that can break and require $ to fix.
 
#54 ·
…. OR, YOU CAN JUST LET THEM ALL GO AND SIMPLY “L👀K AT YOUR TIRES,
That's the reason TPMS sensors exist. "Looking" is as useless as tits on a bull. And most "citizens" have no clue what a tire pressure label is or what pressure to inflate their tires. How many actually own a tire gauge or even a 12V portable air compressor? You have any idea how many people think the tire's max pressure indicator is what they need to inflate their tires too? And how many pop some change intro a gas station air pump when their tire is almost to the ground and blow it up with no gauge?

Older cars had tiny rims and balloon like tires. Sure it was easy to see it was low. Today most cars have bigger rims and low profile tires which have an extremely harder sidewall than those of past.

Final point. up to at least 1985 you went to any gas station for a fill and they checked your oil levels and even had an air compressor with a gauge all as an added bonus no charge and did it for you. Not some pay pump like today.

So yes, 99% of the population today needs an idiot light for everything. And they have no clue what it means.
 
#53 ·
My guy had a cheaper solution, granted we have both been driving since before TPMS was required or even available. A piece of gaffers tape will cover that annoying (and expensive) light - but you'll need to be responsible for checking your tire pressure every once in awhile. My father did this when putting fuel in the car. It turns out to be a very workable solution - while the car is filling, check the tires for wear and pressure, rather than checking the phone for texts and emails.
 
#55 ·
Also what's so expensive about TPMS sensors unless you're getting screwed by some stealership or shop?

5 to 10 year life. Your tires will be swapped way before or at the same time from rot anyway. Spend less on throwing perfectly good oil and filters out with just a couple longer intervals over that period and you paid for the sensors in savings.

Or stick with older cars if you can't afford to maintain the one you have or want.
 
#56 ·
If the tires are holding air, I agree with the others, time to change the sensors, my ‘06 Sequoia has same issue, the light has been blinking for a few yrs now. My tires are getting close for replacement so I picked up new sensors and will replace them when I get the tires installed, just have to deal with the blinking light a little longer.
 
#57 ·
We had a problem with my wife's new (used) VW Jetta. They couldn't figure out why the sensor light was turning on all the time. The system was fine, the tires were fine when it came to air pressure. Then we discovered that one of the tires was a different size! As odd as it may sound, could that be the problem?
 
#58 ·
Did that tire even have a sensor? Were all sensors checked as working with IDs registered correctly? Was an actual REAL diagnostic done by someone with the proper tools and knowledge?
 
#66 ·
Ever heard of indirect TPWS? It uses the ABS sensors to detect wheel rotations.
I think the first Camry with TPWS (not 100% sure too late and lazy to google) had an indirect system. Not extremely reliable or accurate. assumed pressure was low because it rotated more than the other wheels since the less or more inflated a tire is the more or less it rotates per mile.

Enough edumacating for today. I'm off to bed ;)