2021-2023 Kia Transmission Fluid Application Guide TSB TRA046

Kia has issued Technical Service Bulletin (TSB) TRA046 (Rev 3) to provide essential information regarding transmission fluid application for a wide range of its 2021-2023 models. This bulletin is critical for ensuring the longevity and proper functioning of your vehicle's transmission. For instance, if you own a Kia Sportage, transmission fluid specifications are precisely detailed to prevent potential issues.

The TSB highlights that using the correct transmission fluid type and fill quantity is paramount. It also specifies when a transmission flush is required, primarily when a transmission unit is replaced. Owners and technicians should refer to this guide to avoid costly repairs and maintain warranty coverage.

Symptoms of Incorrect Transmission Fluid

While this TSB does not list specific symptoms, it explicitly warns that the "incorrect fluid can result in damage to the transmission." This damage may manifest as:

• Shifting problems, such as harsh or delayed shifts.
• Overheating of the transmission.
• Unusual noises coming from the transmission.
• Reduced fuel efficiency.
• Complete transmission failure over time.

Such damage is not covered under warranty if it results from using the wrong fluid, potentially leading to significant out-of-pocket expenses for the owner. Therefore, ensuring the correct Kia Sportage transmission fluid is used is vital.

Fault Codes / DTCs

This Technical Service Bulletin, TRA046 (Rev 3), does not list any specific Diagnostic Trouble Codes (DTCs). The primary focus of the document is on preventative maintenance and the correct application of transmission fluids rather than diagnosing existing fault codes. However, using the incorrect fluid could eventually lead to various transmission-related DTCs due to mechanical damage.

What the Service Bulletin Says

TSB TRA046 (Rev 3) serves as a comprehensive guide for identifying the correct transmission fluid type and fill quantity for each Kia model from 2005 to 2023. It emphasizes the critical importance of using the manufacturer-specified fluid to prevent transmission damage. The bulletin specifies that a transmission flush is only required when a transmission unit is replaced.

The document provides detailed charts listing various fluid types, such as Kia ATF SP-IV, Kia ATF SP4M-1, Kia ATF SP-III, SAE 75W/85 API GL-4, Kia SP-CVT1, and many others, along with their corresponding part numbers (e.g., UM013 CH059, UM022 CH269, UM010 CH002, UM090 CH036, UM015 CH080, UM018 CH130, UM020 CH266, UM020 CH264, UM014 CH065, UM020 CH240). It also includes fill capacities and maximum approved order quantities. For specific check and fill procedures, the bulletin directs technicians to consult the shop manual on KGIS.

What to Do

If you own a 2021-2023 Kia model, it is crucial to ensure that your vehicle's transmission fluid is correct. If you are experiencing any transmission issues or are due for a fluid change, consult with a certified Kia service technician. Provide them with this TSB number, TRA046 (Rev 3), to ensure they refer to the most current and accurate information regarding your specific model's transmission fluid requirements. Do not attempt to use aftermarket fluids without verifying their compatibility, as using the incorrect fluid can result in damage to the transmission that may not be covered by your warranty.

Source: NHTSA ID 10226555