TIPIM

What is your question?

An autobody shop repaired damage to my car after an accident. They replaced the rear bumper and backup cameras. While doing this, the TIPIM went. They are claiming it "happened to go" but none of their work involved the TIPIM. I do not know anything about cars, can you tell me if they could have caused this problem? They charged me over $1,000. to be able to drive off the lot. Thank you.