tire pressure
Re: tire pressure
I agree with goalie. Keep your tires at the recommend pressure because the pressure fluctuates as you drive. The pressure in your tires increases as they warm up or as drive to a lower elevation. I have had my TPM light come on when it is cold and then go off when the tire warms up, I also had it come on a drive to Tahoe. I don't recommend relying on the TPM, check your tire pressure regularly.
Re: tire pressure
TPM went on the other day and when I checked the pressure it was 30 PSI all around. My gauge is very accurate. As soon as I filled it to the 32/33 PSI the light was off. And its funny because I had noticed a slight difference in the handling for a week or so also. Didn't notice the PSM light during that week because at my height the light is obstructed by the steering wheel so I never thought the inflation was off. I assumed the handling situation was due to the high winds NY was experiencing at the time. Filled the tires to the recommended pressure and it seems fine again.
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Re: tire pressure
Originally Posted by MMZ_TimeLord
Remember that the TPM also will come on when a single tire is 10% (I think) different from the rest of the tires. This is an indicator to the system that you have one tire with a slow leak and to check it before it becomes a violent blowout on the freeway.
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DESCRIPTION
This vehicle has a tire pressure monitoring (TPM) system. It is there to alert the driver when air pressure in any of the vehicle’s four tires falls below a predetermined threshold. It alerts the driver with a lamp in the instrument cluster.
The tire pressure monitoring system utilizes transmitters that are located in the valve stem of each tire to communicate the tire pressure condition to the module. If a tire has low air pressure, an indicator light on the instrument cluster is illuminated. The vehicle operator must check the tire pressure of each tire in order to determine which tire has a low pressure condition.
The garage door opener/tire pressure monitoring (TPM) module has a microprocessor controller that can monitor the transmissions from the sensor/transmitters anytime the ignition is on. It can store the last 32 transmissions. There are two important values included in these transmissions. They are:
² Why the transmission was sent,
² Low Tire Pressure
The module compares the transmitted tire pressure from the sensor to the two pressure thresholds (low pressure or critical pressure). If the module determines that the tire pressure transmitted is below the low or critical pressure thresholds, it will signal for the “Low Tire” pressure warning lamp to come on.
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