Keyless Entry: Description and Operation
Keyless Entry/Security Alarm SystemSystem Description
Security Alarm System
The security alarm system is armed automatically after the doors, hood, and trunk lid are closed and locked. For the system to arm, the ignition switch must be off and the key removed, and the security control unit must receive signals that the doors, hood, and trunk lid are closed and locked. The alarm can be disarmed at any time by unlocking either door with the key or the remote transmitter.
When everything is closed and locked, none of the control unit inputs are grounded (switches open). Fifteen seconds after the doors are locked with the key, the driver's lock knob, or the remote transmitter, the system arms. The security indicator on the driver's door panel flashes immediately after everything is closed and locked.
If one of the switches is misadjusted or there is a short in the system, the system will not arm. As long as the control unit continues to receive a ground signal, it senses that the vehicle is not closed and locked, and it will not arm. Conversely, a switch that is slightly misadjusted can sound an alarm for no apparent reason. In this case, it may only take a significant change in outside temperature, the vibration of a passing truck, or someone bumping into the vehicle to make the alarm sound.
If anything is opened or improperly unlocked after the system is armed, the control unit receives a ground signal from that switch. The system sounds the alarm when any of these things occur:
- A door is forced open
- A door is unlocked without using the key or the remote transmitter
- The hood is opened
- The trunk lid is opened without using the remote transmitter
- The audio unit is removed
When the system sound the alarm because of one of these violations, the security horn sounds and the headlight (low beam), parking lights, taillights, and side marker lights flash for 120 seconds. The alarm then shuts off and the system rearms. The alarm can be stopped at any time by unlocking either door with the key or the remote transmitter.
Panic Mode
The panic mode allows the security system to be set off by the remote transmitter to attract attention. When you push and hold the PANIC button for about two seconds, the alarm will sound and the exterior lights will flash for about 30 seconds.
To immediately cancel the panic mode, press any button on the remote transmitter, or turn the ignition switch ON (II). The panic mode will not function if the key is in the ignition switch.
Keyless Entry System
The security alarm system receives lock (arm), unlock (disarm) and panic signals from the keyless entry control unit. The keyless entry system allows you to lock and unlock the vehicle with the remote transmitter. When you push the LOCK button, all doors lock. When you push the UNLOCK button once, only the driver's door unlocks. The passenger's door will unlock when you push the button a second time.
The two keyless remote transmitters also activate the Driving Position Memory System (DPMS). Each transmitter is coded to send either the Memory 1 or Memory 2 signal to the DPMS control unit. The code is marked on the rear of each remote transmitter. The feature can be turned off by pressing the LOCK and UNLOCK buttons on the transmitter at the same time, and waiting for the LED on transmitter to blink twice. To turn the feature back on, press and hold the LOCK and UNLOCK buttons at the same time, and the LED will blink once.
The ceiling light, if its switch is in the center position, will come on when you press the UNLOCK button. If you do not open a door, the light will go off in about 30 seconds, the doors will automatically relock, and the security system will rearm. If you relock the doors with the remote transmitter within 30 seconds, the light will go off immediately.
You cannot lock or unlock the doors with the remote transmitter if a door is not fully closed, or if the key is in the ignition switch. If the trunk or hood is not closed, the doors will lock and unlock, but the security system will not be armed until the trunk lid and hood are closed. To open the trunk lid, push the Trunk Release button and hold it for about two seconds. The trunk lid will not open if the key is in the ignition switch. The system will signal you when the doors lock and unlock by flashing the parking lights, side marker lights, and taillights: once when they lock, and twice when they unlock.
When you press the LOCK button a second time within 5 seconds after you have locked the doors, the horn will sound once to verify that the security system will be set.