2021 Kia K5 GT-Line AWD
What pressure does it read for the tires when cold? It should read at least 32-33 with recommended to be 35 on all 4 tires. When fully warmed up, the tires should read around 39 PSI (might be lower if it's cold out). Try not to pump air in the tires when you have been driving around for 5 mins or more as that would skew the PSI gauge reading.My warning light has come on. PSI is equal in all four tires. The tires are filled with nitrogen. The indicator is showing passenger front tire is low and its not. How do I reset. I can't find a button or a setting in the display. Thanks for the help.
This also depends on the ambient temp of the air around the car as well and if the tires were warmed by the sun.
The best times to check tire pressure would be early morning when the sun isn't intense or late at night. Just make sure you've given the tires ample time to cool down.