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
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.
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