1. The best and only way to prevent thefts from motor vehicles is never to leave valuables in your car unattended – particularly electronic goods such as cellular phones and laptop computers. Preventing the theft of car radios is more difficult. Some car stereo manufacturers make detachable faceplates or stereos that pull easily from the dashboard, allowing you to take it with you or lock it in the trunk.
2. Many thieves now break into cars if there are signs that checkbooks, personal documents, purses, mail or personal items, which would assist in the crime of identity theft, may be inside.
3. Never leave personal identification documents, vehicle ownership titles, or credit cards in your vehicle.
4. Never leave valuables in plain view, even if your car is locked. Put them in the trunk out of sight.
5. If you have a button inside your car that opens the trunk when no key is in the ignition, valuables in your trunk are not secure.
6. Thieves may break into your vehicle if a garage door opener is visible, if they know where you live, or if your car is parked in front of your house. This gives them access to at least your garage and possibly your home.
7. Never leave your car running unattended, even to dash into a business, store, etc.
8. Never leave any keys in the car or ignition, inside a locked garage, or in hide-a-key boxes.
9. Always roll up your windows and lock the car, even if it is parked in front of your home.
10. Always park in high-traffic, well-lighted areas, when possible;
11. Install a mechanical device that locks the steering wheel, column, or brakes. These devices will deter some criminals.
12. Investigate the purchase of a vehicle theft tracking/security system, especially if you own one of the frequently stolen model vehicles.
13. If you must leave your key with a valet, attendant, or mechanic leave only the ignition key. Make sure you are dealing with a reputable firm.
14. Copy your license plate and vehicle information (VIN) numbers on a card and keep them with you. If your vehicle is stolen, the police will need this information to take a report; and,
15. Many vehicles today come with some type of security system from the factory. Normally there are upgraded systems available if you ask. The best choices are systems that shut off the fuel supply so that a car can't be started or driven.
16. If your vehicle is stolen, report it to the police immediately.