GLOBAL SAFETY FIELD INVESTIGATIONS
DCS6201
URGENT - DISTRIBUTE IMMEDIATELY
Date:

July 1, 2022

Subject: N222360900 - Customer Satisfaction Program
Extract Mode Upgrade; Chassis Position Sensor Correction
Models: 2022 GMC Hummer EV
To:

All General Motors Dealers

General Motors is releasing Customer Satisfaction Program N222360900 today.
The total number of U.S. vehicles involved is 213. Please see the attached
bulletin for details.
Customer Letter Mailing
Customers will be notified via email and follow up with a letter to the customer
if necessary.
Global Warranty Management (GWM)
The Required Field Action section on the Investigate Vehicle History (IVH) screen will
be updated July 1, 2022. A list of involved vehicles in dealer new inventory is attached
to this message. Please hold all warranty transactions until IVH has been updated.
END OF MESSAGE
GLOBAL SAFETY FIELD INVESTIGATIONS

Customer Satisfaction Program
N222360900 Extract Mode Upgrade; Chassis Position Sensor
Correction
Release Date:
Attention:

July 2022

Revision:

00

This field action must only be completed by GMC EV certified dealers and repairs must be performed by
a technician who has successfully completed the required training.
This program is in effect until July 31, 2024.

Make

Model

GMC

Hummer EV

Model Year
From
To
2022
2022

RPO

Description

Involved vehicles are marked “open” on the Investigate Vehicle History screen in GM Global Warranty Management
system. This site should always be checked to confirm vehicle involvement prior to beginning any required inspections
and/or repairs.
Condition

Correction

This bulletin contains the service procedure to enable Extract Mode on certain 2022 model year GMC
Hummer EV vehicles. This service procedure also corrects a potential calibration error that can cause
a Service Leveling System message to erroneously appear on the DIC (Driver Information Center)
during certain driving maneuvers.
Dealers are to replace the position sensors and reprogram sequential programming.

Parts
Quantity
1
1
1
1

Part Name
SENSOR ASM-FRT SUSP AUTO FWD LIGHTING POSN
SENSOR ASM-FRT SUSP AUTO FWD LIGHTING POSN
SENSOR ASM-RR SUSP 2 OR 4 CORNER AIR LVLG POSN
SENSOR ASM-RR SUSP 2 OR 4 CORNER AIR LVLG POSN

Part No.
87838833
87838834
87838835
87838836

It is estimated that only 213 involved vehicles will require parts replaced. Due to the small number of vehicles
anticipated that will need this fix and the limited initial parts availability, dealers are encouraged not to order
these parts for use as shelf stock.
Reminder: Parts may be removed from Retail Inventory Management (RIM). Dealers should review the affected parts
to confirm RIM managed status. Parts may have quantity limiters in effect.
Warranty Information
Labor
Operation
9106308

Description
Front Suspension 4 Corner Leveling System Position Sensors and
Rear Suspension 2 or 4 Corner Air Leveling Position Sensors
Replacement (includes GDS2 relearn), and Reprogram Sequential
Programming

Labor
Time
1.8

Trans.
Type
ZFAT

Net
Item
N/A

Important: * To avoid warranty transaction rejections, carefully read and follow the instructions below:
•

The Warranty Claim Code must be accurately entered in the “Warranty Claim Code” field of the transaction.

•

When more than one Warranty Claim Code is generated for a programming event, it is required to document all
Warranty Claim Codes in the “Correction” field on the job card. Dealers must also enter one of the codes in the
“Warranty Claim Code field of the transaction, otherwise the transaction will reject. It is best practice to enter
the FINAL code provided by SPS2.

Warranty Claim Code Information Retrieval
If the Warranty Claim Code was not recorded on the Job Card, the code can be retrieved in the SPS2 system as
follows:
1.
2.
3.
4.

Open TLC on the computer used to program the vehicle.
Select and start SPS2.
Select Settings.
Select the Warranty Claim Code tab.

The VIN, Warranty Claim Code and Date/Time will be listed on a roster of recent programming events. If the code is
retrievable, dealers should resubmit the transaction making sure to include the code in the SPS Warranty Claim Code
field.
Copyright 2022 General Motors. All Rights Reserved.

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Customer Satisfaction Program
N222360900 Extract Mode Upgrade; Chassis Position Sensor
Correction
Service Procedure
Caution: Before downloading the update files, be sure the computer is connected to the internet through a network cable
(hardwired). DO NOT DOWNLOAD or install the files wirelessly. If there is an interruption during programming,
programming failure or control module damage may occur.
Note: Carefully read and follow the instructions below.

•

Ensure the programming tool is equipped with the latest software and is securely connected to the data link connector.
If there is an interruption during programming, programming failure or control module damage may occur.

•

Stable battery voltage is critical during programming. Any fluctuation, spiking, over voltage or loss of voltage will
interrupt programming. Install a GM Authorized Programming Support Tool to maintain system voltage. Refer to
www.gmdesolutions.com for further information. If not available, connect a fully charged 12 V jumper or booster
pack disconnected from the AC voltage supply. DO NOT connect a battery charger.

•

Follow the on-screen prompts regarding ignition power mode, but ensure that anything that drains excessive power
(exterior lights, HVAC blower motor, etc) is off.

•

Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M)
system status indicators to NO.

Important: The service technician always needs to verify that the VIN displayed in the TLC left side drop down menu and
the top center window match the VIN plate of the vehicle to be programmed prior to using Service Programming System
2 (SPS2) for programming or reprogramming a module.

•

For the TLC application, service technicians need to always ensure that the power mode (ignition) is “ON” before
reading the VIN from the vehicle’s VIN master module and that they do not select a VIN that is already in the TLC
application memory from a previous vehicle.

•

If the VIN that shows up in the TLC top center window after correctly reading the VIN from the vehicle does not match
the VIN plate of the vehicle, manually type in the VIN characters from the vehicle VIN plate into the TLC top center
window and use these for programming or reprogramming the subject module with the correct vehicle VIN and
software and/or calibrations.

Caution: Be sure the VIN selected in the drop-down menu (1) is the same as the vehicle connected (2) before beginning
programming.

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Customer Satisfaction Program
N222360900 Extract Mode Upgrade; Chassis Position Sensor
Correction

5743643

Important: If the vehicle VIN DOES NOT match, the message below will be shown.

5877000

Page 3 of 7

Customer Satisfaction Program
N222360900 Extract Mode Upgrade; Chassis Position Sensor
Correction

5644477

Important: Techline Connect screens shown above.
Important: If the same calibration/software warning is noted on the TLC Summary screen, select OK and follow screen
instructions. After a successful programming event, the WCC is located in the Service Programming System dialogue box
of the SPS Summary screen. No further action is required. Refer to the Warranty section of the bulletin.
1.

Replace both front suspension 4 corner leveling system position sensors. Refer to Front Suspension 4 Corner
Leveling System Position Sensor Replacement in SI.

2.

Replace both rear suspension 2 or 4 corner air leveling position sensors. Refer to Rear Suspension 2 or 4 Corner
Air Leveling Position Sensor Replacement in SI.

3.

Reprogram the sequential multiple modules. Select “ZFA Field Action Multimodule Coordination Sequence” and
follow on screen instructions.

5644478

Note: The screenshot above is an example of module programming and may not be indicative of the specific module that
is being programmed. Module selection and VIN information have been blacked out.

Page 4 of 7

Customer Satisfaction Program
N222360900 Extract Mode Upgrade; Chassis Position Sensor
Correction
Important: To avoid warranty transaction rejections, you MUST record the warranty claim code provided on the Warranty
Claim Code (WCC) screen shown above on the job card. Refer to callout 1 above for the location of the WCC on the
screen.
4.

Record SPS Warranty Claim Code on job card for warranty transaction submission.

Dealer Responsibility
All new, used, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc. in dealers' possession
and subject to this program must be held and inspected/repaired per the service procedure of this bulletin before
customers take possession of these vehicles. Involved vehicles must be held and not delivered to customers, dealertraded, released to auction, used for demonstration, or any other purpose.
All GM Certified Used vehicles currently in the dealers’ inventory within the Certified Pre-Owned Inventory System
(CPOIS) will be de-certified and must be held and remedied per the service procedure in this bulletin. Upon submitting
an accepted/paid warranty transaction in the Global Warranty Management (GWM) system, the vehicle can be re-certified
for sale within the CPOIS system, or once again be used in the CTP program.
Dealers are to service all vehicles subject to this program at no charge to customers, regardless of mileage, age of vehicle,
or ownership, through July 31, 2024. Customers who have recently purchased vehicles sold from your vehicle inventory,
and for which there is no customer information indicated on the involved vehicle listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions contained in this bulletin. A
copy of the customer letter is provided in this bulletin for your use in contacting customers. Program follow-up cards
should not be used for this purpose, since the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory or is in your facility for service
through July 31, 2024, you must take the steps necessary to be sure the program correction has been made before selling
or releasing the vehicle.
Dealer Reports
For dealers with involved vehicles, a listing has been prepared and will be available through GM GlobalConnect Maxis
Field Action Reports. The Inventory tab of the dealer reports will contain VINs that apply to this field action. This
information is intended to assist dealers with the PROMPT COMPLETION of these vehicles. The Customer In-Service
tab will contain customer names and addresses from Motor Vehicle Registration Records. The use of such motor
vehicle registration data for any purpose other than follow-up necessary to complete this field action may be a violation
of law in several states.
Courtesy Transportation
Courtesy transportation is available for customers whose vehicles are involved in a product program and still within the
warranty coverage period. See General Motors Service Policies and Procedures Manual for courtesy transportation
program details.
Customer Notification
General Motors will notify customers of this program on their vehicle via email (see example below) and follow up with a
letter to the customer if necessary.

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 tools, equipment, 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 dealer for information on whether your
vehicle may benefit from the information.

We Support
Voluntary Technician
Certification

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Customer Satisfaction Program
N222360900 Extract Mode Upgrade; Chassis Position Sensor
Correction

Visit or call Hometown Motors of
Hometown today.

Preproduction vehicle shown throughout. Actual production model may vary. Edition 1 Pickup limited
availability by waitlist. Additional GMC HUMMER EV models available Fall 2022.

Jillian,
Thank you for being one of the first GMC HUMMER EV
Edition 1 Pickup owners. Your supertruck is enabled with
many revolutionary features — and it just keeps getting
better.
Extract Mode,1 the exciting new feature that allows your
supertruck to raise nearly six inches from normal ride height,
is now available. This is designed to help your HUMMER EV
Pickup overcome even more obstacles while off-roading.
As one of our early HUMMER EV Pickup owners, we'd like
you to be one of the first to experience Extract Mode. To

Page 6 of 7

Customer Satisfaction Program
N222360900 Extract Mode Upgrade; Chassis Position Sensor
Correction
activate this new feature, a complimentary2 vehicle software
update and the installation of ride height sensors is required
at your dealership.
Schedule your appointment through our Concierge Service
or by contacting your dealership directly. Dealerships will be
equipped with necessary parts for the software update
beginning July 1.

MORE ABOUT EXTRACT MODE

Contact the GMC HUMMER EV Concierge at
833-HUMMER-EV.

Hometown Motors of Hometown
(123) 456-7890

VISIT US ONLINE

1. Limited to low speeds. Read the vehicle Owner’s Manual for important feature limitations and
information.
2. Service visit covered by warranty until 6/30/2024.
To ensure you receive your GMC emails, please add GMC@delivery.GMC.com to your Address Book.
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