System Description

SYSTEM FUNCTION

Function	Outline
Push-button start function	When the electrical key transmitter sub-assembly is brought into the vehicle and verified, this function changes the power source or starts the hybrid control system when the power switch and brake pedal are operated.
Battery saving function for vehicle	When the vehicle is not used for a long time, this function extends the interval between each periodic transmission of the request signal, or stops transmission of the request signal to save auxiliary battery power. When 5 days elapse without a response from the electrical key transmitter sub-assembly, periodic transmission stops. When 14 days elapse without a response from the electrical key transmitter sub-assembly, the lock/unlock sensor of all door outside handle assemblies except the driver door is disabled. When the electrical key transmitter sub-assembly is left in a detection area for 10 minutes or more, the smart key system automatically deactivates the exterior detection area the electrical key transmitter sub-assembly is in.
Battery saving function for key	If a switch on the key is depressed and held, this function stops transmission of the signal after approximately 20 seconds to save transmitter battery power.
Key cancel function	Cancels the smart key system when certain operations are performed.
Immobiliser function	Allows the hybrid control system to be started only using registered keys to prevent an unauthorized hybrid control system start.
Automatic power off function	With the shift lever in P and the power switch on (ACC) (the hybrid control system is not started and the vehicle is not moving), the power automatically turns off when the vehicle is left as is for 20 minutes or more. With the shift lever in P and the power switch on (IG) (the hybrid control system is not started and the vehicle is not moving), the power automatically turns off when the vehicle is left as is for 60 minutes or more.

DETECTION AREA
NOTE:
- Depending on the vehicle body shape, the electrical key transmitter sub-assembly may not operate in certain locations.
- Even if the electrical key transmitter sub-assembly is in the vehicle exterior key detection area, the electrical key transmitter sub-assembly may not be properly detected if the electrical key transmitter sub-assembly is near a window, a door handle or the center of the rear bumper.
- Even if the electrical key transmitter sub-assembly is in the vehicle interior key detection area, the electrical key transmitter sub-assembly may not be properly detected if the electrical key transmitter sub-assembly is on the instrument panel, in the glove box or on the floor.
- Depending on the way the electrical key transmitter sub-assembly is held, the electrical key transmitter sub-assembly may not operate properly.
- The key detection area may reduce in size or the electrical key transmitter sub-assembly may not be properly detected under the conditions below:
  - The transmitter battery is depleted.
  - There are TV towers, electric power plants, broadcasting stations, gas stations or other facilities that produce strong electric waves nearby.
  - Wireless products such as cell phones, etc. are carried with the electrical key transmitter sub-assembly.
  - The electrical key transmitter sub-assembly is covered by or in contact with a metal object.
  - Electric wave-type keyless entry systems are being operated nearby.
  - The electrical key transmitter sub-assembly is placed near high-voltage equipment or equipment that emits electrical noise.
1. The request signal sent from the certification ECU (smart key ECU assembly) is transmitted from each electrical key antenna (outside) to form the smart key detection area. The detection area formed by each electrical key antenna (outside) has a detection range of 0.7 to 1 m (2.30 to 3.28 ft.) from the door handles and rear bumper (electrical key antenna [outside luggage]).
2. When the vehicle is parked (the power is off and the doors are locked*), the detection area of each electrical key antenna (outside) is formed by emitting a periodic request signal every 0.25 seconds in order to detect the electrical key transmitter sub-assembly. Also, when the doors are locked and a lock sensor is touched, a request signal is emitted, the detection area outside the vehicle is formed and the electrical key transmitter sub-assembly is detected.
  HINT:
  
  *: The smart key system controls each door individually. After a door is locked with the door lock sensor or wireless remote control function, a detection area is formed at the locked door even if all the doors are not locked.
3. The detection area of the electrical key antenna (outside luggage) is formed when the back door opener switch assembly is pressed.
4. The detection area inside the vehicle is formed and the electrical key transmitter sub-assembly is detected when any of the following conditions are met: 1) The driver door is opened and closed, 2) the brake pedal is depressed, 3) the power switch is operated, 4) the conditions required for various warnings are met, or 5) a smart door lock operation is performed.
5. The detection area inside the vehicle when starting the hybrid control system can be customized through the customize function. Refer to CUSTOMIZE PARAMETERS .