One problem related to air bag on-off switch has been reported for the 2004 Chrysler 300M. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Chrysler 300M based on all problems reported for the 2004 300M.
Dashboard developed a 10 -12" crack just to the left of the passenger side airbag. Do not know if the airbag system will work or not. In any event this seems to be a manufacturing problem, by the number of complaints. Dealer(s) are of no help as the vehicle is out of warranty. This vehicle has also had the common problem of the headlamps/instrumentation lights flickering. Headlamps would flash on/off along with instrument lighting. Headlight switch panel replaced, but the problem returned.