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Sensors

TPMS Sensor (Tire Pressure Monitoring)

Monitors tire air pressure and wirelessly transmits data to the vehicle's computer. Triggers a dashboard warning light when tire pressure drops 25% below the recommended pressure.

$50 – $150 per sensor

Total Cost

5 – 10 years (battery life limited)

Replace Interval

Professional Only

DIY Difficulty

Schedule Soon

If It Fails

Overview

TPMS sensors monitor tire pressure and alert you when a tire is significantly under-inflated. Required by law on all vehicles since 2008, these battery-powered sensors are mounted inside each tire.

Parts Cost

$30 – $100 per sensor

Labor Cost

$20 – $50 per sensor (usually done during tire service)

Failure Symptoms

TPMS warning light on dashboard (flashing = sensor fault)
Low
Inaccurate tire pressure readings on dashboard
Low
No pressure reading for one tire
Low

Warning Signs to Watch

  • TPMS light stays on after inflating tires
  • TPMS light flashes for 60-90 seconds then stays solid
  • Dashboard no longer shows individual tire pressures

Common Causes of Failure

  • 1Battery depletion (5-10 year lifespan)
  • 2Corrosion of the sensor stem
  • 3Physical damage during tire mounting
  • 4Chemical damage from improper tire sealant

Prevention Tips

  • Replace TPMS sensors when getting new tires (convenient timing)
  • Use TPMS-safe tire sealant only
  • Avoid breaking the sensor during tire changes — inform the tire tech

When to Replace

Replace when the sensor battery dies (flashing TPMS light), when corroded, or conveniently when getting new tires.

TPMS Sensor (Tire Pressure Monitoring) by Make

Many Japanese and Korean cars use affordable direct TPMS sensors ($30-$50 each). Replace all 4 when getting new tires.

Some models use indirect TPMS (no sensors — uses wheel speed data). These don't need sensor replacement but do need recalibration after tire service.

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Frequently Asked Questions

Need TPMS Sensor (Tire Pressure Monitoring) Replacement?

Get a free quote from a local mechanic. Average cost: $50 – $150 per sensor.

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