the Verification Numbers as shown, then perform the
following steps:
1. Update the Tech 2® with the latest software.
2. Turn OFF the ignition for 90 seconds.
3. Connect the Tech 2® to the vehicle.
4. Turn ON the ignition, and build the vehicle.
Observe the Tech 2® Vehicle Information Calibration ID and Verification No. (Number/CVN)
screen for proper operation.
⇒ If the Tech 2® screen still does not display
properly, then turn OFF the ignition for 90
seconds again. Turn ON the ignition and
observe the same screen for proper operation.

6. Retrieving Calibration Information
Using GDS 2 (Global A and VIP
Vehicles) - This Action is Required for
ALL Service Agents (Model Dependent)
Notice: This information applies to Global A and
VIP - GDS 2 compatible vehicles and is typical of
the procedure that will be used.
1. Turn OFF the ignition.
2. Connect the MDI to the Data Link Connector (DLC)
of the vehicle.
Notice: Use the USB port to make the following MDI
connection:
3. Connect the MDI to a PC or laptop that has been
downloaded with the Techline Connect (TLC) and
the GDS 2 application.

Bulletin No.: 09-06-04-026V

February, 2022

Page 5

4. Select: GDS 2 on the PC.
5. Select: Diagnostics icon.
6. Select: serial number of the MDI being used.
7. Select: Enter icon.
8. Select: Module Diagnostics.
9. Select: Engine Control Module.
Notice: Due to the model selected, vehicle build,
software and RPO variations, GDS 2 may ask for
additional information in Step 10.
10. Select: Engine ID, if prompted.
11. Select: Identification Information.
12. The Identification Information page will appear.
Notice: This is a typical view of a GDS 2 Calibration
History Events Screen. GDS 2 is capable of
displaying up to 10 Calibration History Events.

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13. Select: Calibration History from the list in order to
display the following items on the screen, including
the VIN:
• Calibration History Buffer
• Number of Calibration History Events Stored
• Calibration Part Number History
• Calibration Verification Number History
14. Select: Create Report.

Note: Repeated “FFFF”s or “0000”s are harmless.
They are place holders, and are not actual calibrations.
It is not necessary to photograph extra screens
containing only this type of calibration (FFFF’s or
0000’s).
15. Select: Print.
Notice: It is recommended that an electronic copy
of the GDS 2 Calibration History also be saved.
Refer to Section: 7. Creating a .jpg or .jpeg File
From a GDS 2 Calibration History Screen Shot
Using Microsoft Paint

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February, 2022

Bulletin No.: 09-06-04-026V

16. Retain a copy of the printed screen shot with
the repair order.

7. Creating a .jpg or .jpeg File From a
GDS 2 Calibration History Screen Shot
Using Microsoft Paint
1. Type: paint in the search box on the taskbar in
Windows 10
2. Select: Paint.
3. Navigate to: Calibration History .
4. Press the: Print Screen button. (if using multiple
screens, press ALT+PRINT SCREEN to capture
the active window only)
5. Open: Microsoft Paint
6. Select: Paste (CTRL+V).
7. Select: Save As.
8. Select: Desktop.
9. Select: File name. Name the file. As an example
use the VIN.
10. Select: Save as type, using the drop down menu.
11. Select: JPEG

8. Calibration Verification Procedure —
For Service Agents NOT REQUIRED to
Call PQC for Powertrain/Drivetrain
Assembly Replacement Authorization
— Using the Tech 2® or GDS 2
1. Go to: Techline Connect Home Page.

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Bulletin No.: 09-06-04-026V

February, 2022

Page 7

2. Under Support, Select SPS Info.

3340097

3. Enter the: VIN.
4. Select: Get Cal ID.

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February, 2022

Bulletin No.: 09-06-04-026V

3340122

5. Select: ECM Engine Control Module —
Programming from the Controller dropdown
menu and select: Next.

Bulletin No.: 09-06-04-026V

February, 2022

Page 9

3340145

6. Select: Complete History at the top left or bottom
left of the page to access the GM Vehicle
Calibration Information screen, which displays all
of the GM Approved Calibrations and CVNs
(Calibration Verification Numbers).
⇒ If the vehicle being serviced requires using the
Tech 2® , Go to subsection: 8. A. Calibration
Verification Procedure — Using the Tech 2®
⇒ If the vehicle being serviced requires using
GDS 2, Go to subsection: 8. B. Calibration
Verification Procedure — Using GDS 2

Page 10

February, 2022

Bulletin No.: 09-06-04-026V

8. A. Calibration Verification Procedure — Using the
Tech 2®

3336860

Compare each: Calibration ID Part Number and
Verification No. (Number/CVN) from your Tech 2®
photo to the corresponding Calibration ID Part
Number and Verification No. (Number/CVN) listed in
the GM Vehicle Calibration Information screen to
ensure that they are ALL an EXACT MATCH.
⇒ If ANY of the Calibration ID Part Number and
Verification No. (Number/CVN) when COMPARED
to the Calibration ID Part Number and Verification
No. (Number/CVN) listed in the GM Vehicle
Calibration Information screen, DO NOT MATCH,
then non-GM calibrations may be present and you
should follow the procedure in Section: 10.
Procedure for All Service Agents for E-mailing
.jpg or JPEG Files to the Calibration Group at —
[email protected] in order to e-mail your findings
to the Calibration Group, who will then document
your information with the appropriate Brand Quality
Manager in the Brand Quality Team.

Bulletin No.: 09-06-04-026V

February, 2022

Page 11

8. B. Calibration Verification Procedure — Using
GDS 2

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February, 2022

Bulletin No.: 09-06-04-026V

3339024

Compare each: Engine Calibration Part Number
History parameter and Calibration Verification
Number History parameter from the GDS 2
Calibration History screen to the Calibration Part
Number and Calibration Verification Number (CVN)
listed in the GM Vehicle Calibration Information
screen to ensure that they are ALL an EXACT
MATCH.
⇒ If ANY Engine Calibration Part Number History
parameter and Calibration Verification Number
History parameter when COMPARED to the Engine
Calibration Part Number History parameter and
Calibration Verification Number History listed in the
GM Vehicle Calibration Information screen, DO
NOT MATCH, then non-GM calibrations may be
present and you should follow the procedure in
Section: 10. procedure for All Service Agents for
E-mailing .jpg or JPEG Files to the Calibration
Group at — [email protected] in order to e-mail
your findings to the Calibration Group, who will then
document your information with the appropriate
Brand Quality Manager in the Brand Quality Team.

9. Calibration Verification Procedure —
For Service Agents REQUIRED to Call
PQC for Powertrain/Drivetrain
Assembly Replacement Authorization
— This Procedure MUST be Performed
by the Calibrations Group
Notice: For Service Agents Required to Call PQC
for Powertrain/Drivetrain Assembly Replacement
Authorization, the Calibration Verification
Procedure MUST be Performed by the Calibrations
Group
1. Assemble the Calibration Information that was
retrieved when you performed Section: 4.
Retrieving Engine Calibration ID and
Verification No. (Number) Information Using the
Tech 2® - This Action is Required for ALL
Service Agents (Model Dependent)
OR
2. Assemble the Calibration Information that was
retrieved when you performed Section: 6.
Retrieving Calibration Information Using GDS 2
- (Global A and VIP Vehicles) This Action is
Required for ALL Service Agents (Model
Dependent)
3. Go to Section: 10. Procedure for ALL Service
Agents for E-mailing .jpg or JPEG Files to the
Calibration Group at — [email protected] .

Bulletin No.: 09-06-04-026V

February, 2022

10. Procedure for ALL Service Agents
for E-mailing .jpg or .jpeg Files to the
Calibration Group at —
[email protected]
Notice:
1. ALL screen shots MUST be sent as a .jpg or
.jpeg file. Keep all photos in ONE e-mail.
2. DO NOT e-mail photos from the GDS 2 in the
automatic format of a .png file. Your e-mail will
arrive at the Calibrations Group with the .png
file(s) having been stripped by the security
firewall.
1. Create an e-mail to be sent to: [email protected]
2. Attach the Tech 2® digital .jpg photos or the GDS 2
.jpg photos to the e-mail. Keep ALL photos in one
e-mail.
3. In the Subject Line of the e-mail include the
following:
3.1. The phrase: “V6 Cal”, “V8 Cal” or
“4-Cyl Cal”
3.2. The complete: VIN
3.3. The Service Agent BAC
4. In the Body of the e-mail include the following:
4.1. The complete: VIN
4.2. The Mileage
4.3. The Service Agent BAC
4.4. The Technician / Service Manager Name
4.5. The Return email Address
4.6. The Repair Order (R.O.) or Job Card
number
4.7. The Customer Complaint
4.8. The Cause of the Condition
4.9. Any Modifications noted
Notice: Requests that are sent to the Calibrations
Group are handled in the order in which they were
received.
5. The Service Agent will receive an e-mail reply after
the calibrations have been validated. The e-mail
reply will advise the Service Agent if the
calibrations are OEM.
⇒ If non-GM ECM calibrations are determined to
be present, the Calibrations Group will forward
the case to the appropriate Brand Quality
Manager for review. The Brand Quality
Manager will then determine whether the
warranty will be blocked and will respond to all
parties concerned.

Page 13

6. You may call the PQC two hours after submitting
the e-mail to the Calibrations Group (or after the
results have been received by e-mail) for
authorization to replace the assembly. This time
allows the Calibrations Group to receive, review,
verify the calibrations and set up a case for the
request. The Calibrations Group will also update
the PQC or TAC case with the results of the
Calibration Verification Request.
Be prepared to provide all the usual documentation
that is normally required when requesting an
assembly authorization from the PQC.
Notice: DO NOT contact GM Technical Assistance
(TAC) to discuss warranty concerns on the non-GM
calibrations. ALL questions and concerns about
warranty should be directed to the District Manager
Aftersales (DMA), in Canada the District Service
Manager (DSM).

11. Calibrations Group - New E-mail
Address - [email protected]
The Calibrations Group has a new e-mail address to be
used when mailing the digital .jpg or .jpeg photographs
of the Engine Calibration ID and Verification No.
(Number) Information taken from the Tech 2® or .jpg or
.jpeg photographs from the GDS 2 Calibration History
screen shot.
E-mail all .jpg or .jpeg files to this address:
[email protected]

12. Warranty Information
•

The Dealership Service Management must be
involved in any situation that would justify the use
of labor operation 0600014.
• Notify the District Service Manager (DVM), in
Canada the DSM (District Service Manager), of
the situation.
• All claims will have to be routed to the Warranty
Support Center (WSC) for approval.
• Please refer to the latest version of Corporate
Bulletin Number 09-00-89-016: Labor Operation
0600014 - Suspected Tampering or Vehicle
Modifications for important information.
For vehicles repaired under warranty, use:
Labor
Operation
0600014

Description

Labor Time

Suspected Tampering or
Vehicle Modifications

0.2 hr

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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