2007 Rancher TRX420FE faulty odometer

I recently purchased a 2007 TRX420FE Honda Rancher in excellent condition but it seems that the odometer is faulty. It does change but it seems like you have to go 10 miles to increase the odometer by one mile. Strangely, all the other lights and indications appear to work fine. Speedometer works properly. However, pressing the display toggle/reset button does nothing. Display is set to odometer and cannot be toggled to hours or anything else. I want to unplug and replug the display connector but I can’t get my hands on it and I’m not sure how to disassemble the display housing if I were to replace the combination meter/display. The manuals I have don’t really discuss it and I can’t find anything online. Right now I can buy a new display meter for around $130.00 but I hate to spend that money if there is a simple fix out there that someone has discovered. Has anyone had this problem? If I have to replace the display, does anyone have any helpful tips on how to go about it? Any tips on how to disconnect and reconnect the connector to the display meter, or how to get to it? Any help is appreciated!