Bulletin No.: 24-NA-009

Service Bulletin

Date: May, 2024

TECHNICAL
Subject:

Loss of Forward Gear, Slipping, Malfunction Indicator Lamp (MIL)
Illuminated - DTC P2714 Set

This Service Bulletin replaces PIP5819B. Please discard all versions of PIP5819.

Brand:

Model:

Model Year:
from

Buick

Encore GX

2020

Chevrolet

Malibu

2019

Chevrolet

Trailblazer

2021

Involved Region or Country

Condition

VIN:
to

from

to

2025

All

All

Engine:

Transmission:

All

VT40 CVT Automatic (MRG)

North America, Israel, Middle East, GM Korea Company, China
Some customers may comment on one or more of the following conditions:
⇒ Loss of Forward Gear
⇒ Slipping
⇒ Malfunction Indicator Lamp Illuminated
Technicians may find DTC P2714 (Transmission Control Solenoid Valve 4 Stuck Off)
set in the Transmission Control Module (TCM).

Cause

Note: This condition may be intermittent or not reproduceable.
This condition may be caused by the clutch regulator valve sticking in the valve body;
Damage to the forward clutch piston and/or wear in the Primary Pulley Bearing Bore
causing damage to the case.
Note: Refer to Service Bulletin # 20-NA-120 for drive chain and sheaves inspection with
Borescope prior to performing any other repairs. There is no reason to attempt to repair a
transmission once the sheaves and chain are damaged.
Verify DTC P2714 is set current or history.
Verify the transmission fluid is at the proper level following SI document 4818020.
Note: The transmission fluid temperature must be between 60°-80°C (140°-176°F) to
properly check the fluid level and to perform the following procedures.
1. If the fluid level is correct, with the transmission at operating temperature, drive the vehicle and verify if there is a slip or lack of engagement in drive.
2. If there is no slip in drive, clear the DTCs.
3. Drive the vehicle, ensuring the vehicle is at operating temperature.

Correction

4. If the DTC does not immediately reset and there is no slip condition or no loss of drive
felt, perform 3 to 4 WOT accelerations.
5. If the DTC does not reset, replace the valve body (Not the solenoid valve body) and
re-evaluate.
If DTC P2714 re-sets, check the following:
• No forward motion but does have reverse
• Slips under heavy acceleration
• The DTC or the concern is repeatable
• If there is a drop in Primary and Secondary pulley pressure drop due to leak
• If the Primary and Secondary Pulley pressure drop on auto stop

Copyright 2024 General Motors. All Rights Reserved.

Page 2

May, 2024

Bulletin No.: 24-NA-009

- Pressure on auto stop should be around 400 kPa.
- If below 300 kPa, this may indicate that there could be a piston seal leak.
If there is a loss of drive, slipping, the fluid has a burnt odor, or any of the above indicators are present, the transmission will need to be disassembled and inspected. Refer to
the Service Procedure below.

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.

Service Procedure
Remove and disassemble the transmission.

5892612

5896314

Inspect the Forward Clutch Piston for damage along
the side.
Note: The first 2 graphics show the outside of the
pump, and the second 2 graphics show the wear that is
found internal to the pump when wear to the Primary
Pulley Bearing Bore is found.
5892611

Bulletin No.: 24-NA-009

May, 2024

Page 3

If this concern is found, the transmission will need to be
replaced.
Note: The Primary Pulley Bearing is installed on the
inside of the case on the primary pulley. This area of
the transmission cannot be accessed for inspection.
Inspection of the pump for DTC P2714 and no concern
found with the Forward Clutch Piston is critical.

Parts Information
Note: Only select the parts that coincide with the repair
performed. Replace the part with the P/N outlined in the
Electronic Parts Catalog (EPC) in accordance with the
vehicle VIN.

5896315

Causal
Part

Description

Part Number

Qty

X

Control Valve
Body

See Electronic Parts
Catalog
(EPC)

1

X

Forward Clutch
Piston

See EPC

1

X

Forward Clutch
Plate (Fiber)

See EPC

2

X

Forward Clutch
Apply Plate

See EPC

1

X

Forward Clutch
Plate (Waved)

See EPC

1

X

Forward Clutch
Plate (Steel)

See EPC

1

X

Forward Clutch
Piston Dam

See EPC

1

X

Forward Clutch
Piston Housing

See EPC

1

X

Transmission
Assembly

See EPC

1

N/A

FLUID

See EPC

As Required

Warranty Information

5896313

If the forward clutches are worn and there is damage
seen to the Forward Clutch Piston, then replace the
Forward Clutch Piston and Housing and the applicable
apply components as needed.
If there is no damage to the Forward Clutch Piston,
inspect the pump for signs of wear.
If signs of wear are seen as shown, this indicates the
Primary Pulley Bearing has spun in the bore and is
allowing the Turbine Shaft to become off center. When
this happens, it causes a pressure leak.

For vehicles repaired under the Powertrain coverage,
use the following labor operations. Reference the Applicable Warranties section of Investigate Vehicle History
(IVH) for coverage information.
Labor Operation

Description

8463690

Control Valve Body
Replacement

8465430

Forward Clutch Replacement

8464670

Transmission Replacement

Labor Time

Use Published Labor
Operation
Time

Page 4

May, 2024

Bulletin No.: 24-NA-009

Version

3

Modified

Released January 10, 2024
Revised March 25, 2024 – Added the 2024 Model Year.
Revised May 31, 2024 – Added the 2025 Model Year and the first Note in the Correction
section.

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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