I recently broke my old tire valve (see here: https://www.clublexus.com/forums/sho...d.php?t=260247) and had to purchase and install a new TPMS sensor. After inflating all 4 tires to the correct PSI, the TPMS light is on and the read-out says LOW PRESSURE. What needs to be done? Do I need to take it to the dealer and have them register the new sensor's serial number into the system?

 

And I already read the manual and it says that when a new sensor is installed, the system needs to be initialized with the satelite switch display set to Tire Initial and then holding the ON/OFF button for three seconds. I did this but the light is still on.

 

There are two settings for the tire pressure. One is MAIN and the other is 2nd (I think). Make sure your display is on Main.

 

Where did you buy the sensor if you don't mind me asking? I'm currently looking for a second set since I'm getting new wheels.

 

http://lexus-parts.com/partlist.asp?...19&ModelID=151
scroll all the way down

 

yes, the dealer has to enter the new sensor into the computer. differ serial number than the one that broke and the car isn't recognizing it. have them initialize it and you'll be fine.

 

Okay, today I had the new sensor entered into the ECU by my dealer, and all was good, (no warnings or anything). As I'm going home from the dealer, about 5 miles into my trip, the tire light goes on again, the low tire pressure light blinks, and I see a "Check System" with a low tire pressure logo on top of it in the blue display area. Now what?

 

Back to the dealer. This should not happen if they have done their task properly.

 

^^+1......