One problem related to horn assembly has been reported for the 2010 Chrysler 300. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2010 Chrysler 300 based on all problems reported for the 2010 300.
The totally integrated power module (tipm) has failed on my vehicle. At first it started as a dead battery which was replaced, then a parasitic draw which could not be diagnosed right away, then caused my started not to have power. The car would turn itself on while it was turned off and make the lights bug out and horn sound. Then it would stop and start again multiple times draining the battery. I was driving between states and I stopped for gas when my car no longer started and was stranded there for hours before it would start again. Its stationary when the car would turn itself on and off.