I live in Perrysburg NY, USA. Just got my new 2021CFO  500 with plow yesterday.  I had a yamaha 250 bear tracker for 21 years. Finally decided to upgrade.  The CFO runs fine but the 2 wheel / 4 wheel drive indicator on the instrument panel will not switch from 4 wheels to 2 wheels when you go back to 2 wheel drive.  I can hear something ( motor/rack ) running when you go from 4 wheel to 2 wheel but the indicator doesn't switch.  I called the dealer - sales person after hours. He's going to get with service and call me back today. Anyone have similar issues?  Could it be a limit or prox switch?

[2015 Z Force 800 53/Trail EPS]

Sounds like a bad contact in the actuator. They may just need to replace it. Is it actually shifting in and out of 4wd? And does the 4wd light just stay on? Try switching it at a dead stop on level ground, then rocking it back and forth..just to make sure the slide is moving 100% to each direction.

My Daughter has a CForce 500 and it does the same thing occasionally... i just haven't worried about it..
I will be interested to hear what your dealer says about it.... we both love that quad