Bulletin No.: PIP4902U

Service Bulletin

Date: January, 2026

PRELIMINARY INFORMATION
Subject:

Procedure For Emailing Global Diagnostic System 2 (GDS2) Session Log To
GM TAC (US and Canada Dealers Only)

Brand:

Model:

Model Year:
from

All

All

2010 - 2026

VIN:
to

from
All

Engine:

Transmission:

to
All

All

All

Supersession Statement
This PI was superseded to update correction information. Please discard PIP4902T.
All GM Vehicles That Use GDS2 for Capturing Session Logs

Condition / Concern
On occasion, GM Technical Assistance Center (TAC) may request a GDS2 Session Log so they can review GDS2
data from a vehicle that you are working on.
Correction
If TAC requests a GDS2 Session Log, follow the procedure below to email it to them.
Note: For dealers using CX Connect that would prefer to attach GDS session logs directly to a TAC case, please
reference the latest copy of articles 000212206 and 000214088 in CX connect for GDS session log data collection.
This procedure is written with the assumption that the user already has a basic understanding of GDS2 and email.
For more information on GDS2, refer to the following documents:
Latest version of 09-00-89-019 (Introduction of New Global Diagnostic System 2)
February 2011 Techlink
January 2011 Techlink
1. Launch GDS2 and click Review Stored Data as shown below.

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Copyright 2026 General Motors. All Rights Reserved.

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January, 2026

Bulletin No.: PIP4902U

2. Click on the Edit Button as shown below.

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3. Click on the Check Box next to the session log that you would like to email to TAC and then click the Email Button
as shown below. If several session logs are stored, you may wish to sort by the date/time that the session log was
recorded.

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4. On the next screen you will notice the VIN has already been entered in the Subject field. Please leave the VIN
there, but add the TAC case number after the VIN as shown below. To send the snapshot to TAC use the appropriate email address listed below:
USA: [email protected]
Canada: [email protected]
Restricted part : [email protected]

Bulletin No.: PIP4902U

January, 2026

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Please be sure to identify the snapshot by placing the TAC Case Number, the last eight digits of the VIN and the
type of data (i.e. engine or transmission) in the subject line of your e-mail.
Important: Once the session has been Emailed, Please update the case through CX Connect or call TAC back so
the TAC agent knows the session was sent.

Warranty Information
For vehicles repaired under warranty, please use the appropriate warranty labor operation based on the actual
cause and repair.

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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