My 2013 Doge 2500 Ram has a tire pressure monitor system. When should the light come on? 4 PSI below, or some other PSI? Will it come on above the door sticker recommended PSI?
Tire pressure monitor will usually indicate a difference in tire pressure of 4 to 6 psi. I run my vehicles all above the recommended pressure (posted on the door post) and have no issues with the TPMS system. I do NOT run my tires above the maximum cold inflation pressure indicated on the sidewall of the tire.
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