Hello all,

Recently purchased a used 2013 LS460L AWD with 65K miles. I put new tires on since one was mismatched. I notice when I drive on the highway for about 30-40 minutes all of the tires on the dash display -- and not the tire pressure and the flat tire warning light also comes on. After a night of sitting in the garage the tire pressures come back again. Could this mean that I need new TPMS sensors as the car is 8 years old? If yes which brand do you recommend? OEM or aftermarket.

PS loving my ls460 one of, if not the best car I have driven to date.

Thanks,
Frank

 

My '11 did likewise a couple of years ago and I decided to wait to replace them (worn out batteries I assume) until I got new tires. I plan on letting Costco do the job, tires and new sensors, which will be soon.

 

I believe that the correct part # for TPMS sensor on the 2013 LS460L is Denso part # 550-0105. I can't tell from the information that you provided what is the most likely cause of your problem. The TPMS is designed to provide a failure warning exactly 20 minutes after the ignition is turned on if one or more of the sensors in not reporting. So the possible causes are many and range from one or more defective sensors, to one or more of the sensors not registered in the car's electronics. Of course there are other possibilities too. You should take your car to a tire dealer like Costco, Walmart, Discount Tire etc and ask them to tell you what is wrong. It is not a DIY project as special electronic tools are required. Of course you can buy the electronic tools but for most taking it to a tire dealer is the best place to start.

 

I will do that first instead of buying new sensors. Thanks for your help ...

 

Certainly consider Discount Tire. They are super friendly and helpful. They fixed my son's flat for free even though he didn't buy his tires there. Since then though he now uses them exclusively.