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Originally Posted by TheLastBoyScout
Most cars on the road don't have a "Low Tire Pressure" Dummy light.
Name the makes and models that have them.... or give me just one example.
Chances are it will be either a very late model car or it will be a luxury car.
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I bought a new car in '04 for something like $25K and it doesn't have anything like that. Hell, my dad has a newer model Mercedes, and I don't think it has a low tire pressure indicator (I could be wrong - I've driven it before, but it isn't as if it's my car)
And, my understanding is that those systems, when implemented, are designed more to alert people when the pressure is dangerously, potentially accident-causingly, low.
This is kind of interesting:
Tire Tech Information - Tire Pressure Monitoring Systems
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While the Tire Rack applauds the emphasis on maintaining appropriate tire pressure and requiring a system that will warn the driver if low pressure is detected, we are concerned about the percentage of underinflation that the law permits before warning the driver. The driver of a passenger car that calls for 35 psi may not be warned about tire pressure loss until it drops to 26 psi depending on the type of monitoring system used. Under the same circumstances, a driver of a light truck that calls for 80 psi won't be warned until just 60 psi remains. In both of these cases, significant load capacity has been sacrificed before the driver is warned.
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