I have two of these, one for boat, one for 2000 Corvette I rarely drive and they work well for less than $20 and comes with a quick disconnect plug easily mounted under the wiper.
MOTOPOWER MP00205C 12V 800mA Automatic Battery Charger Maintainer...
I had a 2013 GT with blind spot monitoring & nav that my daughter in law now drives, I loved the 2.0 gas mileage. A 2016 GT w Premium that added radar cruise, auto stopping features and steering headlights, walk away locks that I liked and my daughter now drives (carplay and AA can be added for...
It may be tire flat spotting. Stop with a hot tire for a long time and the tire retains the ground created flat spot until it warms up a little and gets tugged back into round shape. Usually goes away in side 5 miles. Make sure your tires are properly inflated so they do not get so hot.
Most of the dealer warranty require that you do all your maintenance work with them, on time, on schedule with receipts. They make enough off the maintenance to pay for the warranty claims...
I have had it a few times on my 2020 GT with premium. I got the software upgraded to 352 but still have had it 2-3 times in as many months. For me it seemed to happen after using the cylinder activation display. It seems better after I started displaying the mileage display after each trip...
My US 2016 GT came with the Sirius unit installed and is still being used by my daughter, in fact my 2013 GT had it also. Maybe you just need to activate the radio with Sirius...
The real problem is the blade does not park in a unloaded position off the glass so the rubber gets a set with the parking pressure over time making it skip.