A warning beep is helpful, but only if the sensor providing the information is accurate. That is not always the case. Here's how to keep those systems running at their peak.

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 ...

The ABS sensor on your Toyota Corolla reads if the wheels are spinning and in case they block during braking, it will send a signal to the ABS’s computer to reduce the braking force on the wheel to ...

The check engine light means one of your car’s systems is malfunctioning. If it’s flashing, pull over as soon as you safely can. If it’s steady, follow these simple steps. Many, or all, of the ...