From the manual: (You can go to Toyota Owner's website and download the manual if you don't have one).
Initializing the tire pressure warning system

■ The tire pressure warning system must be initialized in the fol-
lowing circumstances:

● When the tire inflation pressure is changed such as when changing traveling speed or load weight.
● When the tire inflation pressure is changed such as when the tire size is changed.
● When rotating the tires.

When the tire pressure warning system is initialized, the current tire inflation pressure is set as the benchmark pressure.

How to initialize the tire pressure warning system.
Park the vehicle in a safe place and turn the engine switch off. Initialization cannot be performed while the vehicle is moving. Adjust the tire inflation pressure to the specified cold tire inflation
pressure level.

Make sure to adjust the tire pressure to the specified cold tire inflation pressure level. The tire pressure warning system will operate based on this pressure level.

Vehicles without a smart key system:
Turn the engine switch to the “ON” position.

Vehicles with a smart key system:
Turn the engine switch to IGNITION ON mode.

Press and hold the tire pressure warning reset switch until the tire pressure warning light blinks slowly 3 times. (found in the glove box under the lock on the far left)

“- -” will be displayed for inflation pressure of each tire on the multi-information display while the tire pressure warning system determines the position of each tire.

When position of each tire is determined, the inflation pressure of each tire will be displayed on the multi-information display.

Drive the vehicle at approximately 25 mph (40 km/h) or more for approximately 10 minutes. When initialization is complete, the inflation pressure of each initialization will take longer than approximately 10 minutes if the vehicle is stopped for a long time, such as at traffic signals.

 

Thx kranat007. We do have the manual. The car didn’t come with 1 but I ordered 1 from eBay for $15. I received it just ystrdy
I will follow the instructions to reset the TPMS.

you mentioned smart key. I don’t think we have it but how does it differ from a regular key fob ? The car came with 1 key n we need to have another cut n programmed. A local locksmith will do it for $135 n Some locksmiths charge more.
We love this car. It’s the most advanced car we’ve ever had. It doesn’t have any extra options n we like it just the way it is. Have long have you had yours n what do u like the most about it?

 

Smart key is just the fob with no cut key on it. If you have to stick a key in the ignition then you have a non-smart key system so anytime it mentions the key follow those directions.

This too is an upgrade feature-wise for me. Prior to this I came from a '06 Vue V6; my wife had a '03 Rav4 prior to her getting a '17 Rav4. I've had my Camry for a year. Get very good gas mileage, takes very little maintenance (I do most of my own), spacious enough for my family and comfortable on short and long trips (remember I came from a Saturn). Next go-round I'll probably get a Camry with a V6.

 

@CamryQueen98
Be certain you are comparing tire pressures under the same circumstances.
If you check the pressures cold and then go driving they will climb.

 

@CamryQueen98
Be certain you are comparing tire pressures under the same circumstances.
If you check the pressures cold and then go driving they will climb.

Smart key is just the fob with no cut key on it. If you have to stick a key in the ignition then you have a non-smart key system so anytime it mentions the key follow those directions.

This too is an upgrade feature-wise for me. Prior to this I came from a '06 Vue V6; my wife had a '03 Rav4 prior to her getting a '17 Rav4. I've had my Camry for a year. Get very good gas mileage, takes very little maintenance (I do most of my own), spacious enough for my family and comfortable on short and long trips (remember I came from a Saturn). Next go-round I'll probably get a Camry with a V6.

I have a Honda odyssey v6 n its costly to run gas wise. Theres also a 2011 Camry Se with 68k mi, 2010 corolla le with 135k mi n a 2004 Camry le with 230k in the family. The 2004 will be sold shortly. The new 2017 is replacing this 2004 so it’s a huge upgrade. So I know the thrill you experienced going from a Saturn to your 17 Camry.

Does your camry have any add-ons like blind spot monitor, moonroof, alarm, etc. Our 17 is predawn grey, what color is yours? We just love the suede/leather (sweather, lol) combo seats with the red piping. How many miles does yours have?

 

Your tire gauge could have worse accuracy than the TPMS?

I trust the TPMS pressure reading over the various analog and digital gauges I have used.

TPMS "Reset" just establishes the new baseline based on the PSI in the tires at time of reset.
If you reset TPMS w/ tires reading 40PSI, this becomes the new baseline which the TPMS calculates the trigger for low PSI. I believe Toyota has their TPMS trigger set for 25%, meaning:
baseline PSI - (minus) 25% of baseline = trigger threshold for low tire PSI light.
40PSI - 10PSI <= 30PSI is when the low PSI light displays.

Rotating tires doesn't need TPMS rest, as long as you have NOT deviated from the previous reset PSI.
Even if tires have a front/rear PSI difference, as long as you adjust PSI to same previous "Rest" PSI threshold, no need to reset.

However, given how easy and fast it is to "reset" PSI, why not?

 

thx for the info. We got the car just 10 days ago so idk what baseline the TPMS was set too. We’ll reset it tires cold in the next day or so.

 

If you trust the TPMS to give an accurate reading and do not reset after rotation, then does not the computer think that the low tire is in the position it last knew rather than its current position? For example: rotate tires but do not reset. The right front is now right rear and vise versa...the right rear sustains a leak and is low on pressure. Does the computer recognize its location at the right rear or the right front? Does a reset allow the computer to learn the location of each TPMS? Or is that done after the car is started again and it reads the pressure?

This is my first vehicle with TPMS and I don't like it. I get the idea but its another thing that government intervention is costing consumers more money; IMHO. I've always checked my pressures every few weeks and would rather pay a couple bucks for a new valve stem rather than whatever they cost now.

 

This is my first vehicle with TPMS and I don't like it. I get the idea but its another thing that government intervention is costing consumers more money; IMHO. I've always checked my pressures every few weeks and would rather pay a couple bucks for a new valve stem rather than whatever they cost now.

TPMS requirement is the result of the Ford Explorer-Firestone/Bridgestone tire debacle.

Part of Government intrusion is also the mandate of vehicles being made safer. So be careful what you wish for; and that's just for autos.

You might also enjoy drinking clean water courtesy of the Clean Water Act.

I am in the minority and like TPMS. It has saved me twice while driving. Once on the highway and once city streets. The warning light came on, quickly pull over to onvestigate. Both times I could hear air leaking! Change the tire/wheel for the spare and go on my way, albeit it slower due to temp spare speed limitations.

W/O TPMS, I would not have realized the tire was leaking until too late, and the tire sidewall would be destroyed by driving on a flat tire! W/ TPMS, both times I was able to safely and quickly pull over, and the hole was repairable. No amount of checking the PSI manually would have warned me of the leaking tire.

The replacement TPMS units are a little pricey for what they do. BUT service life seems to be 7-10 years; some will get more than 10yrs.

Creative DIYers have figured out a way to replace the Li-Ion batt in TPMS, saving a lot of money. Many YT videos available to see if you want to undertake this DIY repair.

 

I own 6-7 tire pressure gauges, but only use 1, it happened to come with an AC Delco tool set I got about 20 years ago. Looks just like the Slime versions you see with a dial gauge at Wal Mart. I can take a pressure reading and it will stay there until I release it even weeks later. I's also has read the same as the tpms sensors of our last several cars.

 

Manual gauges n TPMS should match in a perfect world. You nailed it ! ( figuratively of course, don’t want an actual nail in your tires, lol)

 

Under Pressure: The Story Of The Infamous Ford-Firestone Controversy

 

Under Pressure: The Story Of The Infamous Ford-Firestone Controversy

Thx!

 

Old mechanic here, trust the TPMS, not the $1.19 gage. The only really accurate one I has was by Accura, $$$. it was a commercial tire inflator with a TPMS sensor cell. My $4.19 digital was +/- a pound.