4 suggestions where I have seen this.
1. Alternator has failed
2. Wiring short in harness from rear LHS to cab that runs down LHS chassis
3. Warning panel failure
4. Most likely if you have ATU or autosteer could be a greenstar component overloading canbus or back feeding power to panel
1. Alternator has failed
2. Wiring short in harness from rear LHS to cab that runs down LHS chassis
3. Warning panel failure
4. Most likely if you have ATU or autosteer could be a greenstar component overloading canbus or back feeding power to panel