The HLDI compiles its list of most-stolen vehicles from insurance claims on vehicles from the past three model years and notes, "Many pickup claims result from the theft of equipment from the truck bed, and that may be the case with some of the F-250 claims. HLDI's data don't distinguish theft of vehicle contents or components from theft of a whole vehicle."
According to the HLDI, vehicles with the highest insurance theft claims include the Chevrolet Silverado, Chevrolet Avalanche, GMC Sierra and Ford F-350. Vehicles with the lowest claims include the Dodge Journey, Volkswagen Tiguan, Audi A4 and Acura RDX.
To prevent vehicle theft, it's always a good idea to park in a well-lit, highly visible area. If your car didn't come standard with an ignition immobilizer, which prevents thieves from hot-wiring a car, you can have one installed. When you leave your car, make sure valuables are secured out of sight. If you drive a pickup, a lockable tool box, tonneau cover or bed cap can keep your gear safer.