GM Bulletin No.: 13429
Date: February 2014

Service Bulletin

SERVICE UPDATE
SUBJECT:

Service Update for Inventory and Customer Vehicles
Hazard Warning Lamps Activation When Vehicle Unattended
Expires with Base Warranty

MODELS:

2014 Cadillac CTS

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 hazard warning switch on certain 2014
model year Cadillac CTS vehicles. Software in the hazard warning switch may cause the activation
of the hazard warning lamps when the vehicle has been turned off for approximately 10 minutes.
If the hazard warning lamp activation goes unnoticed, it could drain the battery.
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
return for service, for any reason, and are still covered under the vehicle's base warranty should
also be checked for vehicle eligibility.

Copyright 2014 General Motors. All Rights Reserved.

Page 2

February 2014

Bulletin No.: 13429

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
23459788
23459789

Description
SWITCH, HAZARD WRNG (w/Lane Departure
Warning) (RPO UFL)
SWITCH, HAZARD WRNG (w/o Lane Departure
Warning ) (RPO UFL)

Quantity/Vehicle
1
1

SERVICE PROCEDURE

3462126

1. Remove the hazard warning switch. Refer to Hazard Warning Switch Replacement in SI.
2. Install a new hazard warning switch. Refer to Hazard Warning Switch Replacement 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
9100331

Description
Hazard Switch Replacement

Labor
Time
0.4

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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