Can the guarantee company call the police to take back the car?

It is illegal for a guarantee company to forcibly take over the car, so it can call the police for mediation. Civil disputes are not under the jurisdiction of public security organs, and those that cannot be mediated need to go to court for prosecution.

Article 195 of the Property Law: If the debtor fails to perform the due debt or realize the mortgage right according to the agreement of the parties, the mortgagee may agree with the mortgagor to discount the collateral or give priority to compensation with the price of auction or sale of the collateral.