Kia K5 2025 — technical service bulletin
Bulletin TSB_TRA115 · NHTSA communication 11023285 · issued Sep 19, 2025
Technical service bulletin
communication type
Power Train
component
2025
model years
1
vehicle entries
Official summary
TECHNICAL SERVICE BULLETIN: SERVICE ACTION: 8-SPEED TRANSMISSION GEAR SHIFT LOGIC IMPROVEMENT (SA630) - This bulletin provides information to upgrade the automatic transmission software on certain 2025MY K5 (DL3) vehicles equipped with a Theta III 2.5L GDI produced from February 20, 2024 through April 23, 2025, which may exhibit abnormal roughness or hesitation during gear shifts. Follow the procedure outlined in this publication to upgrade the software logic of the automatic transmission ‘AT’ system to improve shift response during acceleration.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.