Hyundai Tucson: Keyless Entry And Burglar Alarm / Description and Operation
- Description
Burglar Alarm State [B/A State]
B/A State | Description |
DISARM | 1) |
In "DISARM" state, no vehicle start inhibition. So, when door, hood, or
Liftgate is opened, there is no alarm sound and flashing. |
2) | If the battery is disconnected while the state is not "ARM/ARMWAIT/ALARM/REARM", B/A state is set to "DISARM" state. |
3) | In "DISARM" state, security indicator keeps blinking. |
|
ARMWAIT | 1) | In "ARMWAIT" state, when timer "30sec." is running, if this timer reaches "30sec", state transits to "ARM" state. |
2) |
If the battery is disconnected while the state is "ARMWAIT", B/A state
is set to "ARMWAIT" state and timer "30sec" is restarted. |
3) | In "ARMWAIT" state, security indicator keeps on. |
|

※ Remark: On Smart key system, it works the same way with passive lock
B/A State | Description |
AUTO LOCK TIMER 1 | 1) | In "AUTOLOCKTIMER1" state, timer "30sec."is running. If this timer expired, the auto lock command is generated "Lock command". |
2) | When "Lock command" operated, All Door changed lock and closed then B/A state changes "AUTOLOCKTIMER1" to "ARMWAIT |
3) |
In "AUTOLOCKTIMER1" state, Security Indicator keeps blinking. In
"AUTOLOCKTIMER1" state, timer "30sec."is running. If this timer expired,
the auto lock command is generated "Lock command". When "Lock command"
operated, All Door changed lock and closed then B/A state changes
"AUTOLOCKTIMER1" to "ARMWAIT |
|

※ Remark: On Smart key system, it works the same way with passive unlock
B/A State | Description |
AUTO LOCK TIMER 2 | 1) |
In "AUTOLOCKTIMER2" state, when timer "30sec."is running, if this timer
expired, the auto lock command is generated "Lock command". |
2) |
All doors are Locked, Hood is closed and Liftgate is closed when "Lock
command" operated, then B/A state changes to"AUTOLOCKTIMER2" when "Lock
Command" generated with Hood open. |
3) | When "Unlock command" operated on the condition of All Door closed and Hood open, B/A state changes to "AUTOLOCKTIMER2". |
4) | In "AUTOLOCKTIMER2" state, Security Indicator keeps blinking. |
|

※ Remark: On Smart key system, it works the same way with passive unlock
B/A State | Description |
PRE ARM | 1) | The
"PREARM" state is when user try to change to arm but pre-condition are
not satisfied (door open, liftgate open, or hood open). |
2) | B/A state changes to "PREARM" when TX Lock command occurs with any door Open, Hood or Liftgate Open. |
3) | B/A state changes to "PREARM" when "30sec." timer expired in"AUTOLOCKTIMER2"with Hood or Liftgate Open |
4) | The "PREAMR" state changes to "ARM" when all doors closed, All doors locked and Hood and Liftgate closed. |
5) | The "PREAMR" state changes to "DISARM" when Any Door Unlock |
6) | In this state, Security indicator keeps blinking. |
|

B/A State | Description |
RE ARM | 1) | In
"REARM" state, if the vehicle intrusion is detected, flashing and sound
is restarted, again and state transits to "ALARM" state. |
2) | B/A state changes to "REARM" after the timer "27sec." expires in "ALARM" state with All doors closed and lock. |
3) | Security Indicator keeps blinking. |
|
B/A State | Description |
AUTOLOCK TIMER3 | 1) | B/A state changes to "AUTOLockTIMER3", when TX-Liftgate command operated. |
2) | B/A state changes "AUTOLOCKTIMER3" to "ARMWAIT", when the "30sec." timer expires with all doors lock and closed. |
3) | B/A state changes "AUTOLOCKTIMER3" to "DISARM", when any door open. |
4) |
In "AUTOLOCKTIMER3" state, timer "30sec." timer is running. If this
timer expired, state transits to "PREARM" state with Liftgate Open. |
5) | In this state, Security indicator keeps blinking |
|

- Component Location
1. Keyless entry transmitter2. Burglar horn3. Intergrated Body Control Unit (IBU)4. Front door lock actuator5. Rear door lock actuator6. Liftgate lock actuator
...
Other information:
Hyundai Tucson (NX4) 2022-2025 Service Manual: Warning Indicator
- Components
1. BCW Indicator2. SVM Camera
- Inspection
1.Disconnect the negative (-) battery terminal.
2.Remove the front door trim.(Refer to Body - "Front door trim")
3.Disconnect the power door mirror connector from the harness
BCW indicator
- Removal
1.Disconnect the n ...
Hyundai Tucson (NX4) 2022-2025 Owner's Manual: Owner Maintenance
WARNING
Performing maintenance on the vehicle
can be dangerous. If you lack sufficient
knowledge, experience, or proper
tools and equipment to do the work,
we recommend to have it done by an
authorized HYUNDAI dealer. Before
performing maintenance:
Park your vehicle on level ground. ...