Volvo Car USA LLC

Quality Bulletin

Bulletin Title

Group

NO

Courtesy Upgrade C10346 Vehicle Computational Unit (VCU2),
Model Year 2025 EX90 vehicles

36

C10346

Issuer (Dept.)

Car Market

Issue Date

Status Date

Product, Safety and Compliance

United States and Canada

2/19/26

2/21/26

Revisions

A.
B.
C.
D.
E.
F.
G.
H.
A.

2

Page

Page 1 of 3

COURTESY UPGRADE C10346 DESCRIPTION
VEHICLES INVOLVED
PARTS INFORMATION/PARTS RETURN
VEHICLES IN RETAILER INVENTORY
OWNER NOTIFICATION
RETAILER RESPONSIBILITY
TECHNICAL COMPETENCY REQUIREMENT
REIMBURSEMENT PROCEDURES & RETAILER ALLOWANCE
COURTESY UPGRADE C10346 DESCRIPTION
Volvo Car USA LLC and Volvo Car Canada LTD on behalf of the Volvo Car Corporation, has
decided to launch a Courtesy Upgrade on model year 2025 EX90 vehicles.
Courtesy Upgrade C10346 includes updating the Vehicle Computational Unit (VCU2) to prepare
for future EX90 functional growth with an improved core computer.
The corrective action is to replace the VCU2 by following the below steps:
NOTE – It is very important that the procedures outlined below are followed in order and
THE SAME LAPTOP/COMPUTER HAS TO BE USED FOR THE ENTIRE PROCESS!

1. Prior to starting check ODO and Service time/distance. Note this.
2. Connect the car to VIDA, perform a readout and check network topology and make sure
ECUs are responding.
3. NOTE, VERY IMPORTANT STEP: Order and Download Read Data VCU (SP 32425184),
old VCU is still connected in this step.
4. Release cooling system pressure.
5. Disconnect both 12V batteries according to VIDA and replace VCU according to
instruction.
6. Connect the 12 V batteries and connect charger to both.
7. Connect car, enter VIN manually in pop-up window and do a new readout.
8. Order and Download VCU retrofit (SP 32464025).
9. Check network topology and make sure ECUs are responding.
10. Order and Download Total Upgrade (SP 32425147). (This part will take around 1h)
11. Order and Download HPB sync Retrofit (SP 32425186).
12. Fill and bleed coolant system according to VIDA method.
13. Run isolation test.
14. If the vehicle is without air suspension - Perform calibration and Headlamp adjustment.
15. Check ODO, Service time/distance. Car might need to be driven a few meters to show
Service time/distance. Confirm the information matches from step 1.
16. If there are remaining camera calibration issues after the replacement is done, please
contact technical helpdesk.
Make sure the vehicle is returned in best order e.g any other outstanding QB on the vehicle should
be perform as well.

Quality Bulletin C10346
B.

VEHICLES INVOLVED
NOTE:

RETAILERS MUST CONFIRM VEHICLE ELIGIBILITY PRIOR TO BEGINNING
THIS COURTESY UPGRADE.

Vehcle elgblty must be confirmed in TIE:
•

Vehicle eligibility can be confirmed in TIE using the “Vehicle Info” tab and entering
the VIN. Please use the “Claim Type” button to see if C10346 is available and use
the performed column to see if the vehicle is eligible.

All vehicles must be checked for any incomplete recalls, service campaigns, or service actions.
All open recalls, services campaigns or service action repairs must be completed prior to
customer delivery. If you have any questions concerning this Courtesy upgrade, please send
them to [email protected].
C.

PARTS INFORMATION / PARTS RETURN
Please refer to the parts bulletin for parts information.

D.

VEHICLES IN RETAILER INVENTORY
Vehicles in retailer inventory must be completed prior to sale. Please confirm vehicle eligibility
first.

E.

OWNER NOTIFICATION
In the coming weeks, customers will begin receiving communications via email and in-app
notifications from us confirming that the upgrade is available.

F.

RETAILER RESPONSIBILITY
Retailers are to perform this courtesy upgrade on eligible vehicles regardless of mileage/
kilometers or vehicle age. The work covered under Courtesy Upgrade C10346 is free of
charge to the owner.

G.

TECHNICIAN COMPETENCY REQUIREMENT
The technician’s competency requirement for this campaign repair will be G1.

Page 2 of 3

2026-02-21

Quality Bulletin C10346
H.

REIMBURSEMENT PROCEDURES & RETAILER ALLOWANCE
Courtesy Upgrade C10346 claims should be submitted using the LONG FORM application
only.
Claim Type:
CSC Code:
Cause Code:
Main OP:
Failed Part:

C10346
XW
02
97593-2
36013403 (VCU Exch.)

VCU Replacement – To be used on all cars
Operation Number
97593-2

Repair Description
Vehicle Computational Unit VCU
replace acc. To QB

Qty
1

Labor Time
2.0

Qty
1

Labor Time
0.1

Qty
1

Labor Time
0.2

**Calibration – Only for cars without Air Suspension
Operation Number
97594-3

Repair Description
Calibration with VIDA acc. To QB

**Total Upgrade – Only for cars below SW 1.4.12
Operation Number
99943-3

Repair Description
Software downloading acc. To QB

Page 3 of 3