TSB Document:

Affected Component: ELECTRICAL SYSTEM

Summary
TCU & HCU UPDATE – 2011~15 MY SONATA HYBRID (YF HEV) Description: This bulletin provides information related to the TCU and HCU software update for certain 2011~15 Sonata Hybrid (YF-HEV) vehicles with improved 100 mesh solenoids. These updates must be performed for the part numbers shown below only after the transmission has been replaced. If the update is not completed, the transmission may experience a small shift flare or delayed shift.

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Date Published
APR 01, 2016
NHTSA TSB #
10076423
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