Sorento 4WD V6-3.5L (2011)
Traction Control Module: All Technical Service Bulletins
ABS/TCS - ECS Software Upgrade For Hill Assist System
GROUP CHASSIS
MODEL 2011MY SORENTO (XM)
NUMBER 026
DATE JULY 2010
SUBJECT:
2011MY SORENTO (XM) M/T HECU SOFTWARE UPGRADE
This bulletin provides information related to a Electronic Stability Control (ESC) software upgrade available for some 2011 MY Sorento (XM) vehicles
with manual transmission built from October 23, 2009 to March 30, 2010. This software upgrade will correct a concern which may cause the HAC
(Hill-start Assist Control) to not operate when the manual transmission lever is placed into Reverse.
Kia recommends that vehicles with this concern receive this software upgrade to allow the ABS HECU to properly apply the HAC function when the
vehicle is in Reverse.
NOTICE
To verify the vehicle is affected, be sure to check the version of the vehicle's control unit ROM ID with reference to the ROM ID Information Table
shown in this bulletin before attempting to upgrade the control unit software.
To correct this condition, the ECM should be reprogrammed using the GDS download as described in this bulletin.
Service Procedure
UPGRADE EVENT NAME
NOTICE
^ A fully charged battery is necessary before ECU upgrade can take place. DO NOT connect a battery charger to the vehicle during ECU upgrade. Make
sure the blower motor is "OFF" during ECU upgrade.
^ All ECU upgrades must be done with the ignition key in the "ON" position.
^ Be careful not to disconnect any cables connected to the vehicle or GDS during the ECU upgrade procedure.
^ DO NOT start the engine during ECU upgrade.
^ DO NOT turn the ignition key "OFF" or interrupt the power supply during ECU upgrade.
^ When the ECU upgrade is completed, turn the ignition key "OFF" and wait 20 seconds before starting the engine.
^ ONLY use approved ECU upgrade software designated for the correct model, year and engine size. Failure to do so may create other driveability
issues due to the use of the incorrect ECM/PCM calibration.
