I just had tire pressure at 37 psi on all four tires. Soon afterwards, the tire meter on my dashboard is telling me all four tires have different psi. One has 40 the other 38, 39, 35, is this normal?
Many times the TPMS is not as accurate as a tire pressure gauge. Use a tire pressure gauge to set the tire pressure cold and monitor the TPMS system to detect a low or deflated tire.
You have a 2015, so surely you are under warranty? Take it to your dealer and complain, the squeaky wheel gets the grease! BTW, I've yet to find a car where all tire pressure gauges work 100% accurately, I always rely on a manual pressure gauge.
Ken, my Corvette is shockingly close on TPMS versus tire gauge.
It is normal for tire pressure to increase in the tires as you drive and the tires heat up. 1 or 2 psi difference between the tires is normal depending on which tires slip when you're accelerating or turning. Verify the tire pressure with an external gauge.
I bought 200 limited used last week and picked it up from the dealer and the next night I went to get in it and noticed the tire pressure on my front right tire was at 27th it was cold of course and I know that as the tires heat up there supposed to go up so I stopped I put air in the tires and put the pressure at 37 like the door says then I left there drove over an hour to where I was going and the tire pressure then went down to 34 I just got in it tonight after it fluctuating so much the past couple days I went by the dealership but now I got in it tonight and it was back down to 29 it's just crazy back up to 38 down to 37 like
To the guy above - your RF tire probably has a slow leak. I would check out the valve stem first.
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