NHTSA ID Number: 11012694
Manufacturer Communication Number: 24-NA-015
TSB/Document Date: 2025-01-09
Summary
This service bulletin provides Hybrid/EV Charging Issue Information and Data Collection Worksheet.
Bulletin No.: 24-NA-015
Service Bulletin
Date: December, 2024
INFORMATION
Subject:
Brand:
Hybrid
/EV Charging Issue Information and Data Collection Worksheet
Model:
Model Year:
from
BrightDrop
VIN:
to
Zevo 400
2023
Zevo 600
2024
Escalade IQ
2024
2025
LYRIQ
2024
2025
OPTIQ
2025
2025
Blazer EV
2024
2025
2017
2023
Bolt EUV
2022
2023
from
to
—
—
Propulsion:
Hybrid/EV
All
2025
Equinox EV
2024
2025
Silverado EV
2024
2025
2022
2025
2024
2025
Involved Region or Country
North America, Middle East
Information
This bulletin and worksheet within are to assist with data collection, diagnosis, and repair
for Hybrid/EV charging issues.
Important: Service agents must comply with all International, Federal, State, Provincial, and/or Local laws
applicable to the activities it performs under this bulletin, including but not limited to handling, deploying,
preparing, classifying, packaging, marking, labeling, and shipping dangerous goods. In the event of a
conflict between the procedures set forth in this bulletin and the laws that apply to your dealership, you
must follow those applicable laws.
Important: This technical service bulletin (TSB) can only be completed by certified repair facilities who have
met all specific training, tool and equipment requirements pertaining to the vehicle Brand and Model
serviced. Repairs must be performed by a technician who has successfully completed the required training.
Information Collection
For diagnostic information, please reference Service Information (SI). Contact the GM Technical Assistance Center
(TAC) via Dealer Case Management (DCM) or @ 877-446-8227 (U.S.). Canada 1-800-263-7740 (English) or
1-800-263-7960 (French) AFTER all relevant information is collected to review case details. Please submit a photo
of the worksheet below, session log (if applicable), and any other relevant information. Reference the latest version
of PIP5632 for session log data collection.
GDS2 Charging Information
Note: Specific GDS verbiage may differ depending on application.
Ultium Vehicles
K16 Battery Energy Control Module – Data Display – AC Charge History Data
Copyright 2024 General Motors. All Rights Reserved.
Page 2
December, 2024
Bulletin No.: 24-NA-015
K16 Battery Energy Control Module – Data Display – DC Charge History Data
K16 Battery Energy Control Module – Data Display – Charge Port- Data
K16 Battery Energy Control Module – Data Display – Hybrid/Electric Vehicle Battery AC Charger Data
K16 Battery Energy Control Module – Data Display – Hybrid/Electric Vehicle Battery DC Charger Data
K16 Battery Energy Control Module – Data Display – Thermal Management Propulsion, Battery, and Electronics
K16 Battery Energy Control Module – Data Display – Hybrid Battery Pack Contactor Open Reasons
K16 Battery Energy Control Module – Identification Information – Identification Information
Bolt EV / EUV
K114B Hybrid/EV Powertrain Control Module 2 – Data Display – Battery Charger Control Module Data
K114B Hybrid/EV Powertrain Control Module 2 – Data Display – Charge History Data
K114B Hybrid/EV Powertrain Control Module 2 – Data Display – Contactor Data
K114B Hybrid/EV Powertrain Control Module 2 – Data Display – Hybrid Battery Pack Contactor Open Reasons
K114B Hybrid/EV Powertrain Control Module 2 – Data Display – DC Battery Charger Data
K114B Hybrid/EV Powertrain Control Module 2 – Data Display – DC Charge History Data
K114B Hybrid/EV Powertrain Control Module 2 – Identification Information - Identification Information & Control
Module ID Information
Diagnostic Tips
AC and DC charging utilizes different circuits and components; therefore, testing should focus on the applicable
charging type.
Hybrid / EV Charging Analysis Worksheet
Hybrid / EV Charging Analysis Worksheet
VIN:______________________________________ Year:___________ Make:__________________
Model:_______________________
Date:________________ Odometer:_____________ Ambient Temp:_____________
Customer Issue
Description:______________________________________________________________________________________
______________________________________________________________________________________________________
_
______________________________________________________________________________________________________
_
______________________________________________________________________________________________________
_
DTCs:_________________________________________________________________________________________________
_
K16 or K114B Application S/W Part Number
1:________________________________________________________________________
K16 or K114B Calibration Part Number
1:____________________________________________________________________________
Can the issue be duplicated:_________________________ Issue
Occurrence:______________________________________________
Has any diagnosis or repair attempts been performed to
date?:___________________________________________________________
______________________________________________________________________________________________________
_
______________________________________________________________________________________________________
_
Bulletin No.: 24-NA-015
December, 2024
Page 3
Hybrid / EV Charging Analysis Worksheet
L1-120v (AC), L2-220v (AC), L3-440v+
(DC)Charge:___________________________________________________________________
Issue Location (Public/
Home):_____________________________________________________________________________________
Vehicle Charge Indicator Light (Flashing, pulsating, On, Solid, Off,
Color:___________________________________________________
Color or Sequence of LEDs on
Charger:______________________________________________________________________________
______________________________________________________________________________________________________
_
Is the issue limited to one charger or multiple?:__________________
Charge kW:__________________________________________
EVSE/Charger
information:________________________________________________________________________________________
Station Provider & Station
ID:_____________________________________________________________________________________
Messages or Errors displayed on the IPC or Charge
Station:______________________________________________________________
Does this happen at a specific State of Charge or time (If so provide
details):________________________________________________
______________________________________________________________________________________________________
_
Was the vehicle Preconditioned prior to DC Fast Charging (If so, how
long):_________________________________________________
Was the vehicle charging in Propulsion Ready:___________ Was the heat or air conditioning used at time of
issue:______________________________
Home Target Charge Level:___________________________ Away Target Charge
Level:______________________________________
Charge Now (Y/N):_______________________ Time of Day Charging:________________ Home Location enabled(Y/
N):____________
Vehicle to Vehicle Charging(Y/N):______________________ Vehicle to Home Charging(Y/
N):___________________________________
Is an CCS NACS adaptor being used?
________________________________________________________________________________
Aftermarket Accessories/
Other:____________________________________________________________________________________
Ask for p/n on CCS NACS adapter ___________________________________
Is vehicle experiencing slow or derated/reduced charging? ___________________________________
Any Debris in charging inlet? ____________________________
Is the Ultium power bar working? ____________________________
Has the charge inlet manual release cable been pulled? ____________________________
Verify charge settings on infotainment screen are accurate with customer ____________________________
Verify coolant level ____________________________
Additional
Notes:________________________________________________________________________________________________
______________________________________________________________________________________________________
_
______________________________________________________________________________________________________
_
______________________________________________________________________________________________________
_
______________________________________________________________________________________________________
_
______________________________________________________________________________________________________
_
______________________________________________________________________________________________________
_
______________________________________________________________________________________________________
_
______________________________________________________________________________________________________
_
Page 4
December, 2024
Bulletin No.: 24-NA-015
Hybrid / EV Charging Analysis Worksheet
______________________________________________________________________________________________________
_
______________________________________________________________________________________________________
_
______________________________________________________________________________________________________
_
______________________________________________________________________________________________________
_
______________________________________________________________________________________________________
_
Please provide any photos, videos, session log(s) or any other relevant information.
Note: Please provide any photos, videos, session log(s) or any other relevant information.
Version
3
Modified
Released January 23, 2024
Revised September 25, 2024 – Added Models and the 2025 Model Year and added
additional questions to worksheet.
Revised December 12, 2024 – Removed Cadillac CELESTIQ and added Cadillac
OPTIQ.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these
technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper
service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job
properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your
vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the
information.
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TSB/Document ID: 24-NA-015
Replacement Service Bulletin Number:
MFR Communication Date: 2024-12-13
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
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