Vehicle security systems

unique code including a serial number, used by the automotive industry to identify individual motor vehicles, towed vehicles, motorcycles, scooters and mopeds

thumb|The Remote keyless system|remote of a first-generation immobiliser thumb|Immobiliser sign thumb|Vehicle Immobilizer Active light in a Suzuki Vehicle. An immobiliser or immobilizer is an electronic security device fitted to a motor vehicle that prevents the engine from being started unless the correct key (transponder or smart key) is present. This prevents the vehicle from being "hot wired" after entry has been achieved and thus reduces motor vehicle theft. Research shows that the uniform application of immobilisers reduced the rate of car theft by 40%.

automotive term referring to a vehicle system with self-diagnostic and fault reporting capability

device installed in a vehicle in an attempt to discourage theft

security feature of a motor vehicle

theft of vehicles

electronic lock that controls access to a building or vehicle without using a traditional mechanical key

Mobile object monitoring system

means for automatically determining and transmitting the geographic location of a vehicle

electronic access and authorization system

KeeLoq is a proprietary hardware-dedicated block cipher that uses a non-linear feedback shift register (NLFSR). The uni-directional command transfer protocol was designed by Frederick Bruwer of Nanoteq (Pty) Ltd., the cryptographic algorithm was created by Gideon Kuhn at the University of Pretoria, and the silicon implementation was by Willem Smit at Nanoteq (Pty) Ltd (South Africa) in the mid-1980s. KeeLoq was sold to Microchip Technology Inc in 1995 for $10 million. It is used in 'hopping code' encoders and decoders such as NTQ105/106/115/125D/129D, HCS101/2XX/3XX/4XX/5XX and MCS31X2. KeeLoq

electronic system fitted to motor vehicles to deter criminals from hijacking them

automotive anti-theft device