NHTSA ID Number: 10108637
Manufacturer Communication Number: 16-NA-145
Summary
This technical bulletin provides a procedure to replace the front passenger presence sensor to correct a customer concern on a service airbag light illuminated, the service airbag system message on the DIC, passenger airbag status indicator display OFF and DTC B0074 and B0081 set caused by an open or high resistance in the seat pad printed circuit.
5 Affected Products
Vehicle
BUICK | VERANO | 2012-2016 |
SEOCONTENT-START
Bulletin No.: 16-NA-145
Date: May, 2016
| Subject: | Service Airbag Light Illuminated and B0074 (0D or 0E) DTC Set |
| Brand: | Model: | Model Year: | VIN: | Engine:
| Transmission:
| ||
|---|---|---|---|---|---|---|---|
| from | to | from | to | ||||
| Buick |
Verano | 2012 | 2016 | All | All | ||
| Involved Region or Country | North America, China |
| Condition | Some customers may comment on a Service Airbag Light illuminated, the Service Airbag System message on the DIC, and observe the Passenger Airbag Status Indicator display OFF.
During diagnosis a technician may find DTC B0074 (0D or 0E) set within the Passenger Presence System (PPS) module. In conjunction with this DTC, B0081 (00) will be set current in the Sensing and Diagnostic Module (SDM). Upon inspection of the sensor after trim removal, the technician may find a sharp crease in the passenger presence sensor in the area where the sensor tail exits through to the bottom of the seat cushion assembly. |
| Cause | This crease may be caused during the seat trim hog-ringing operation by pinching the sensor tail between the cushion pad and the trim’s tiedown feature. In some instances, the harness pigtail is not fully pulled through the seat pad increasing the opportunity to have it get trapped between the trim tiedown feature and cushion pad. After customer ingress, egress and knee-loading of the seat, flexing of the sensor mat at this tail area crease may cause an open or high resistance in the printed circuit. |
Correction
If you encounter a vehicle with the above concern replace the front passenger presence sensor. Refer to Airbag Front Passenger Presence Sensor Replacement in SI.
Note: Crease observed in tail area from top side.
Note: Crease observed in tail area from bottom side.
Note: Sensor tail observed trapped between seat trim tiedown feature and cushion pad.
| (1) | Sensor Tail |
| (2) | Loose Sensor Mat |
Important: The service kit sensor mat may have come loose from the cushion pad during shipping of the service kit. If this is observed, re-center the mat on the cushion pad and using the palm of the hand, apply light pressure to re-adhere the sensor to the pad assembly taking care to not create any folds or creases in the mat or sensor tail. Once trim is re-installed, the sensor mat will retain it’s position.
Important: When reassembling the seat, take great care to not create a crease in the tail of the passenger presence sensor as shown above.
Important: Be sure to inspect the sensor tail area of the new service part to ensure no creases or other damage exists.
Important: Ensure that the sensor harness pigtail is fully pulled through the foam and snug against the seat pad to ensure customer does not have a repeated issue with the sharp crease in the sensor tail.
Important: Ensure the sensor pigtail is fully pulled through the seat pad. The white felt patch on the harness should start to be seen below the surface of the pad.
Important: Ensure not to pinch the sensor tail in the process of hog-ringing the trim to the cushion pad. When using the hog-ring gun, fold the trim to the right (inboard) side and apply the 4 (four) hog-rings located in the center trench in the direction away from the sensor tail (hog-ring gun aimed towards in-board side of cushion pad).
Warranty Information
| Labor Operation | Description | Labor Time |
| 6450950 | Airbag Front Passenger Presence Sensor Replacement | Use Published Labor Operation Time |
| Version | 2 |
| Modified | May 16, 2016 — Updated Warranty Information with different labor operation. |
SEOCONTENT-END
Bulletin No.: 16-NA-145
Date: May, 2016
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