Hyundai TSB #TSB-10-01-023

2009 Hyundai Sonata

Affected Component: ELECTRICAL SYSTEM:SOFTWARE

Date Published: JUN 01, 2010
NHTSA TSB #: 10034491

Sorry, the NHTSA has not posted this TSB document yet.

You can still get the detailed info from Hyundai for this TSB. Call your local Hyundai dealer's service department & ask for a copy of TSB# TSB-10-01-023.

Summary: HYUNDAI: AUTOMATIC TRANSAXLE ECM AND TCM UPDATE. PROVIDES A PROCEDURE TO UPDATE THE ECM AND TCM SOFTWARE TO THE MOST RECENT VERSIONS TO REVISE-ACCELERATION FEEL FROM A STOP OR BELOW 15MPH; SHIFT QUALITY WHEN DECELERATING TO A STOP AT ABOUT 30MPH WHEN THE ATF IS COLD. *PE