NHTSA ID Number: 10244998
Manufacturer Communication Number: No. 2322.1
TSB/Document Date: 2023-11-07
Summary
Instructions on advanced technical information for BOSE poor sound quality.
Bulletin #: 2322.1
Advanced Technical Information
Part ID: 9141
9
BOSE Poor Sound Quality
Vehicles Affected
Models
Model Year
Model Type
VIN Range
Vehicle-Specific Equipment
911
As of 2022 up to 2024
992
N/A
9VL (BOSE® Surround Sound System)
Revision History
Revision
Release Date
Changes
0
September 26, 2023
Original document
1
October 6, 2023
Update of Technical Background & Service Information
Condition
Customer complains of a scratching or roaring from the front door panel.
Technical Background
Due to a manufacturing error, there are too tight tolerances in the front door speaker (BOSE) causing poor sound
quality. To prevent the roaring or scratching noises from the speaker, it is advised to have the setting “Linear” turned
on within the sound system settings of the PCM.
AfterSales
Oct 6, 2023
Page 1 of 2
9
Bulletin #: 2322.1
Advanced Technical Information
Part ID: 9141
Service Information
1.
2.
3.
4.
Verify the sound system is BOSE.
Using GFF, verify the concern is isolated to the specified conditions described above.
Under sound system settings, turn on “Linear” by having the box checked off (Reference Figure 1).
Check sound quality of audio system.
This ATI will be updated once a hardware and software solution has been released.
Figure 1 - BOSE settings
Search Items
992, 911, Bose, Sound, Audio
Important Notice: Technical Bulletins issued by Porsche
Cars North America, Inc. are intended only for use by professional automotive technicians who have attended Porsche service training courses. They are
written to inform those technicians of conditions that may occur on some Porsche vehicles, or to provide information that could assist in the proper servicing of a vehicle. Porsche special tools may be necessary in
order to perform certain operations identified in these bulletins. Use of tools and procedures other than those Porsche recommends in these bulletins may be detrimental to the safe operation of your vehicle, and
may endanger the people working on it. Properly trained Porsche technicians have the equipment, tools, safety instructions, and know-how to do the job properly and safely. Part numbers listed in these bulletins
are for reference only. The work procedures updated electronically in the Porsche PIWIS diagnostic and testing device take precedence and, in the event of a discrepancy, the work procedures in the PIWIS Tester
are the ones that must be followed.
E15680
©2023 Porsche Cars North America, Inc.
AfterSales
Oct 6, 2023
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TSB/Document ID: No. 2322.1
Replacement Service Bulletin Number:
MFR Communication Date: 2023-10-06
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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