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Low tire light

Old 10-10-2018, 08:36 AM
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Dockroger
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Default Low tire light

1995 ZR1
Low tire light is on
I checked the pressures and they are all up at 30 lbs
is there a reset?
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Old 10-10-2018, 05:06 PM
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phrogs
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Have you been driving it? or has it been sitting?
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Old 10-10-2018, 09:24 PM
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Dockroger
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It only gets a couple of miles per year
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Old 10-11-2018, 01:47 PM
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DRM500RUBYZR-1
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Simply filling the tire with air may not extinguish the light.
C-4 TPMS sensors have a battery within that requires the wheels to run for a bit to generate enough electricity to transmit the pass/ fail message to the monitor.
Typically if one or more sensors is not transmitting you get a Service LTPWS warning light.
I suggest that you lower the tires one by one to 20 or so, then take each up to 35 temporarily.
Drive the car for at least 2-3 miles and make sure that the LTPWS warning light goes out.
If it does, than all four sensors are transmitting.
If you then get a Low / Flat Tire warning, either the tire is low or the sensor is transmitting to the monitor, but sending an errant message.
If that is the case, again lower tire pressure ONE AT A TIME, and TEMPORARILY raise one at a time to 40 and drive again for 2-3 miles and see if the light goes out.
If you do all four tires this way and cannot extinguish the Low/Flat tire Light you have all four sensors transmitting, but one or more cannot correctly read the pressure.
I have at times, managed to extinguish the light while filling the tire if the sensor has enough energy to transmit a signal to the monitoring system.
Remember to lower your tire pressures to normal once you have concluded the above.
I have also on occasion had cars that had to run tires a few pounds higher to keep the light from turning on.
Let us know how you make out, and confirm which of the two warning lights you are seeing.

Marty
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Dockroger (10-14-2018)
Old 10-14-2018, 08:29 PM
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Thanks for the extensive reply
Unfortunately it’s snowing here and the car has been put away for the winter
I will try your fix in the spring
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