March 15, 2016 Service bulletin

ECU upgrade MIL on with DTC C1356

Kia technical service bulletin TSBCHA067 for 2014-2016 Kia Optima Hybrid.

Bulletin number: TSBCHA067
Component: Electrical system
Summary: Tsb: ecu upgrade mil on with dtc c1356 - this bulletin provides information related to an ibau (integrated brake actuation unit) software upgrade for some 2014~2016my optima hybrid (tf hev) vehicles, produced from december 2, 2013 through july 22, 2015, which may exhibit a malfunction indicator light (mil) on with dtc c1356 and no drivability concerns. To resolve the concern, reprogram the ibau using the gds/kds download, as described in this bulletin. For confirmation that the latest reflash has been performed, verify rom id using the tables in this tsb.

Owners of these vehicles have filed 17 complaints in the electrical category.

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