Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Theft Warning Alarm
- The theft warning alarm function activates horns and headlamps intermittently when BCM detects that any door is opened by unauthorized means, while the system is in the ARMED state.
- Security indicator lamp on combination meter always blinks when ignition switch is in any position other than ON. Security indicator lamp blinking warns that the vehicle is equipped with a vehicle security system.
Operation Flow
| No. | System state | Switching condition | ||
|---|---|---|---|---|
| 1 | DISARMED to PRE-ARMED | When all conditions of A and one condition of B is satisfied. | A | B |
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All doors are locked by:
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| 2 | PRE-ARMED to ARMED | When all of the following conditions are satisfied for 30 seconds. |
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| 3 | ARMED to ALARM | When all conditions of A and B are satisfied. | A | B |
| Keyfob: Not used |
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| 4 | DISARMED to PRE-RESET | No conditions. | ||
| 5 | PRE-ARMED to PRE-RESET | |||
| 6 | ARMED to PRE-RESET | |||
| 7 | ALARM to PRE-RESET | |||
| 8 | PRE-RESET to DISARMED | |||
| 9 | PRE-RESET to PRE-ARMED | |||
| 10 | PRE-ARMED to DISARMED | When one of the following condition is satisfied. |
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| 11 | ARMED to DISARMED | When one of the following condition is satisfied. |
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| 12 | ALARM to DISARMED | |||
| 13 | RE-ALARM | When the following condition is satisfied after the ALARM operation is finished. |
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- BCM ignores the door key cylinder UNLOCK switch signal input for 1 second after the door key cylinder LOCK switch signal input.
- To lock/unlock all doors by operating remote controller button of Keyfob, the Keyfob must be within the detection area of remote keyless entry receiver. For details, refer to "SYSTEM DESCRIPTION ".
DISARMED Phase
The vehicle security system is not set in the DISARMED phase. The vehicle security system stays in this phase while any door is open, because it is assumed that the owner is inside or nearby the vehicle. Security indicator lamp blinks every 2.4 seconds.
When the vehicle security system is reset, each phase switches to the DISARMED phase directly.
PRE-ARMED Phase
The PRE-ARMED phase is the transient state between the DISARMED phase and the ARMED phase. This phase is maintained for 30 seconds, so that the owner can reset the setting due to a mis-operation. This phase switches to the ARMED phase when vehicle conditions are not changed for 30 seconds. Security indicator lamp illuminates while being in this phase.
To reset the PRE-ARMED phase, refer to the switching condition of No. 10 in the table above.
ARMED Phase
The vehicle security system is set, and BCM monitors all necessary inputs. If any door is opened without using Keyfob, vehicle security system switches to the ALARM phase. Security indicator lamp blinks every 2.4 seconds.
To reset the ARMED phase, refer to the switching condition of No. 11 in the table above.
ALARM Phase
BCM transmits "Theft Warning Horn Request" signal and "High Beam Request" signal intermittently to IPDM E/R via CAN communication. In this phase, horns and headlamps are activated intermittently for approximately 50 seconds to warn that the vehicle is accessed by unauthorized means. ON/OFF timing of horns and headlamps are synchronized. After 50 seconds, the vehicle security system returns to the ARMED phase. At this time, if BCM still detects unauthorized access to the vehicle, the system is switched to the ALARM phase again. This RE-ALARM operation is carried out a maximum of 2 times.
To cancel the ALARM operation, refer to the switching condition of No. 12 in the table above.
PRE-RESET Phase
The PRE-RESET phase is the transient state between each phase and DISARMED phase.
PRE-ARMED phase is not available for this models.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.