What To Do When You Lose Your Car Keys. If the keys are not where you normally keep them, you should proceed as follows: Check that the battery in the key isn't flat.

Recovery of a lost key with a chip is recommended through an authorized dealer. If they have been stolen, you must report the crime to the police and get a crime reference number in order to make a claim with your insurer. They’re generally less than $20 and can be found at dealerships and auto parts stores as well as many online retailers.