File in Section:
Bulletin No.:

Service Bulletin

Date:

17-NA-010
January, 2019

TECHNICAL
Subject:

Passenger Seat Airbag Warning Message On - DTC B0074 or B101D Set

Brand:

Model:

Chevrolet

Model Year:

VIN:

from

to

Impala
(VIN 1)

2014

2016

Impala

2017

2018

from

to

Engine:

Transmission:

Involved Region or Country

North America, Korea, Middle East, Israel

Condition

Some customers may comment that the Service Airbag Warning Message is on.
The technician may find one of the following DTCs set:
• B0074: Passenger Presence Sensor Circuit Malfunction set in the Passenger
Presence Module
• B101D: Electronic Control Unit Hardware set in the Passenger Presence Module

Cause

This may be caused by the Passenger Presence System (PPS) sensor mat becoming
loose or disengaged with seat usage over time.

Correction

4769349

Important: DO NOT open the felt (1) used covering the electrical connectors.
If DTC B0074 or B101D is set, then the technician should proceed to replace the Sensor
Mat and Passenger Presence System Module.

Service Procedure
Important: When servicing DTC B0074 or B101D,
ensure that the Passenger Presence Sensor Mat tail is
correctly routed as shown in this bulletin.

Copyright 2019 General Motors LLC. All Rights Reserved.

1. Remove the passenger side seat. Refer to Driver
or Passenger Seat Removal and Installation in SI.
2. Disconnect the electrical connectors, remove the
seat cushion, and de-trim the cushion. Refer to
Front Seat Cushion Cover and Pad Replacement
in SI.

Page 2

January, 2019

Bulletin No.: 17-NA-010

4769349

3. Using care, insert the PPS sensor mat pigtail (3)
back through the foam opening making sure not to
bend the sensor.
4. Install the cushion onto the seat frame.
• The sensor tail must be routed through the rear
suspension opening below the seat frame (2)
hanging freely.
• Validate the wiring harness (3) has proper
movement.

4920551

Note: The graphic above depicts the incorrect pigtail
harness route (1) and the correct pigtail harness route
after repair (2).
5. Reconnect all electrical connectors and install the
trim cover.
6. Install the passenger side seat.

7. Check the PPS Module for any DTCs in history
status and clear DTC.
8. Perform the Passenger Presence System Preload
Test (PPS Setup). Refer to Passenger Presence
System Preload Test (PPS Setup) in SI.

Bulletin No.: 17-NA-010

January, 2019

Page 3

Parts Information
Causal
Part

Description

Part
Number

Qty

X

Sensor Kit, Airbag
Front Passenger
Presence

23313742

1

X

Sensor Kit, Airbag
Front Passenger
Presence

23313743

1

X

MODULE,
AIRBAG FRT
PASS
PRESENCE

23101685

1

Warranty Information
For vehicles repaired under warranty, use:
Labor
Operation

Description

Labor Time

6450910

Airbag Front Passenger
Presence Module
Replacement

6450950

Airbag Front Passenger
Presence Sensor
Replacement

Use
Published
Labor
Operation
Time

Version

4

Modified

April 19, 2017 – Updated the Cause, Correction and Service Procedure.
December 13, 2017 – Added the 2018 Model Year, updated the Service Procedure
section and Warranty statement.
January 02, 2019 – Updated the Correction, Service Procedure and Warranty Information
sections and added Parts Information.

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these
technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper
service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a
job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your
vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the
information.

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