TPMS Light On? Here's What You Need to Know
Understanding your Tire Pressure Monitoring System and what to do when that warning light appears on your dashboard.
David Thompson
TPMS Specialist
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Dashboard showing TPMS warning light illuminated
Alt text: "TPMS tire pressure warning light dashboard Dallas Fort Worth"
Safety Alert
The TPMS light is one of the most important safety warnings in your vehicle. Proper tire pressure is crucial for safe driving, especially on Dallas Fort Worth highways.
The TPMS (Tire Pressure Monitoring System) light is one of the most important warning indicators on your dashboard, yet many drivers don't fully understand what it means or what to do when it illuminates. In Dallas Fort Worth, where we experience significant temperature fluctuations that affect tire pressure, understanding your TPMS is crucial for safe driving.
This comprehensive guide will help you understand what causes the TPMS light to come on, what immediate actions to take, and when you need professional service.
What Is TPMS and How Does It Work?
TPMS is a safety system required on all vehicles manufactured after 2007. It continuously monitors the air pressure in your tires and alerts you when one or more tires are significantly underinflated.
Uses pressure sensors inside each wheel that transmit real-time pressure data to your dashboard.
TPMS sensor inside tire/wheel
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Uses wheel speed sensors to detect changes in tire pressure by monitoring wheel rotation speed.
ABS wheel speed sensor
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Common Reasons Why Your TPMS Light Comes On
Temperature Changes
The most common cause in Dallas Fort Worth! For every 10°F drop in temperature, tire pressure decreases by about 1 PSI. A sudden cold front can trigger your TPMS light.
Tire pressure gauge showing low pressure in cold weather
Alt text: "Cold weather low tire pressure Dallas TPMS service"
What to do: Check and adjust tire pressure to manufacturer specifications when temperature changes significantly.
Slow Leak or Puncture
A nail, screw, or other road debris can cause a slow leak that gradually reduces tire pressure until the TPMS threshold is reached.
Nail in tire causing slow leak
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What to do: Inspect tires visually and have any suspected punctures repaired immediately.
Faulty TPMS Sensor
TPMS sensors have internal batteries that typically last 5-10 years. When the battery dies, the sensor stops communicating with your vehicle's computer.
TPMS sensor with dead battery being replaced
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What to do: Professional diagnosis and sensor replacement required.
Immediate Steps When Your TPMS Light Comes On
Follow These Steps:
- Don't Panic: The light indicates low pressure, not necessarily a dangerous situation
- Reduce Speed: Drive more cautiously until you can check tire pressure
- Find a Safe Location: Pull over safely to inspect your tires when possible
- Visual Inspection: Look for obvious damage, objects, or severely deflated tires
- Check Tire Pressure: Use a reliable tire gauge to check all four tires
- Add Air if Needed: Inflate to manufacturer specifications found on the door jamb sticker
Professional TPMS Service in Dallas Fort Worth
Our mobile TPMS service includes sensor replacement, programming, and system reset. We come to you with specialized equipment to diagnose and fix TPMS issues on-site.
When to Call for Professional Help
Contact our mobile TPMS specialists immediately if:
- The light stays on after inflating tires to proper pressure
- The light blinks for 60-90 seconds then stays solid (sensor malfunction)
- You can't locate the source of pressure loss
- Multiple sensors seem to be failing
- You need sensors replaced or reprogrammed after tire service
Don't ignore your TPMS light. Proper tire pressure is crucial for safety, fuel economy, and tire life. In Dallas Fort Worth's varying climate conditions, your TPMS is working hard to keep you safe. Trust our mobile specialists to keep your system functioning properly.