I checked my pressure about an hour after I got home from work. Its pitch black when I leave for work.philipa_240sx wrote:A few important points.
- Tire pressure changes 1 psi for every 10 degF (or 5 degC) change in temperature.- Tire pressure should be checked first thing in the morning before driving. Reason: driving heats up the tires. The sun can also heat up the tires (hence the reason to check before the sun is really up).
You can easily get a 5psi drop in pressure and the TPMS light, esp if you set the tire pressure right after driving and/or in the heat of the day.
I have never gotten the TPMS light in my Rogue. I set the pressure at 35psi cold.
I own an air compressor. I can inflate my tires anytime I want.Cristen wrote:So, um, maybe a stupid question, but how are you setting the pressure to 35psi cold? Don't you have to drive to get to the air? Which leads me to another question - if it recommends setting it to 33psi cold (I assume cold), then what should I set it to if I am driving when I fill the tire?
Lets hope they knew your Rogue has TPMS sensors. The sensor sticks out from the rim and can be easily damaged by tire changing equipment. There are proper methods to remove a tire without damaging the sensor.Leo2005 wrote:I never had light on in my rogue also until yesterday because I got a flat tire. Local shop replaced it with bridgestone.
so ur saying if ur tires are at 30psi (just rounding it off from 32psi)mstrmstr wrote:Please note MAX pressures...are MAXIMUM SAFE STATIC PRESSURE.Dynamic pressure can become dangerous from heat-over or underinflation and driving habit.
At 70 MPH with correct inflation it is not uncommon to have a pressure rise of 5PSI and a increase of temperature of over 30 degrees F.
When using air vs Nitrogen inflation, the outside temperature has drastic effects on pressure. I've measured changes as high as 15lbs psi between 70 degrees ambient and 0 degrees F.
This is a very good tip. My light came on and I checked all tires pumped up to recomended 33psi... the light did not go out after a few trips. Stopped by a air compressor on the way home today and filled to 40 psi+-. The light went out with in 2 miles. In the morning I'll need to drop the psi back to 33 psi. So it seems you need to overinflate the tires to reset the sensor.philipa_240sx wrote:
I own an air compressor. I can inflate my tires anytime I want.
For those without easy access to compressed air or even a manual tire pump, here is my suggestion:
On your way home from work in the evening, overinflate the tires to about 38-40psi. This is safe since the tires will already be warm and you won't exceed the maximum 45psi pressure.
The following morning, check your tire pressue. They should still be overinflated. Adjust the pressure by releasing some of the air (1-2 sec worth) and recheck the pressure. Keep doing this until you reach the desired pressure.
PS, you should buy a manual (foot or hand operated) tire pump and keep it in the car. Should you ever have to change a flat in the middle of nowhere and find your spare tire is down on air as well... you will be glad you have one.
mstrmstr, you make a good point. Pressure will rise as the tire heats up from driving and increases in outdoor air temperature. You must take this into consideration when inflating tires.mstrmstr wrote:Please note MAX pressures...are MAXIMUM SAFE STATIC PRESSURE.Dynamic pressure can become dangerous from heat-over or underinflation and driving habit.
This is exactly what happened with ours. After a week, the light came on again. Since I was about a week away from getting my snow tires on, I just ignored it. When I had the all seasons off and the snow tires put on, I asked the service dept just to do a quick check to make sure there was nothing in the tires themselves. They told me the light will come on for as littla as a 2psi difference between tires and that since it had been cold, they think that was the cause. They told me to wait until spring when I put them back on and see if it comes back on in the spring.Roguemeister wrote:My light came on this morning. I checked the pressure before driving and all tires were within 29-32 psi. After driving to 3 local gas stations before finding an air compressor that actually worked I filled the tires to 33 psi as suggested on the door panel. It took about 20km of driving before the light went out.