Seasons change, and shifting temperatures are in the forecast. Even when it doesn’t feel like much, the expansion of hot air or shrinkage of cold air often impacts tire pressures, which is why you’re ...

Question: My tire pressure monitor light is constantly on for one or more of the original tires on my 2009 Subaru Impreza with 40,000 miles. We love the car and plan on keeping it as long as possible.

Do tire pressure sensors use individual batteries (that may last only 10 years) rather than the car’s electrical system? Could such a battery replacement cost about $85 for each wheel? What about ...

Tire pressure monitoring sensors (TPMS) work by constantly measuring the air pressure within all four of your tires, then relaying that data to your car's computer. If the system is unable to measure ...

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Future systems will employ SAW (surface-acoustic-wave) sensors to eliminate batteries. Direct-digital downconversion enables operation at region-independent 2.45 GHz. In any civilized nation today, ...

Treat TPMS service like a lesson plan. Educate customers, diagnose issues, and replace sensors before problems start.