GM Bulletin No.: 14300
Date: December 2014

Service Bulletin

SERVICE UPDATE
SUBJECT:

Service Update for Inventory and Customer Vehicles
Power Liftgate Inoperable
Expires with Base Warranty

MODELS:

2015 Cadillac Escalade, Escalade ESV
2015 Chevrolet Suburban, Tahoe
2015 GMC Yukon, Yukon XL
Equipped with Power Liftgate (TB5/TC2)

All involved vehicles that are in dealer inventory must be held and not delivered to customers,
dealer traded, or used for demonstration purposes until the repair contained in this bulletin has
been performed on the vehicle.
This service update includes vehicles in dealer inventory and customer vehicles that return to the
dealership for any reason. This bulletin will expire at the end of the involved vehicle's New Vehicle
Limited Warranty period.
PURPOSE
This bulletin provides a service procedure to replace the liftgate actuator assembly on certain 2015
model year Cadillac Escalade and Escalade ESV, Chevrolet Suburban and Tahoe, and GMC
Yukon and Yukon XL vehicles equipped with a power liftgate (TB5/TC2). The power liftgate on
these vehicles may have been built with liftgate struts that can lock up and cease to move. If the
liftgate strut locks up, the customer may not be able to open or close the liftgate either
electronically or manually.
This service procedure should be completed as soon as possible on involved vehicles
currently in dealer inventory and customer vehicles that return to the dealer for any type
of service during the New Vehicle Limited Warranty coverage period.
VEHICLES INVOLVED
All involved vehicles are identified by VIN in the Global Warranty Management System –
Investigate Vehicle History Application. Dealership technicians should always check this site to
confirm vehicle involvement prior to beginning any required inspections and/or repairs. It is
important to routinely use this tool to verify eligibility because not all similar vehicles may be
involved regardless of description or option content.
Copyright 2014 General Motors. All Rights Reserved.

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December 2014

Bulletin No.: 14300

Additionally, a list of involved vehicles currently in dealer inventory is available on the “Service
Update Bulletin Information” link under the “Service” tab in GM GlobalConnect (US) or attached
to the GlobalConnect message (Canada) used to release this bulletin. Customer vehicles that
return for service, for any reason, and are still covered under the vehicle's base warranty should
also be checked for vehicle eligibility.
PART INFORMATION
Parts required to complete this service update are to be obtained from General Motors Customer
Care and Aftersales (GMCC&A). Please refer to your “involved vehicles listing” before ordering
parts. Normal orders should be placed on a DRO = Daily Replenishment Order. In an emergency
situation, parts should be ordered on a CSO = Customer Special Order.
Part Number
23226162

Description
ACTUATOR ASM-L/GATE PWR ASST (LH)

Quantity/Vehicle
1

SERVICE PROCEDURE

3981547

1.

Remove the liftgate upper trim finish panel (1). Refer to Liftgate Upper Trim Finish Panel
Replacement in SI.

3981549

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December 2014

Bulletin No.: 14300

Warning: When a lift gate hold open device is being removed or installed, provide alternate
support to avoid the possibility of damage to the vehicle or personal injury.
2.

Disconnect the left side electrical connector (circled in the graphic above) from the liftgate
wiring harness connector (1).

3.

Disconnect the pass through grommet (2).

3981551

4.

Using a small flat blade screwdriver, or similar tool, release the actuator retainers/clips (1).

3981552

5.

Remove the liftgate power assist actuator assembly (1) from the vehicle.

6.

Install the new liftgate power assist actuator assembly. Ensure the retainer/clip is fully
seated when the actuator rod is installed.

7.

Reconnect the pass through grommet and the electrical connector.

8.

Reinstall the liftgate upper trim finish panel. Refer to Liftgate Upper Trim Finish Panel
Replacement in SI.

Note: The Garage Height Calibration portion of the liftgate calibration is not necessary when
replacing the liftgate power assist actuator.
9.

Calibrate the power liftgate. Refer to Liftgate Calibration in SI.

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December 2014

Bulletin No.: 14300

WARRANTY TRANSACTION INFORMATION
Submit a transaction using the table below. All transactions should be submitted as a ZFAT
transaction type, unless noted otherwise.
Labor
Code
9100952

Description
Replace Liftgate Power Assist Actuator

Labor
Time
0.3

DEALER PROGRAM RESPONSIBILITY
Whenever a vehicle subject to this service update enters your vehicle inventory, or is in your facility
for service in the future, and the vehicle is still covered under the New Vehicle Limited Warranty,
you must take the steps necessary to be sure the service update correction has been made before
selling or releasing the vehicle.

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 tools,
equipment, 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 dealer for information on whether your vehicle may benefit from the information.

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