As the weather gets chilly, the air pressure in the tire drops and sets the light off. More often than not, we replace a sensor or two and the car is off and running.Īt the onset of winter our phone always starts ringing like crazy with people who have this light on. The repair for this can be a couple of hundred dollars, if a single sensor is to blame, up to well over a thousand if all four sensors and/or the module needs replacement. If the light is blinking, there aren't a lot of choices, it needs to go to a shop to be diagnosed. This tool is also needed when rebooting the system, replacing the sensor and often, turning the light off. Diagnosing the blinking light isn't rocket science, but it does take a special tool to both locate the source of the problem and test. When it blinks, you have a malfunction in the system. When the light is on solid, you have a low tire somewhere. There are two light states: blinking and solid. Here is the thing to understand about TPMS (Tire Pressure Monitoring System) lights. This has been mentioned in other articles, so I won't bore you with any more reprimands. Now that $300 repair doesn't sound so bad. If you have an all-wheel drive vehicle, go ahead and budget $800 for four new tires. If you drive on a tire that's flat, even for a short time, you'll inevitably ruin it. But for so many of the more economically priced cars, you got the horseshoe.Ī number of customers come in with this on and say, "Don't sweat looking at that, it's been on forever" (!) I wouldn't want this thing malfunctioning when I'm somewhere between here and there. Some manufacturers now include more helpful notes like "low tire" or diagrams of a tire on the vehicle. The amount of confusion this creates is stupefying. Don't ask me why they decided this indicator should look like you just got three points in a game of horseshoes rather than just a picture of, I don't know, A TIRE! But, they did. Some time ago, carmakers and the government concluded that all new cars coming off the line should be equipped with low tire pressure indicators on the dash.
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