NHTSA ID Number: 11012902
Manufacturer Communication Number: SC322_TSB
TSB/Document Date: 2025-01-16
Summary
VOLUNTARY EMISSIONS SERVICE CAMPAIGN: HYBRID
CONTROL UNIT (HCU) LOGIC IMPROVEMENT (SC322) - This bulletin provides the procedure to update the software logic of the Hybrid Control Unit (HCU) system on certain 2023-2025MY Sportage HEV (NQ5 HEV) vehicles produced from February 15, 2022 through July 25, 2024 and Sportage PHEV (NQ5 PHEV) vehicles produced from June 16, 2022 through July 24, 2024. The Hybrid Control Unit (HCU) in the subject vehicles may intermittently receive repeated “accelerate” CAN signals due to a signal processing error involving specific instrument clusters when customers “set” or “resume” cruise control. This concern can occur after the driver rapidly presses the “accelerate” rocker switch on the steering wheel. This does not affect the driver’s ability to pause, cancel or turn off the cruise control function. This condition may cause the vehicle to release air pollutants which exceed Federal and California standards. These standards were established to protect the public health and welfare from the dangers of air pollution.
GROUP
MODEL
Voluntary Emissions
2023-2025MY
Service Campaign
Sportage HEV, PHEV
(NQ5 P/HEV)
NUMBER
DATE
SC322
January 2025
VOLUNTARY EMISSIONS SERVICE CAMPAIGN
SUBJECT:
HYBRID CONTROL UNIT (HCU)
LOGIC IMPROVEMENT (SC322)
This bulletin provides the procedure to update the software logic of the Hybrid Control Unit (HCU) system on
certain 2023-2025MY Sportage HEV (NQ5 HEV) vehicles produced from February 15, 2022 through July 25,
2024 and Sportage PHEV (NQ5 PHEV) vehicles produced from June 16, 2022 through July 24, 2024. The
Hybrid Control Unit (HCU) in the subject vehicles may intermittently receive repeated “accelerate” CAN signals
due to a signal processing error involving specific instrument clusters when customers “set” or “resume” cruise
control. This concern can occur after the driver rapidly presses the “accelerate” rocker switch on the steering
wheel. This does not affect the driver’s ability to pause, cancel or turn off the cruise control function. This
condition may cause the vehicle to release air pollutants which exceed Federal and California standards.
These standards were established to protect the public health and welfare from the dangers of air pollution.
Follow the procedure outlined in this publication to apply the improved logic to the ‘HCULDC’ system using
the KDS ECU Upgrade function as described in this bulletin. Refer to SST081 for software upgrade instructions
using Kia Diagnostic System (KDS) tablet and VCI-II. Before conducting the procedure, verify that the vehicle
is included in the list of affected VINs.
NOTICE
Repair status for a VIN is provided on KDealer+ (Service → Warranty Coverage → Warranty
Coverage Inquiry → Campaign Information). Not completed Recall / Service Action reports are
available on KDealer+ (Consumer Affairs → Not Completed Recall → Recall VIN → Select Report),
which includes a list of affected vehicles.
A printed copy is for reference only; publication information can be updated at any time.
Always refer to KGIS for the latest information. After logging in kdealer.com, the newest technical
publications are listed in ‘Service Releases’ and has the latest service information that has been released.
Page 2 of 6
HYBRID CONTROL UNIT (HCU) LOGIC IMPROVEMENT (SC322)
SUBJECT:
ECU Upgrade Procedure:
To correct this condition, the ECU should be reprogrammed using the KDS
download, as described in this bulletin.
Upgrade Event Name
749.NQ5 (P)HEV HCULDC Upgrade for Cruise Control Operation Logic Improvement
NOTICE
•
Confirm a fully charged battery (12.3 volts or higher is necessary) is used or utilize a fully
charged jump starter box connected to the battery.
•
Ensure the KDS GDS is sufficiently charged at 60% or higher prior to reflash.
•
All ECU upgrades must be performed with the ignition set to the ‘ON’ position unless otherwise
stated.
•
Damaged VCI II units should not be used and promptly replaced.
•
Be careful not to disconnect the VCI-II connected to the vehicle 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 ‘OFF’ and wait 10 seconds before
starting the engine.
•
ONLY use approved ECU upgrade software designated for the correct application.
IMPORTANT
It is recommended to ALWAYS check the Electronic Parts Catalog (EPC) to locate the ECU Part
Number respective to Auto/Manual Mode ROM IDs. DO NOT reference the parts label affixed to
the ECU.
Connect the negative (-) terminal to the battery as shown below.
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: SC322 Sportage HEV, PHEV (NQ5 P/HEV) January 2025
Page 3 of 6
SUBJECT:
HYBRID CONTROL UNIT (HCU) LOGIC IMPROVEMENT (SC322)
ROM ID Information Table:
Upgrade Event #749
IMPORTANT
It is recommended to ALWAYS check the Electronic Parts Catalog (EPC) to locate the ECU Part
Number respective to Auto/Manual Mode ROM IDs. DO NOT reference the parts label affixed to
the ECU.
Model
System
Comment
ECU P/No.
17" 2WD
36600 3DBN0
17"/18" 4WD
36600 3DBN1
19" 4WD
36600 3DAN5
ROM ID
Previous
GNQC2N6HNS0LC720
GNQC2N6HNS1LC720
New
GNQC2N6HNS2LC720
NQ5
HEV
HCU
NQ5
PHEV
GNQC2N6HNS0LC040
GNQC2N6HNS1LC040
GNQC2N6PNS0 C940
GNQC2N6PNS1 C940
GNQC2N6HNS2LC040
GNQC2N6PNS2C940
To verify the vehicle is affected, be sure to check the Calibration Identification of the vehicle's ECM ROM ID
and reference the Information Table as necessary.
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: SC322 Sportage HEV, PHEV (NQ5 P/HEV) January 2025
Page 4 of 6
HYBRID CONTROL UNIT (HCU) LOGIC IMPROVEMENT (SC322)
SUBJECT:
Software Information:
The required software must be installed by selecting
the ‘Auto Mode’ ECU Upgrade option.
Note: In some cases, the ‘Manual Mode’ installation
option may be required ONLY if the ‘Auto Mode’
function fails or is otherwise noted above.
NOTICE
If the automatic upgrade fails, turn the ignition ‘OFF’ for about 10 seconds then place it back in the
‘ON’ position to reset the control unit BEFORE performing the manual upgrade.
‘Manual Mode’ passwords
Menu
Password
NQ5 HEV HCULDC (17inch, 2WD): 36600-3DBN0
4247
NQ5 HEV HCULDC (17~18inch, 4WD): 36600-3DBN1
9843
NQ5 PHEV HCULDC (19inch, 4WD): 36600-3DAN5
2940
UPGRADE EVENT:
Select
the
applicable
‘HCULDC’
‘system’
module and ‘Event Group’ number in the ECU
Upgrade.
•
749.NQ5 (P)HEV HCULDC Upgrade
for Cruise Control Operation Logic
Improvement
Verify
the
affected
vehicle
Calibration
Identification of the applicable ECU ROM ID and
reference the Information Table on page 3 as
necessary.
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: SC322 Sportage HEV, PHEV (NQ5 P/HEV) January 2025
Page 5 of 6
SUBJECT:
HYBRID CONTROL UNIT (HCU) LOGIC IMPROVEMENT (SC322)
ATTENTION: THE PROOF OF CORRECTION CARD AND CAMPAIGN COMPLETION LABEL ARE
RESTRICTED ONLY TO DEALERS IN THE FOLLOWING STATES:
California, Connecticut, Delaware, Massachusetts, Maine, Maryland, New Jersey, New York, Oregon,
Pennsylvania, Rhode Island, Vermont, and Washington. See Parts Information below to order the Proof of
Correction Card and Campaign Completion Label from the PDC.
VEHICLE EMISSION RECALL - PROOF OF CORRECTION CARD
A Vehicle Emission Recall - Proof of Correction card must be filled out for all vehicles registered in California,
Connecticut, Delaware, Massachusetts, Maine, Maryland, New Jersey, New York, Oregon, Pennsylvania,
Rhode Island, Vermont, and Washington. Residents of these states, who own an affected vehicle, will be
required to possess a Vehicle Emission Recall - Proof of Correction card as evidence of voluntary service
campaign completion, when they apply for vehicle registration renewal.
WHAT TO DO WITH THE CARD:
The Vehicle Emission Recall - Proof of Correction card must be completed by the Dealership's Service Manager
using a permanent ink pen. A fine point pen is recommended. When filling in the information, copy the
information directly from the vehicle, not the repair order. ALL INFORMATION MUST BE PRINTED AND NEAT.
NOTE: DO NOT COMPLETE THE CARD UNLESS THE SERVICE CAMPAIGN WORK IS COMPLETED.
The copy of the card shown below indicates the areas to be filled in. Each area must be filled in. The completed
card should be given to the owner of the vehicle upon completion of the Campaign and placement of the
Campaign Completion Label outlined below.
FILLING OUT AND APPLYING THE CAMPAIGN COMPLETION LABEL (CA and S.177 STATES ONLY):
The dealer must fill in the Dealer Code and Date information fields on the Campaign Completion Label.
Once complete, affix the campaign completion label under the hood of the vehicle, as shown below.
CA and S.177 States Only: Apply SC322 Campaign
SC322
Completion Label onto the body in the area next to
Dealer Code:
the shock tower, as shown. NOTE: Be sure to clean
Date:
the mounting surface to ensure proper label
UT160 SC322
adhesion.
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: SC322 Sportage HEV, PHEV (NQ5 P/HEV) January 2025
Page 6 of 6
HYBRID CONTROL UNIT (HCU) LOGIC IMPROVEMENT (SC322)
SUBJECT:
AFFECTED VEHICLE RANGE:
Model
Production Date Range
Sportage HEV (NQ5 HEV)
February 15, 2022 to July 25, 2024
Sportage PHEV (NQ5 PHEV)
June 16, 2022 to July 24, 2024
REQUIRED TOOL:
Tool Name
SST #
KDS
N/A
Figure
Comments
Kia Diagnostic System
REQUIRED PART:
Part Name
Part Number
Campaign
Completion Label
Vehicle Emissions Recall
Proof of Correction Card
Figure
Qty.
UT160 SC322
1
UT161 SC322
1
WARRANTY INFORMATION:
N Code: N99 C Code: C99
Claim
Type
Causal P/N
Qty.
Repair
Labor Op
Op
Replacement
Description
Code
Time
P/N
(SC322)
R
36601 3DBN1
0
HCU Logic
Improvement
240128R0
0.4
M/H
N/A
Qty.
0
Note: Refer to Warranty Bulletin 2025-03 for claim submission procedures.
NOTICE
VIN inquiry data for this repair is provided for tracking purposes only. Kia retailers should reference
SC322 when accessing the KDealer+ system.
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: SC322 Sportage HEV, PHEV (NQ5 P/HEV) January 2025
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TSB/Document ID: SC322_TSB
Replacement Service Bulletin Number:
MFR Communication Date: 2025-01-15
MFR Internal Campaign ID/Software Version: SC322
Communication Type: Emissions
NHTSA Components: FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
MFR Component System:
MFR Component Subsystem:
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