GM Bulletin No.: 13318
Date: November 2013

Service Bulletin

SERVICE UPDATE
SUBJECT:

Service Update for Inventory and Customer Vehicles
Power Sliding Rear Window Inoperable
Expires with Base Warranty

MODELS:

2014 Chevrolet Silverado 1500
2014 GMC Sierra 1500
Equipped with Power Sliding Rear Glass (A48)

Due to part availability, involved VINs will be loaded into the Global Warranty Management
System – Investigate Vehicle History Application in phases.
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 power sliding rear glass regulator on
certain 2014 model year Chevrolet Silverado and GMC Sierra 1500 vehicles, equipped with the
power sliding rear window feature (A48). On these vehicles, the plastic components of the
cable/pulley assembly may deform, causing the feature to become inoperative. If the window is
in the open position when it becomes inoperative, the window defogger cannot be activated.
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.
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
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November 2013

Bulletin No.: 13318

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
23441999

Description
REGULATOR, RR SLDG WDO

Quantity/Vehicle
1

SERVICE PROCEDURE
1. Remove the rear sliding window regulator. Refer to Rear Sliding Window Regulator
Replacement (Extended Cab) or Rear Sliding Window Regulator Replacement
(Crew Cab) in SI.
2. Install a new rear sliding window regulator. Refer to Rear Sliding Window Regulator
Replacement (Extended Cab) or Rear Sliding Window Regulator Replacement
(Crew Cab) in SI.
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
9100252

Description
Rear Sliding Window Regulator Replacement

Labor
Time
0.8*

* The Labor Time Guide will be updated in January to reflect the new labor time of 0.8 hours.
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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