NHTSA ID Number: 11021986
Manufacturer Communication Number: SC345_OWNR_CV
TSB/Document Date: 2025-08-20
Summary
VOLUNTARY SERVICE CAMPAIGN: OWNER NOTIFICATION (SC345) - This document is the owner notification advising that Kia
is conducting a Voluntary Service Campaign to replace the gear oil in the front motor and gear reduction assembly, and fill it to the factory-specified amount in certain 2023-2024MY EV6 vehicles, manufactured from December 14, 2022 through February 22, 2024.
Kia
America, Inc.
Corporate Headquarters
111 Peters Canyon Road, Irvine, CA 92606-1790 USA
VOLUNTARY SERVICE CAMPAIGN
August 22, 2025
Dear Kia
EV6 Vehicle Owner:
Kia
America, Inc. is conducting a Voluntary Service Campaign to replace the gear oil in the front motor and reduction gear
assembly in certain 2023-2024 MY EV6 vehicles. Our records indicate that you own or lease one of the potentially affected
vehicles.
Why is Kia
Conducting This Service Campaign?
During the production of your vehicle, the amount of gear oil in the front motor and reduction gear assembly may have been
filled below factory specification. If the gear oil level is lower than Kia
’s factory specifications, your vehicle may eventually
produce a grinding or whining noise from the front of the vehicle while driving.
What Will Kia
Do?
Kia
dealers will replace the gear oil in the front motor and gear reduction assembly and fill it to the factory-specified amount.
This campaign will be performed free of charge at no cost to you.
What Should You Do?
WARNING: If the gear oil level is low, you may experience a grinding or whining gear noise from the front of the
vehicle while driving.
Please contact your Kia
dealer to schedule a service appointment at your earliest convenience. The time required to
perform the campaign can vary depending on the dealer’s work schedule, so a service appointment is an important way
of minimizing your inconvenience. Please present this notice when you arrive at the Kia
dealer.
To find your nearest dealer, visit www.kia.com and click the “Find Dealer” button in the upper right corner (“Dealers” on a
mobile device).
You can also use the QR code below with your mobile device to access this information (see the bottom
of this letter for more information about QR code use):
Have You Changed Your Address Or Sold Your Kia
?
If you have changed your home address, sold your Kia
vehicle, or no longer own your vehicle, please complete the attached
prepaid “Change of Address/Ownership” card and mail it to us.
What If You Have Other Questions?
Should you have any questions regarding this Voluntary Service Campaign, or your dealer does not respond to your service
request in a timely manner, we suggest that you call Kia
’s Customer Care Center at 1-800-333-4542 (Monday through Friday,
5AM to 6PM, Pacific Time), or visit https://customercare.kiausa.com.
Please accept our apologies for any inconvenience this situation may cause you.
Sincerely,
Customer Care Department
QR Code Use:
A QR Code is a square, 2-dimensional barcode that can be read by mobile devices loaded with an appropriate barcode or QR Code Reader App. The app reads the barcode
image and then launches/uploads the specific information the code contains, such as URLs, text, photos, videos.
With a mobile device, download a QR Code Reader App. With many devices, you can do this through an app store or marketplace.
Open the QR Code Reader App on your mobile device. The app will utilize your device’s camera. Center the code in the camera viewing area. With some apps, the URL
or other information will automatically load when the code is recognized. For others, you may have to snap or take a picture of the QR code. Refer to the QR Reader Code
App instructions.
SC345
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TSB/Document ID: SC345_OWNR_CV
Replacement Service Bulletin Number:
MFR Communication Date: 2025-08-22
MFR Internal Campaign ID/Software Version: SC345
Communication Type: Service Campaign
NHTSA Components: POWER TRAIN
MFR Component System:
MFR Component Subsystem:
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