[vh5150]

2013 Tundra, after driving for a half hour or so the warning light for low tire pressure comes on, it comes on only after driving for awhile. It doesn't come on when I start a drive. Not sure why? Tire pressure was okay

 

[MT Madman]

My guess is a battery is getting weak on a sender unit but your manual should have initialization procedures which calibrates the system. I do the calibration on our vehicles each time after we get a new set of tires.

 

[vh5150]

Thank you for the reply, I reset the TPMS and that seemed to do the trick.

 

[Tundrana]

Yes, the battery is usually the culprit.

 

[restosud]

7 years old sensors. Most start to go about that time or a little more.

 

[Scott E]

also, check the pressure in the spare. Most people forget that there is a sensor in there, too.

 

[Chad D.]

What pressure do you run? Over 50# will light it up and tell you it is malfunctioning.


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[Chad D.]

What pressure do you run? Over 50# will light it up and tell you it is malfunctioning. You’ll build pressure as the tires heat up, so this could happen if you like to run high 40s.


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