2.4L shift quality & wake-up logic improvement (SA316A)
Kia technical service bulletin TSBENG177A for 2018 Kia Optima.
- Bulletin number
- TSBENG177A
- Component
- Power train
- Summary
- TSB - SERVICE ACTION: 2.4L SHIFT QUALITY & WAKE-UP LOGIC IMPROVEMENT (SA316A) - This bulletin provides the procedure to improve the logic of the Electronic Control Unit (ECU) and Transmission Control Unit (TCU) on some 2018MY Optima (JFa) 2.4L vehicles, produced from April 18, 2017 through September 7, 2017, which may experience an extended crank and/or a shift quality concern, such as a hard downshift, upshift, and/or shift delay.
Owners of these vehicles have filed 19 complaints in the transmission category.
Vehicles covered
- Kia Optima 2018 2018
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