Probably needs replaced. I would say as soon as you heat it up(where the chip is) it will crack all the way through. Knowing it's gonna happen you could try the other burners to see if they will make it crack. Just don't be close to it.
Dang! Wonder if it’s worth anything? We paid $900 for it last year but my parents are changing their stove out to NG soon, we may get theirs to help save some money.
Just get a replacement top. If you go that way. pm me the model and serial number and I'll get you a price. Itll be cheaper than you can get it anywhere else
Highly likely to crack all the way through. New maintops are expensive, partly because of their size, shipping, and likelihood of being damaged in shipping. Being that it’s an LG, you may have a tough time finding the maintop, LG is known for having poor parts availability.