GLOBAL SAFETY FIELD INVESTIGATIONS
DCS4952
URGENT - DISTRIBUTE IMMEDIATELY
Date:

January 10, 2019

Subject: N182201852 - Service Update
Navigation Map SD Card Does Not Read
Models: 2019 Chevrolet Silverado 1500 (New Model)
2019 GMC Sierra 1500 (New Model)
To:

All General Motors Dealers

General Motors is releasing Service Update N182201852 today. The total
number of U.S. vehicles involved is approximately 22,690. Please see the
attached bulletin for details.
Global Warranty Management (GWM)
The Investigate Vehicle History (IVH) screen in the GWM system will be updated
January 11, 2019. A list of involved vehicles in dealer new inventory is attached to this
message. Please hold all warranty transactions until IVH has been updated.
END OF MESSAGE
GLOBAL SAFETY FIELD INVESTIGATIONS

Service Update
N182201852 - Navigation Map SD Card Does Not Read
Release Date:
Attention:

January 2019

Revision:

00

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.

Make
Chevrolet
GMC

Model
Silverado 1500 (New Model)
Sierra 1500 (New Model)

Model Year
From
To
2019
2019
2019
2019

RPO

Description

Involved vehicles are marked “open” on the Investigate Vehicle History screen in GM Global Warranty Management
system. This site should always be checked to confirm vehicle involvement prior to beginning any required inspections
and/or repairs.
Condition
Correction

In some vehicles, the navigation system will not work and the customer may see an error message on
the screen.
Install or initialize the navigation SD Card as required.

Parts
Quantity
1

Part Name

Part No.
84528704

Card-Navigation Data

Reminder: Parts may be removed from Retail Inventory Management (RIM). Dealers should review the affected parts
to confirm RIM managed status. Parts may have quantity limiters in effect.
Warranty Information
Labor
Operation
9104262

Description
Verify Navigation System Function, Install SD card if Required

Labor
Time
0.2

Trans.
Type
ZFAT

Net
Item
N/A

Service Procedure
After a new SD Card has been installed, whether it be for the first time during new car prep or a replacement part for
service, a series of on screen questions will need to be answered, along with a procedure, to properly setup the new SD
Card. Failure to answer the questions correctly or failure to perform the procedures will result in the navigation system
being inoperative.
Follow the steps below:
Note: Do not remove the SD Card with the ignition ON as this could corrupt the SD Card and cause
navigation related errors.
Note: Do not swap SD Cards from vehicle to vehicle, SD Cards are VIN specific.
Note: When inserting the SD card, make sure that the switch is in the correct position (UP). Insert the card straight and
not on an angle, since the switch may rub on the side of the card slot and change position.

5207511

Copyright 2019 General Motors. All Rights Reserved.

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Service Update
N182201852 - Navigation Map SD Card Does Not Read
Correct switch position (up)

5207515

Incorrect switch position (down)
1.

Ensure the ignition is off.

2.

If the card is not installed in the X83 Auxiliary Audio Input, locate the new SD Card in the loose ship parts bag and
insert it into the slot making sure it is fully seated.
Note: There should be an audible ‘click’ upon proper insertion.

3.

Place the Ignition in the ON position, with the infotainment system in the ON position.

If the Vehicle is a SOLD unit (Demo Mode Off)
4.

The first screen to appear will read, Access and Input Data Permissions. Select Show Permissions.

5.

The next screens will ask for certain access and permission. Select ALLOW on all screens.
Note: If DENY is selected on any screen the Navigation system will be inoperative.

6.

If successful, the last screen will display a Navigation Map.
Note: if the vehicle is a SOLD unit, the SD card will learn the VIN of the vehicle it is installed in on the first ignition
cycle.

If the Vehicle is a DEMO or UNSOLD unit (Demo Mode On)
7.

Click navigation icon and allow it to launch.

8.

After map has displayed, close the app by pressing the home button.
8.1 If there is a navigation error, refer to Navigation System Malfunction (and SD Card Errors) in SI.
8.2 Once the error is corrected, proceed with the following steps.

9.

Ignition OFF – ensure vehicle goes to sleep.

10. Repeat steps 3, 7, and 9 a total of 4 times to properly learn the VIN of the vehicle to the card.

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Service Update
N182201852 - Navigation Map SD Card Does Not Read
Dealer 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.
All new, used, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc. in dealers' possession
and subject to this bulletin must be held and inspected/repaired per the service procedure of this bulletin before customers
take possession of these vehicles. Involved vehicles must be held and not delivered to customers, dealer-traded,
released to auction, used for demonstration, or any other purpose.
All GM Certified Used vehicles currently in the dealers’ inventory within the Certified Pre-Owned Inventory System
(CPOIS) will be de-certified and must be held and remedied per the service procedure in this bulletin. Upon submitting
an accepted/paid warranty transaction in the Global Warranty Management (GWM) system, the vehicle can be re-certified
for sale within the CPOIS system, or once again be used in the CTP program.

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.

We Support
Voluntary Technician
Certification
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