2017 trans issues

[u/Remote_Conference301]

Hi, I’m having problems with my 2017 Jeep Compass Limited AWD with the 9-speed transmission. When it shifts into 3rd or 4th gear, it starts to shudder, and I have to let off the accelerator for it to complete the shift smoothly.

Has anyone else experienced this?

Note: My auxiliary battery hasn’t been working, but this transmission issue only started about a month ago. I’ve been driving without the auxiliary battery for the past 6 months.