Restraint System
Important: If the vehicle has been in a collision, refer to
Repairs and Inspections Required After a Collision
for additional information.
Vehicle has front seat belts that are the primary means of occupant restraint. Seat belts help to keep the occupants inside the passenger compartment and to gradually reduce the impact forces during the following events:
| • | Frontal impact type crashes |
| • | Rear impact type crashes |
| • | Side impact type crashes |
All seat belt retractors have emergency locks. The retractors remain unlocked during normal operation and under normal driving conditions. The retractors remain unlocked during normal conditions in order to allow free movement of the upper body of each
occupant. A pendulum locks the seat belt webbing into position. The pendulum causes a locking bar to engage a cog on the spool of the retractor mechanism when the following conditions occur:
| • | A rapid extraction of the seat belt webbing from the retractor |
| • | An abrupt change in vehicle speed |
| • | An abrupt change in vehicle direction |
| • | Operation of the vehicle on a steep upgrade |
| • | Operation of the vehicle on a downgrade |
The seat belts have an automatic locking (cinch) feature. The cinch feature is activated when the seat belt webbing is completely extended from the retractor. The cinch feature prevents the webbing from extending beyond the position from which it is allowed
to retract. Use of the cinch feature is recommended for securing a child seat. The cinch feature may be cancelled by allowing the webbing to wind back completely into the retractor. After the cinch feature is cancelled, the webbing is unlocked. After the cinch
feature is cancelled, the webbing will extend from the retractor. This vehicle is also equipped with a SIR system. Refer to
SIR System Description and Operation
.
Front Seat Belt System
The front seat belt system includes a driver and passenger seat belt pretensioner retractor. Both front seat belt pretensioners includes a seat belt switch in the seat buckle which controls a reminder lamp and a tone alarm.
| | Important: The front passenger seat is equipped with a passenger presence system (PPS), which detects an occupant. If the PPS detects an empty front passenger seat, then the passenger fasten safety belt indicator will be disable.
|
| • | When the driver seat belt is buckled, the driver door is closed, and the ignition switch is turned ON, the following events will occur: |
| - | The tone alarm will not operate. |
| - | The reminder lamp will not operate. |
| • | When the passenger seat belt is buckled with an occupant sitting in the passenger front seat, and the passenger door is closed, then the ignition switch is turned ON, the following events will occur: |
| - | The tone alarm will not operate. |
| - | The reminder lamp, which is located within the PPS status indicator for the passenger seat, will not be turned ON. |
| • | When the driver seat belt is not buckled, the driver door is closed, and the ignition switch is in the ON position, the following events will occur: |
| - | The tone alarm will operate for 4-8 seconds and then go OFF. |
| - | The fasten safety belt indicator will turn ON for 20 seconds, until the driver seat belt is buckled. |
| • | When the passenger seat belt is not buckled with an occupant sitting in the passenger front seat, and the passenger door is closed, then the ignition switch is turned ON, the following events will occur: |
| - | The tone alarm will operate for 4-8 seconds and then go OFF. |
| - | The reminder lamp, which is located within the PPS status indicator for the passenger seat, will be turned ON. |
Fasten Safety Belt Indicators
There are 2 fasten safety belt indicators for this vehicle. The driver fasten safety belt reminder is monitored on the instrument panel cluster (IPC) and the passenger fasten safety belt reminder is located in the PASSENGER AIR BAG ON/OFF status indicator.
The fasten safety belt indicator may only be ON during RUN. The IPC illuminates the fasten safety belt indicator under the following conditions:
| • | The inflatable restraint sensing and diagnostic module (SDM) sends the status of the driver and passenger seat belt switch to the IPC via a serial data communication message. The IPC controls both indicators by using the serial data message from
the SDM. If either seat belt is unfastened, only if an occupant is seated in the front passenger seat, the IPC will illuminate the fasten safety belt indicator for 72 seconds or until the seat belt is fastened. If the seat belt is unfastened within 8 seconds
following the bulb check, the IPC sends a message requesting 5 chimes to sound. |
