I have a 2005. Since I am retired, I do not drive much. I have received two notices from Power Dodge in Phoenix notifying me that my truck is 30 days past due for routine maintenance and it could effect my eligibility for warranty. I can not find anything in my manual that says maintenance requirements are driven by anything but mileage. I have emailed Power Dodge twice asking this question and I do not get a response from them. Am I missing something?