Kia Carnival 2023 — technical service bulletin
Bulletin TSB_ELE267 · NHTSA communication 10220345 · issued Sep 20, 2022
Technical service bulletin
communication type
Electrical System
component
2023
model years
1
vehicle entries
Official summary
TECHNICAL SERVICE BULLETIN: SERVICE ACTION: 3.5L GDI ECM LOGIC IMPROVEMENT (SA508) - This bulletin provides the procedure to update the software logic of the Engine Control Module (ECM) on some 2023MY Carnival (KA4) vehicles produced from March 24, 2022 through July 14, 2022, that may experience a temporary, lower than expected engine speed while decelerating or idling, while applying torque converter dampening.
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.