What is the highest tire pressure psi to avoid getting a tire pressure high warning?

[Scotty8154]

The vehicle tag says to inflate the front tires to 43psi and the rear tires to 49psi. I inflated the tires to 38 front and 43 rear and got a "tire pressure high" warning. I took some air out of the tires and am now down to 35 psi on all tires and am still getting the "tire pressure high" warning for some of the tires. Seems quite low for these tires. I use the vehicle exclusively on paved roads. What is the highest tire pressure I can have without causing the "tire pressure high" warning?

Bridgestone Dueler 255/70R18 tires (50 psi max)

 

[terdrocket]

Reset the RCP

 

[Jeremy996]

Reset the RCP

What he said - the tire (tyre) pressures considered normal by the system are a moveable feast depending on the last reset. Unless you are fully loaded, you probably want about 38psi all round for normal use for drivability.

 

[rob88]

The vehicle tag says to inflate the front tires to 43psi and the rear tires to 49psi. I inflated the tires to 38 front and 43 rear and got a "tire pressure high" warning. I took some air out of the tires and am now down to 35 psi on all tires and am still getting the "tire pressure high" warning for some of the tires. Seems quite low for these tires. I use the vehicle exclusively on paved roads. What is the highest tire pressure I can have without causing the "tire pressure high" warning?

Bridgestone Dueler 255/70R18 tires (50 psi max)

You need to reset the TPMS system after you change the pressures. The warning is for the change, not the absolute pressure.
Drive for a few minutes above 15 mph after you've set your final pressures. The system should then relearn and the warnings will clear.
Your chosen pressures are fine for road use. The system just needs to be told that those are the new normal.