Kitchenaid 36" glass cooktop with small crack

It is not advisable to use a broken ceramic top.

You are either:
A) missing the mounting screws and brackets that hold the unit in place
B) it is stuck and will require brute force to remove
C) both

I found this......

https://www.doityourself.com/stry/how-to-replace-a-glass-cooktop-on-kitchenaid-ranges

I read it and it's on replacing but the top comes out.
Gloves are a good idea too. Cut power at the breaker.
unless easy access to the wiring/plug.
Hope this helps you.
Have a good evening.

The glass top is replaceable.

GLASS MAINTOP ASSY
Part Number PS253905
price around $812.92

Replaced main glass cooking surface on cooktop

First, shut of the breaker to the cooktop.
Then removed two screws to release brackets holding cooktop down. Then lifted the cooktop out of the recess in the counter top and removed the screws around the outside of the glass top. Removed the old, cracked top, by unplugging from the motherboard.
Turned the new cooktop upside down on table and placed weather stripping around the entire underside outside edge (to keep spills from going under the cooktop and cushion the cooktop from the counter top.
Then plugged the new cooktop into the motherboard, replaced screws around outside edge, lowered the cooktop into the recess in the counter, and reinserted the two screws into the hold-down brackets.
Turned the breaker back on.
Note: Just need Screw drivers and 40 minutes of your time.

Sorry to read about your problem, I hope this helps you out.

you may want to think about a new unit, the glass replacement will cost from $600.00 to $900.000

I tried to help you. Please help me and Rate/Vote on my response, thanks and good luck

Call Reliable Parts 1-800-666-0313 with your model number and they will ship you one. Good Luck, Appliance Specialists

It's wasn't the perfect solution but I removed all the burner caps and cleaned each one with a tooth brush. Then using a metal trussing pin, I poked through the flame holes to clean them. Noticed better flame output from both.

The top can not be repaired. The glass must be replaced . DO NOT USE IT CRACKED!!!!!!!!!!!! This is very dangerous as it can explode from the temperature. Also this is a severe electrical danger as glass top units have exposed elements underneath. Any liquid at all can short it out and cause a fire. I don't know if it is worth repairing. I don't have the exact price for your cooktop but last one I priced was between $350 - $500.