Folks,

You might want to replace those missing valve stems caps with the original caps from the dealer. I am not a fan of supporting the inflated Chrysler mark up but according to the service manual the cap does serve the critical function of of keeping moisture out of the valve stems. Supposedly there is an o-ring in the cap and seals the stem and prevents moisture from getting in an killing the TMP sensors. I am sure the the TPM sensors cost a lot more the $30, especially when I found out the round SRS badge on the door costs $50!