Hcu/TCU upgrade ? for 100 mesh solenoid equipped hybrid transmissions
Kia technical service bulletin TSBTRA059R2 for 2011-2016 Kia Optima Hybrid.
- Bulletin number
- TSBTRA059R2
- Component
- Electrical system: software
- Summary
- TSB:HCU/TCU UPGRADE ? FOR 100 MESH SOLENOID EQUIPPED HYBRID TRANSMISSIONS - This bulletin provides information related to a software upgrade of the Hybrid Control Unit (HCU) and the Transmission Control Unit (TCU) of some 2011~2016MY Optima Hybrid (TF HEV) after replacement of the transmission with improved 100 mesh solenoids has taken place. To apply the improved logic, the HCU/TCU should be reprogrammed using the GDS/KDS download, as described in this bulletin.
Owners of these vehicles have filed 65 complaints in the electrical category.
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