VT40 Transmission Setting DTC P2714 – 2019-2022 Chevrolet Buick

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Bulletin No.: PIP5819A Published date: 12/17/2021
Preliminary Information
PIP5819A VT40 Transmission Setting DTC P2714
Product Investigation Review Required Models

Brand:

Chevrolet Chevrolet Buick

Model:

Malibu Trailblazer Encore GX

Model Years:

2019 – 2022
2021 – 2022
2020 – 2022

VIN:
from to
All All
All All
All All

Engine:

All All All

Transmissions:

VT40 CVT Automatic (MRG) VT40 CVT Automatic (MRG) VT40 CVT Automatic (MRG)

Involved Region or Country

Condition

Cause

North America and NA exports
Some customers may comment on a loss of forward gear, slipping, and/or a check engine light on.
Technicians may find the following DTC set in the Transmission Control Module (TCM)
P2714: Transmission Control Solenoid Valve 4 Stuck Off
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.
Correction:
Verify DTC P2714 is set current or history .
Verify the transmission fluid is at the proper level following 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.
If the fluid level is correct, with the transmission at operating temperature, drive the vehicle
and see if there is a slip or lack of engagement in drive.
If there is no slip in drive, clear the DTC’S.
Drive the vehicle, making sure the vehicle is at operating temperature.
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.
If the DTC does not reset, replace the valve body (Not the solenoid valve body) and re-evaluate.
If DTC P2714 resets, 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 Or if the Primary and
Secondary Pulley pressure drop on auto stop
Pressure on auto stop should be around 400 kPa If below 300 kPa there could be 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.
With the transmission disassembled, inspect the Forward Clutch Piston for damage along the side as
shown.

If the Forward clutches are worn and there is damage seen to the Forward Clutch Piston then replace
the Foward 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.
Note: The first 2 pictures show the outside of the pump, and the second 2 pictures show the wear
that is found internal to the pump when wear to the Primary Pulley Bearing Bore is found .

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.
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
Description Part Number
Quantity Control Valve Body See
Electronic Parts Catalog (EPC) 1
Forward Clutch Piston See EPC
1
Forward Clutch Plate (Fiber) See EPC
2
Forward Clutch Apply Plate See EPC
1
Forward Clutch Plate (Waved) See EPC
1
Forward Clutch Plate (Steel) See EPC
1
Forward Clutch Piston Dam See EPC
1
Forward Clutch Piston Housing See EPC
1
Transmission Assembly See EPC
1

Warranty Information
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
Labor Time
8463690 Control Valve Body Replacement
Use Published Labor Time
8465430 Forward Clutch Replacement
Use Published Labor Time
8464670 Transmission Replacement
Use Published Labor Time

Version History
Version 2
Modified 08/23/2021 – Created on.
12/17/2021- Updated model years, added diestion to replace the Forward

Clutch Piston housing as required

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