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Tire Pressure Warning System Display

51K views 45 replies 24 participants last post by  molson.david  
#1 ·
The Tire Pressure Warning System display on my XLE hybrid shows icons for four tires in a horizontal row with the pressure readings beneath each icon. The icons are not arranged in the logical layout of two by two. There is no indication to which tire an icon corresponds. In other words, if the display indicates low pressure beneath one of the four icons in the horizontal row, you do not know to which tire the icon corresponds. Do you know?
 
#2 ·
Yup, that's the way they made it.

You would have to check all tires to see which one is deflated unless you can see it visually.


Sent from my Autoguide iPhone app
 
#4 ·
You can find out as follows.

First write down the tire pressure readings and positions, start at one tire, add one or two PSI to it, then look a the display to see which position on the display went up. Repeat the same for the same the remaining tire, one at a time .

Write down the tire position to display position mapping, which will be good until the tires get rotated.
 
#6 ·
The display shows 4 tires icons in a row, with a pressure reading under each icon, you just don't know which of the 4 tire readings corresponds to which physical tire until you map it out.

Camry only has one TPMS receiver to receive the 4 transmitted PSIs - a cost cutting measure, I imagine.

It would be nice if they gave us the ability to manually map the icon to a tire position vs a random pattern currently displayed like:

PF DR DF PR
 
#10 ·
Tpms sensors

Looks like whoever figured out that the 4 tire pressure numbers represented, from left to right - LF RF, LR, RR, was correct.

The warning light came on today and when I checked the tire pressures on the screen, the second number was 25 PSI. I went to a local gas station and checked the tires. The right rear was below 30 PSI.

The car hit 5000 miles when we were in Weston Florida, so I brought it into Maroone Toyota for service. They rotated the tires as part of the 5000 mile service routine. That means that the RR tire had been the RF before the service call.

After I put in air (to all the tires) the TPMS monitor cleared the fault within 1 minute.



I also learned that Maroone Toyota techs neglected to replace the valve stem caps on the right side of the car. :facepalm:
 
#12 ·
#15 ·
If you install 2012 Camry compatible TPMS sensors, any wheel/tire should work.

The numbers from the sensors have to be recorded (before the sensors are installed into the wheels) and entered into the car by the Toyota dealer special equipment (forgot the name of it).
 
#14 · (Edited)
Some car brands do show which tire to which icon. That won't be accurate if you have your tires rotated like ever 5000 miles. If the tire store then resets your TPMS senders. For that service you may be out a extra $20/$25 ever 5000 miles. This may be why toyota decided to show the unlabeled 4 tire icons.

It would be nice if it would show the 2 front and 2 rear tires. Then have a button for the car owner to press which would switch the tire navigation-icons from front to rear after the rotation was completed.

Recent Consumer Reports magazine shows in their test that the accutire MS-4021B is one of most accurate digital tire gauges. The reviews, many say this gauge has went for 5 years on it's original battery and still works great. I sure like mine for $9.95 and should mention it has a triple digit readout. Search amazon.com/ to see it's picture and you can read the many reviews.
 
#18 · (Edited)
Tire Pressure Monitoring System - What A Waste!!

Just bought a 2012 Camry LE 3 days ago. Nice car, but it rode like an old wagon. The TPMS showed 40-42 lbs. in each tire. Of course, you can't figure out which tire is depicted in the display. Took it to a Toyota dealer. Their tire gauge showed 48 lbs. No wonder it rode rough!! The dealer set the pressure to 38 lbs. - the door sticker calls for 35 lbs., but they said 38 lbs. was a good in-between pressure. Now the TPMS shows 33 lbs.

I sat in the car and watched the TPMS as they changed the air pressure. The 4 icons displayed side-by-side are: left to right; LF, RF, LR, RR.

I have no idea how much air the tires actually have in them, but it rides better.

Again, I say what a waste!!

Neal
 
#19 · (Edited)
Just bought a 2012 Camry LE 3 days ago. Nice car, but it rode like an old wagon. The TPMS showed 40-42 lbs. in each tire. Of course, you can't figure out which tire is depicted in the display. Took it to a Toyota dealer. Their tire gauge showed 48 lbs. No wonder it rode rough!! The dealer set the pressure to 38 lbs. - the door sticker calls for 35 lbs., but they said 38 lbs. was a good in-between pressure. Now the TPMS shows 33 lbs.

I sat in the car and watched the TPMS as they changed the air pressure. The 4 icons displayed side-by-side are: left to right; LF, RF, LR, RR.

I have no idea how much air the tires actually have in them, but it rides better.

Again, I say what a waste!!

Neal

You won't think its a waste once you pick up a screw or nail - I already got one and TPMS reading gave me a hint that something was wrong - it was a slow leak.

BTW, as much as tires cost, do yourself a favor and get a digital tire pressure gauge. They go on sale at Sears often for $10.
 
#29 ·
Here's what happened to me: Bought the car with supposedly 37K on it (advertised that way).
Tire went flat at dealership, so they repaired it. TPMS light came on 2 miles later. Tried four resets. Waaaaa. So I turned around.

Went back since the car was under warranty. Seems sensor got screwed up when they remounted tire.

They replaced it under the 36K bumper to bumper.
 
#31 ·
In the 2013 TCH XLEs with nav, the TPMS only shows on the display with the top model XLE that comes with the premium nav correct? I have the TCH XLE with nav and I dont think I have the feature.

EDIT: Yep, they took it out of the 2013's. How stupid. LINK
You gotta be kiddin!! I just have an LE with no NAV, steel wheels, and it's there. That's some cheap crap!!

Must be so they don't have to put sensors in the wheels. Does it even show when you press CAR? or, just the mileage graph?
 
#32 ·
just because the tire pressure doesn't show on the display doesn't mean it doesn't have TPMS. My Sequoia and my wife's ES350 don't have the display but we still have TPMS. The only time you will know you have is when you are low on air.

I have it and only check about once a month.
 
#33 ·
If your going to show me all 4 tire pressures, you better have a reference to their physical location on the car. Otherwise, just show me the lowest pressure and I'll go find which one it is. Now, if you have multiple tires that are low (very unlikely) you're SOL with that approach.
 
#37 ·
I like the system a lot. When on the road for long stretches or days, it's a great way to do a quick dashboard check of the tires to make sure all is ok. If you run over something questionable, it helps ensure the tires are intact.

I only wish they did this properly by taking the final step in identifying the corresponding tires to the display.
 
#44 ·
I think Toyota removed the ability to see tire pressures on 2013's to simplify servicing. They were in the process of doing so on 2012's. That is why no locations were given on the display. Vehicles that display tire pressure and location need to be reprogrammed every time the tires are rotated. If this is not done and the customer gets a low tire warning the display will identify the wrong tire as being low. Example: Customers comes in complaining that the TPMS system was warning that the left front tire is low but they added air and it did not fix the problem. I look at the car and the left front tire has 80 psi in it. Yup no gauge, just add till it looks good, happens all the time BTW. Checking the other tires I find the left rear tire at 20 psi. This tells me someone rotated the tires and did not reprogram the system.

Where I work we can't afford the equipment to reprogram TPMS systems because we are only a two man shop. Even if we could swing the price doing so would never pay for it self. How much can you charge for a tire rotation? The time it would take to do the rotation and reprogram would be somewhere between 1/2 hour and 1 hour depending on the vehicle and the tech's familiarity with the given vehicle. This means we would need to charge $47.50 minimum just to cover time spent if it only took 1/2 hour let alone repay equipment costs.

So what Toyota did was a down and dirty way to fix a big issue because it will force customers to check all tires when the TPMS light comes on while allowing easy and quick servicing.

Bill
 
#45 ·
DoznI4SE is absolutely spot on with his explanations. I keep a small card in glove box with a horizontal row of 4 circle and I fill in the tire positions left to right and the date.
When I rotate tires every 5k, I make a new row and since I rotate tires myself I know where they were and where they are now, so I fill in the circles an viola I'm good to go. As I "monitor" the tire pressure readouts frequently, I just refer to my "card" to know which is not to spec. Works like a charm. BTW, I find the display readout to be "deadnuts" to my digital air gauge.
 
#46 ·
just got a 2014 LE- with no PSI read out :(... manager said people were complaining about overly complicated system and inability to see pressure instantly and all the time like on some domestic cars...
I like my 12 TPMS, see nothing complicate in pushing two buttons and "card in the glovebox" gives me exact location of each tire.