Campaign SA055 - Hill-Hold Assist Upgrade
GROUP ChassisNUMBER 028 [rev 2]
MODEL 2011 Sorento (XM) with A/T
DATE October 2010
SUBJECT:
2011 MY SORENTO WITH A/T HECU UPGRADE HILL ASSIST CONTROL SYSTEM IMPROVEMENT COMBINED TSB/SERVICE ACTION (SA055)
This bulletin provides the procedure to upgrade the Hill Assist Control Logic of some 2011 Model Year Sorento (XM) vehicles equipped with automatic transaxle produced prior to August 18, 2010. Some customers may complain of a minor hesitation/delay during uphill operation when stopped. This improved software Logic should reduce complaints related to Hill Assist Control functions.
The Hill Assist Control (HAC) prevents the vehicle from rolling back by applying the brakes automatically for about 2 seconds or can be released by applying the accelerator pedal more than 5%.
Key performance changes are as follows in the Hill-hold Assist Control system:
- Operative condition: Gradient of slope (8% --> 10%) (only will engage on steeper inclines)
- Inoperative condition: Accel position (10% --> 5%) (decreased free play in APS logic percentage). For confirmation that the latest re-flash has been performed to a vehicle you are working on verify ROM ID using the tables in this TSB.
For vehicles not in affected VIN list, but with a customer complaint, perform the following repair instructions outlined in this bulletin and submit a warranty claim per "customer complaint" information.
Global Diagnostic System (GDS)
NOTICE
A Service Action is a repair program without customer notification that is performed during the warranty period. Any dealer requesting to perform this repair outside the warranty period will require DPSM approval.
Repair status for a VIN is provided on WebDCS (Service > Warranty Coverage > Warranty Coverage Inquiry > Campaign Information). Not completed Recall/Service Action reports are available on WebDCS (Consumer Affairs > Not Completed Recall > Recall VIN > Select Report), which includes a list of affected vehicles.
This issue number is SA055.
NOTICE
To verify the vehicle is affected, be sure to check the version of the vehicle's control unit ROM ID with references to the ROM ID Information Table shown below 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.
UPGRADE EVENT NAME
NOTICE
^ A fully charged battery is necessary before HECU upgrade can take place. DO NOT connect a battery charger to the vehicle during HECU upgrade. Make sure the blower motor is "OFF" during HECU upgrade.
^ All HECU 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 HECU upgrade procedure.
^ DO NOT start the engine during HECU upgrade.
^ DO NOT turn the ignition key "OFF" or interrupt the power supply during HECU upgrade.
^ When the HECU upgrade is completed, turn the ignition "OFF" and wait 20 seconds before starting the engine.
^ ONLY use approved HECU upgrade software designated for the correct model, year.
ROM Table Information
To verify the vehicle is affected, be sure to check the Calibration Identification of the vehicle's HECU ROM ID and reference the Information Table as necessary.
1. Connect the power supply cable to the GDS tool.
NOTICE
If attempting to perform the HECU upgrade with the power supply cable disconnected from the GDS tool, be sure to check that the GDS tool is fully charged before HECU upgrade. If the GDS tool is not fully charged, failure to perform the HECU upgrade may occur. Therefore, it is strongly recommended that the power supply connector be connected to the GDS tool.
2. Connect the USB cable between the VCI and the GDS tool.
NOTICE
When performing the HECU upgrade using the GDS tool, wireless communication between the VCI and GDS tool is not available. Therefore, be sure to connect the USB cable between the VCI and the GDS tool.
3. Connect the Main 16-pin DLC cable (GHDM - 241000) to the OBD-II connector, located under the driver's side of the instrument panel.
4. Connect the Main 16-pin DLC cable (GHDM - 241000) to the OBD-II connector, located under the driver's side of the instrument panel.
5. With the ignition key ON, turn ON the VCI and GDS tool. Access the GDS Vehicle Identification Number (VIN) Screen and configure the vehicle using the VIN AUTO DETECT Function.
6. Once back at the GDS Main Screen, select HECU Upgrade from the bottom right-hand corner. Next select Auto Mode, and then Engine. Perform the HECU upgrade in accordance with normal GDS tool HECU upgrade procedures.
NOTICE
Do NOT attempt to perform a Manual Mode upgrade unless Auto Mode fails. Always follow the instructions given on the GDS tool either Auto or Manual mode. See table for Manual Mode passwords.
MANUAL HECU UPGRADE PASSWORD
7. When the GDS tool reports that the HECU upgrade has been successfully completed, click OK, turn OFF the ignition key and wait at least 10 seconds before attempting to start the engine.
8. Check for Diagnostic Trouble Codes using the GDS and erase any DTCs stored such as ESC, and TPMS. Due to CAN BUS multiple DTC's maybe set during reprogramming.
AFFECTED PRODUCTION RANGE
SERVICE ACTION WARRANTY CLAIM INFORMATION:
Standard Warranty Claim Information:
Use this information only to file a warranty claim for vehicles for which:
1. A customer complains of the same concern.
2. The VIN does not appear on the Affected Vehicles List for Service Action SA055
3. The vehicle model year and production date range are as identified in this bulletin.
STANDARD TSB WARRANTY CLAIM INFORMATION
*NOTICE
VIN Inquiry data for this repair is provided for tracking purposes only. Kia retailers should reference SA055 when accessing the WebDCS system.