After snow and several days of rain, it was sunny and warm today. I decide to tackle the seat back. A trickle charger was connected to fully charge the battery.
I tried carefully to remove the bottom two push in clips. After pinching myself three times with needle nose pliers, I cut the dang things off.

No sense in trying to save them. A kit from Harbor Frieght has replacements. While removing the back, I could hear the slid clips bouncing around. I clean off glue and glue them back on. The Gorilla glue will cure overnight. The cover will go back on tomorrow.