Can the property security guard give the owner a garage remote control to let him escape and call the police?

In this case, you can call the police.

The property security guard escaped while giving remote control to the owner's garage, and the other party constituted theft. Because the owner's garage remote control is the property of the owner, it is regarded as theft for the security guard to take it away without permission.

Whoever steals or steals public or private property in a relatively large amount, or repeatedly steals, breaks into houses, steals with weapons or pickpockets, shall be sentenced to fixed-term imprisonment of not more than three years, criminal detention or public surveillance, and shall also, or shall only, be fined.