A Smart Key is a type of car key that typically uses a proximity signal  instead of a standard key to disable your car’s standard security system. Often but not always you can keep your smart key inside your pocket or purse and simply press a button to start your car.  Each car manufacturer calls their proximity smart keys something different so here is a list I’ve compiled that names each one and tells what they stand for (as some of them are acronyms).

• Acura – Keyless Access System
• Audi – Advanced Key
• BMW – Comfort Access
• Chrysler Group – Keyless Enter-N-Go
• Ford Family – Intelligent Access (IA)
• General Motors – Passive Entry Passive Start (PEPS)
• Infiniti – Infiniti Intelligent Key
• Jaguar – Smart Key System
• Kia – Smart Key System
• Lexus – Smart Access System
• Mazda – Advanced Keyless Entry & Start System
• Mercedes Benz – Keyless Go
• Mini – Comfort Access
• Mitsubishi – Free-Hand Advanced Security Transmitter (FAST)
• Nissan – Nissan Intelligent Key
• Porsche – Porsche Entry & Drive System
• Suzuki – SmartPass
• Toyota – Smart Key System
• Volkswagen – Keyless Entry & Keyless Start (KESSY)
• Volvo – Personal Car Communicator (PCC) or Keyless Drive