NHTSA ID Number: 11020442
Manufacturer Communication Number: 37333
TSB/Document Date: 2025-07-08
Summary
This is a Technical Journal: Subwoofer Poor Sound. If experiencing a disturbing noise when playing music with powerful base, reffering to TJ_37333_1.mp4 in attachment, please follow the attached instruction "TJI-531549-1_1_2".
Volvo
Car USA LLC
Technical Journal
Technical Journal Title
Ref. No.
Subwoofer Poor Sound
TJ 37333.1.1
Issuer (Dept.)
Issue Date
Status Date
3/31/25
4/15/25
Technical Service
Car Market
Partner
Function Group
United States and Canada
3 US 7510 Volvo Car USA
3956
Function Description
Page
Power amplifier; high-power cables
Page 1 of 6
Attachment
File Name
File Size
TJI-531549-1_1_2_en-US.pdf
1.0525 MB
TJ_37333_1.mp4
18.421 MB
Rows beginning with * are modified
Note! If using a printed copy of this Technical Journal, first check for the latest online version.
DESCRIPTION:
If the customer complains on disturbing noise from the rear/luggage compartment of the vehicle
when playing music with powerful bass, follow advice under “Service”.
This TJ only concern vehicles with Audio level:
VDN code: K502 - AUDIO SYSTEM Audio level 2 (BOSE)
VDN code: K503 - AUDIO SYSTEM Audio level 3 (Bowers & Wilkins)
CSC Customer Symptom Codes
Code
Description
FW
Speakers/Crackly sound
FX
Speakers/Muffled sound
FY
Speakers/Distorted sound
DTC Diagnostic Trouble Codes
Vehicle Type
Type
Eng
356
Eng
Desc
Sales
Body
Gear
Steer
Model Year
2025-9999
Plant
Chassis range
Struc Week
Range
-
202417-999952
SERVICE:
If experiencing a disturbing noise when playing music with powerful bass, reffering to TJ_37333_1.
mp4 in attachment, please follow the attached instruction “TJI-531549-1_1_2”.
Technical Journal 37333.1.1
Warranty claim info:
To get a warranty claim accepted for a job described in this TJ, use the corresponding VST OP
number stated in this TJ.
Note that the TJ number must be stated in the repair order text.
VST Operation Number
VST Operation Number
Description
98782-2
Subwoofer luggage compartment adjust acc. to TJ
VEHICLE REPORT:
Yes, please submit a Vehicle Report if the service solution described in this TJ has no effect. Use
concern area “Vehicle Report” and sub concern area “Support needed”, use function group 3956.
To view TJ attachment continue to next page. This TJ has one attachment and
one sound file.
Page 2 of 6
2025-04-15
Volvo Car Customer Service
Title
Subwoofer
Action
Issue
1
TJ Instruction VCC-531549-1
Adjustment
Date
2025-02
Reason
First issue
Affected vehicles
Model year Model
2025, 2026 EX90
Materials
Tape
Qty.
1
Materials
Part No.
31424536
Notes
Page
1(4)
Operation number:
98782-2
TJ Instruction VCC-531549-1
Page 2 ( 4 )
Color symbols
Note! This colour chart displays (in colour
print and electronic version) the importance
of the different colours used in the images
of the method steps.
1 . Used for focused component, the
component with which you will do
something.
2 . Used as extra colors when you need to show
or differentiate additional parts.
3 . Used for attachments that are to be
removed/installed. May be screws, clips,
connectors, etc.
4 . Used when the component is not fully
removed from the vehicle but only hung to
the side.
5 . Used for standard tools and special tools.
6 . Used as background color for vehicle
components.
Removal
Loosen the component indicated. Do not
remove it.
TJ Instruction VCC-531549-1
Page 3 ( 4 )
Note! The number of connectors may vary
depending on the vehicle's equipment level.
Disconnect the connectors.
Remove the panel.
Remove the screw.
Loosen the clip.
Loosen the marked detail.
Torque:
M6 , 10 Nm
TJ Instruction VCC-531549-1
Page 4 ( 4 )
Note! Fold the marked component properly
around the edge.
Apply tape.
Use: Tape , 31424536
Apply tape.
Use: Tape , 31424536
Installation
Reinstall the removed parts in reverse order.
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TSB/Document ID: 37333
Replacement Service Bulletin Number:
MFR Communication Date: 2025-04-16
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: UNKNOWN OR OTHER
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
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