Had a very similar experience. My service air bag alert was going on an off. Then my power steering also stopped working, and my check engine light came on. Then I had problems shutting off the engine. Same thing. This happened last fall, and was due to a low battery. The new battery fixed everything, but then the issue came back a month or so ago. I took it to an independent garage near me with an impeccable reputation. The manager did a lot of research, and determine it was likely the ignition switch. he sent me the following link:
www.scannerdanner.com
The shop replaced the ignition switch, and all of the issues went away, and my jeep has been problem free since.
[FIXED] 2015 Jeep Renegade 1.4T Engine Not Shutting Down with IGN Off - ScannerDanner Forum - SCANNERDANNER
Hi Guys, I had a cool one come in today. Took just over an hour to diagnose it and replicate the codes while bypassing the faulty component. I marked this as...
The shop replaced the ignition switch, and all of the issues went away, and my jeep has been problem free since.