RE: TPMS sensor alert.
I had my light come on also about a week after getting my R/T . Was on the interstate headed to the dealer for some paper work that needed to be signed. I pulled over and the tire's looked ok . So I drove to the next exit . Was showing 31 on the gauge I had . A new Snap on dial gauge with about a foot of hose. I drove on to the dealer as the light was still on . They aired the tire's up to about 34 lb. It was in the teen's that morning . They said you had to drive a few mile's after airing the tire's up for it to reset . Any way the light went out . They said you have to have 33 lb in the R/T . And light would come on if it dropped below that . They had sold several new R/T Challenger's and said they'd had several come in with the air below 33 . I laughted and said I guess they don't want you to have a low tire at 160 mph. My wife's 06 300 C doesn't come on till drop's to 26 lb. Her light came on a few morning's ago with temp was in low teen's.