2008 Lexus ES 350 low tire pressure warning light blinking

1) go to a gas station with an air pump. Unless u have an inflator/compressor at home with the tireattachment

2) lower all 5 air pressures including the spare in the trunk to maybe about 28 PSI

3) now reset the TPMS (on the 07 there is a button to "calibrate" the TPMS and it is located under the dash. I presume it is the same on the 08.)

4) now bring the pressue back up to 30/32 or whatever it says on the door area


If this doesn't work, it is possible u have a defective TPMS
but my bet right now would be that someone "calibrated" the TPMS to the current tire pressure so the light is constantly on. It happened to me before when my daughter was messing around and hit that button.

Sorry you need the dealer on this if the tire pressures are correct.

check all tire pressure including spare it should go off

Are all tires at correct pressure? Some of the cars also use one in the spare tire. if the spare has a tire valve like the other 4 tires it has a sensor.

Then thats what you need to do if you want the light off. Or you can start over and have a independant shop diagnose it, You might save a couple bucks this way but you'l loose because now you wasted twice the time. Or you can buy the part and install it yourself

The tire pressure monitor detects any changes in the tire inflation pressure. Therefore, it must initialize and store it in its memory if the tires or wheels have been replaced, re-inflated or the tires have been rotated. You should be able to re-initialize the system by following these steps:

1. check and make sure that your tires are inflated to the correct pressure

2. turn the ignition switch to the ON position. If the low tire pressure warning light comes on, push and hold the tire pressure warning reset switch (think the switch is in the glovebox, but not sure) until the warning light turns off and then release the switch.

3. now press and hold the tire pressure warning reset switch until the low tire pressure warning light blinks three times.

4. initialization is *not* completed until driving at the vehicle speed of 19 mph or over for more than one hour. the tire pressure monitoring starts when initialization is completed.

yellowish orange colored?? it is the low tire pressure warning light....
check the tire pressure and fill the tires to 30 psi and reset the light under the steering wheel... it is labeled. Also beware that the spare tire may also need air

Veve713:
You probably didn't need new tires unless you had some miles on it. Remember that the spare tire also has a pressure monitor as well. It most likely is causing the low tire pressure light on the dash and only needs to be inflated back to what ever your other tires are set to. I had the same problem on my RX and took it back to the dealership where they told me since the spare is exposed to the same elements (it's under the back of the RX - you have to use the tire iron to let the spare down), it will inevidably lose air.

Good luck.

MDGolfHacker

I brought my RX350 to the dealer for this problem before. They told me to inflate my tires to 36psi for winter time although the recommended pressure is 30 psi

the tire in the trunk has a sensor also check the spare tire pressure , only the dealer will tell you this after you are charged to mount and balance the spare in the trunk..