A smart key sends a coded radio signal to your car. When the car detects the right key nearby, it unlocks and allows push-button start.
The basics
The car and key exchange encrypted codes. If the key isn't paired, the immobilizer blocks starting.
Why programming is needed
Each new key must be registered with the vehicle's computer using specialized equipment.
Battery tips
- Replace batteries every year or two
- Learn your car's backup start location
- Keep keys away from water