Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Tire Pressure Monitor Description and Operation
The Tire Pressure Monitoring System (TPMS) is to monitor the tire inflation pressure and gives the information of tire inflation pressure to the driver by showing the warning light on the instrument panel. The Tire Pressure Monitoring System (TPMS) consists of four wheel-mounted tire pressure sensor unit (TPMS transmitter), a receiver and a warning light. The wheel-mounted sensor unit is an assembly consisting of the pressure sensor, related electronics, and power source. The tire valve stem is integrated into the assembly. Refer to Tire Pressure Monitoring System Component Views .
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.