One problem related to engine squeaking noise has been reported for the 2011 Chrysler 300. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Chrysler 300 based on all problems reported for the 2011 300.
Shifter was squeaky sounded like an old car every time you shifted to a different position. Took in to the dealer services center and while they were fixing other issues they said it needed to be replaced so they did. Now 6,000 later it sounds the same and when I took it in ones again for other issues they said it needed to be replaces. Apparently the shifter is defective. My car has only 36,000 and has been in the shop 7 times and all different issues.