How to remove window valance - Keystone 2012 Outback 301BQ

Question edited for clarity.
Question moved from Cars and Trucks to correct category.

Jayco Trailer Window Replacement ' Alfa Auto Glass

https://alfaautoglass.com > jayco-trailer-window-replace...
Jayco Windows That We Replace. Emergency exit windows over regular windows; Door window; Side windows; Bathroom windows; Bedroom windows; Rear window ...

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Removing the valance is easy, typically using 2 or 3 wood screws with an S2 head. The biggest obstscle will be removing the blinds to access those screws. Depending on the type of blinds you have, they will be attached using the same type screw on a Day/Night shades or they could snap into a bracket like Slow-Rise roller blinds. If you can identify the specific blinds or manufacturer, Google them and look for installation instructions. They are usually in PDF format and long through them will show you the specific bracket used, how it is secured and where to locate the screws. If you have an electric screwdriver, use it to save your wrists and a 6" hex bit extension will make reaching those screws much easier.

On another note, I've replaced ALL the Day/Night strings on my toy hauler at one point or another and never needed to remove the valance,.

we do not have any videos here.
ever heard of youtube, videos take HUGE SPACE<
gotta be rich to host those videos' and they are.

or call the glass man in town?

There should be plugs underneath the camper to drain the water tanks. Remove them and let the water drain. There should also be a plug on the water heater, remove and let water drain. There is also a bypass valve on the water heater to divert water away from the heater, turn this to bypass. After the water has drained replace the plugs except the water heater plug. The heater plug can stay out. Fill fresh water tank with RV antifreeze, usually about 3 gallons or maybe a little more for larger RVs. Run pump opening faucets one by one till water is forced out and the antifreeze flows including toilet. When antifreeze is flowing out the faucets close faucets and shut off pump. When pump is shut off open faucets, the antifreeze may get slushy in very cold conditions but wont freeze and a little may drip out of the faucets. The water heater may still have a small amount of water in it but shouldn't be a problem if you leave the plug out. Make sure the blackwater and greywater tanks are empty, you can dump a little antifreeze down the drains and toilet to make sure the sink traps are free from water and the blackwater tank has antifreeze in it. Other than that just shut the propane tanks off and youre done. Try to leave a couple of windows cracked slightly to promote airflow and reduce condensation inside the camper

Normall with breaker panel.

http://easyrvwindows.com/rv-window-installation.html

it may be easier for you and possibly cheaper if you just go to a local neighborhood home improvement store or possibly a shop that does auto window replacement and they can just custom cut a replacement window for you. the automotive shop may also do the installation as well.