11/10/2025
🚨 What's with the TPMS Light? Cold Weather & Your Tires! ❄️
If your Tire Pressure Monitoring System (TPMS) light just flicked on, don't panic! This is incredibly common this time of year, and here's why you're seeing it and what you should do to protect your safety and your insurance rates.
🧐 What is a TPMS Monitor?
The TPMS is a vital onboard safety system in most modern vehicles. It uses sensors (usually located inside each tire) to constantly monitor the air pressure.
The Goal: To alert you when your tires are significantly underinflated (usually 25% below the recommended PSI), which can create unsafe driving conditions.
The Light: It looks like a horseshoe with an exclamation point (!) and is your cue to check your tire pressure ASAP.
🥶 Why is My TPMS Light On Now? (Hint: It's the Temperature!)
It's all down to simple physics! As the weather turns cold, the air inside your tires contracts (takes up less space), which causes the pressure to drop.
The Rule of Thumb: For every 10°F drop in outside temperature, your tires can lose about 1 to 2 PSI (Pounds per Square Inch) of pressure.
The Trigger: A sudden cold snap can easily drop your tire pressure below your vehicle's safe threshold, causing the TPMS light to illuminate. It’s often not a leak, just the air condensing due to the cold!
🛡️ Your Insurance Agency Safety Tip
Driving on underinflated tires is a serious safety risk that increases your chance of an accident. From an insurance standpoint, proper tire maintenance helps you avoid costly claims by preventing:
Reduced Traction: Low pressure affects your grip, especially on wet or icy roads, increasing the risk of skidding.
Compromised Handling: Steering and braking response are negatively impacted.
Tire Failure: Underinflated tires can overheat at highway speeds, potentially leading to a blowout.
✅ What to Do Right Now:
Check Pressure: Locate the correct PSI for your tires on the sticker inside your driver's side door jamb (not the number on the tire sidewall).
Add Air: Safely add air to all four tires to match the recommended "cold" pressure. The light should turn off shortly after you start driving again.
If the Light Flashes: A flashing TPMS light usually indicates a system malfunction (like a dead sensor battery). In this case, visit your trusted mechanic.
A few minutes spent on tire maintenance can prevent an accident and keep your winter driving safe!
