Bulletin No.: PIE0794B

Service Bulletin

Date: August, 2024

ENGINEERING INFORMATION
Subject:

Engineering Information - (EI Lite) - (Pictures Only) Oil Leaking from Oil Pan

Attention:

Proceed with this EI Lite ONLY if the customer has commented about this
concern AND the PIE number is listed in the Global Warranty
Management / Investigate History link (GWM/IVH). If the customer has not
commented about this condition or the EI does not show in GWM/IVH,
disregard this PIE, and proceed with diagnostics found in published
service information. This EI Lite is asking ONLY to submit the description
of the issue and pictures/video using the Field Product Reporting (FPR)
App (reference bulletin 02-00-89-002). THIS IS NOT A RECALL — refer to
the latest version of Service Bulletin 04-00-89-053 for more details on the
use of Engineering Information bulletins.

This EI has been revised to remove the 2022-2023 Model Years and update the
Correction. Please discard PIE0794A.

Brand:

Buick

Model:

Model Year:

Breakpoint:

from

to

from

to

2024

2024

—

—

Engine:

Transmission:

2.0L (RPO
LSY)

—

Envision
CT4
CT5

Cadillac

XT4
XT5
XT6

Chevrolet

Blazer

GMC

Acadia

Involved Region or Country

U.S. Dealers ONLY

Condition

Important: If the customer did not bring their vehicle in for this concern, DO NOT proceed with this EI Lite.
Some customers may comment on oil leaking from the oil pan.
Note: Instructions to load the FPR App to your phone and other detailed instructions can
be found in the latest version of Bulletin 02-00-89-002 (U.S. Dealers).

Cause

GM Engineering is attempting to determine the root cause of the above condition.
Engineering has a need to gather information on vehicles PRIOR to repair that may
exhibit this condition. As a result, this information will be used to "root cause" the
customer's concern and develop/validate a field fix.

Correction
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

Copyright 2024 General Motors. All Rights Reserved.

Page 2

August, 2024

Bulletin No.: PIE0794B

conflict between the procedures set forth in this bulletin and the laws that apply to your dealership, you
must follow those applicable laws.
If you encounter a vehicle where a customer comments on having oil leaking from the oil pan that drives a
warrantable item type of repair on any of the listed Models shown above, use the Field Product Reporting (FPR)
App, take pictures of the issue (per details below), and fill out the required fields (including adding PIE number
PIE0794 in the Condition Field) and submit.
Note: GM has updated the Field Product Reporting App, and it is now part of the “Certified Service Mobile
Toolbox” (CSMT). Instructions to load the App to your phone and other detailed instructions can be found in
the latest version of Bulletin 02-00-89-002 (U.S. Dealers).
CT4 and CT5 Oil Pan

6664231

XT4, XT5, XT6, Blazer, and Acadia Oil Pan

6664230

Make an assessment based on which leak "zone" the oil is originating from on the oil pan and take a clear picture.
Circle the identified leak area on a printout or PDF of the provided oil pan call out locator.

Bulletin No.: PIE0794B

August, 2024

Page 3

6713713

1. Take a clear picture of sealing surface of the oil pan (1), as shown in picture above.
Note: Use colored tape or other type of stick-on marker to indicate area of concern.

6713714

2. Take a clear picture of the LCE (2), as shown in the picture above.
Note: Use colored tape or other type of stick-on marker to indicate area of concern.

Warranty Information
If a Field Product Report is submitted, use: (EI LITE)
Labor
Operation

Description

Labor Time

4088438*

Engineering Information (EI Lite) - (Pictures Only)
Oil Leaking from Oil Pan

0.3 hr

*This is a unique Labor Operation for bulletin use only.

Page 4

August, 2024

Bulletin No.: PIE0794B

Version

3

Modified

Released June 10, 2024
Revised June 26, 2024 – Clarified the Correction to add marking the leak area.
Revised August 14, 2024 – Removed the 2022-2023 Model Years and updated the
Correction.

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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