I was doing some shopping last week which involved several stops. Returning to the truck from one of these stops, the info screen displayed this message: "Service Tire Pressure System." The diagram then displayed showing dashes instead of numbers for the tire pressures. A walk-around confirmed all four tires appeared to be fully inflated. The message went away and the screen showed tire pressures 33-34 psi. As I continued to drive, the fault message came and went. Yesterday I pulled a small car on a tow dolly several miles and set all four truck tires at 36 psi. When the system decided to work, it showed 33-34 psi.
I have an appointment to take the truck to a dealer, but I'm curious if anyone else has had this problem.
I had a similar issue with mine yesterday. It read low tire pressure, yet the flashing wheel indicated was the one reading highest pressure. Dealer corrected the problem by inflating all wheels to max rec. tire pressure. Which really doesn't add up as different tires will require different max pressure. Also prevents me from airing up/down for ride or towing. This also prevents me from running at the pressure indicated on my door specs.
Just bought a 2012 outdoorsman the tpms came on the other morning and one tire was at 37 flashing i ran around it came up 2 lbs but was still flashing the other tires were at 45 45 42 i open the door to look at the the recommended tire pressure and it was 43 wow is this high or normal for a dodge and if i took all to 40 will the tpms flash or is it set for the 43lbs thanks
I took the truck to the dealership Wed morning. What I thought should take about 10-15 minutes was almost an hour and a half. I could see my truck in the shop with the hood raised and no activity for much of the time it was in there. Then the mechanic took it out for a test drive. He was gone long enough that I began to wonder if he was making a run to McDonald's - he wasn't. Seems the problem been cured. No more light or message and the TPs all read 35 psi.
The TPMS system on these 2012's are very sensitive and require that weather changes be monitored. My tires P265-70-17's require 40 psi and the TPMS will activate at 37. I keep them at 42 and no more problems.