rwanttaja wrote:TPMS Light: Common problem. Hopefully Nissan will eventually fix the root cause.
It occurred to me that Jody could probably use a bit more information on this. The information is here on NICOclub, but it would take a little digging for Jody to find it. (Hey, can we put this in a FAQ or something?)
There are two instances where the TPMS light comes on. The first is if the system detects that a tire has significantly low pressure. In this instance, the light should come on steadily. When the pressure problem is corrected the light should go out.
The second problems is when there's an error in the TPMS itself. This situation seems to occur when the car's computer gets confused and can't read the remote sensors anymore. When this happens, the light flashes for a minute, then burns steadily. It will repeat this sequence every time the car is started.
So...if the TPMS light flashes when you start the car, you've probably got a system error. It's not a problem (other than the TPMS is no longer working) but it requires the system to be reset by a Nissan dealer.
What to do if the TPMS light comes on:
1. If you're driving and you notice the light is flashing, your TPMS is probably at fault. Take the next exit, stop at a safe location, and check the tires to be sure.
2. If you're driving and notice the light is solidly on, you might have a tire pressure problem or you may not have noticed the TPMS error light during the flashing period. Assess the "feel" of the car. If the car seems sluggish or there's noise coming from a corner of the car, you may well have a flat. If so, pull over at the first safe spot and check it out.
If you don't notice any difference in handling or noise, your TPMS may be faulty or the tire may not be completely flat (the sensor is supposed to trigger when the pressure gets down 25%...below ~28 PSI or so). In this case, take the next exit and find a safe location to stop. Turn off the ignition, then turn it back on. If the TPMS light flashes, you've got a faulty TPMS, and the car can be safely driven. Check the tire pressure just in case.
If the light comes on steady, the TPMS is probably detecting a low tire and corrective action is needed.
3. If a tire is flat or low, take the appropriate action (install spare or add air). If the TPMS itself is OK, this should turn out the light.
4. If your TPMS is faulty, OR re-inflating the low tire doesn't help, some folks have had some luck with this procedure: A - Inflate ALL tires to 40 PSI B- Drive the car five miles or so C - Reduce the pressure to the standard level
5. If your TPMS is faulty, contact your Nissan dealer. Depending on whether they've encountered the problem before, they can do a TPMS system reset while you wait.
Ron