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NHTSA ID Number: 10183192
Manufacturer Communication Number: 20NA163
Summary
This technical bulletin provides repair information to correct a customer concern of Rearview Camera Displaying Narrow Guidelines and Zoomed Out/Fisheye Appearance.
SEOCONTENT-START
Copyright 2020 General Motors LLC. All Rights Reserved.
Service Bulletin Bulletin No.: 20-NA-163
Date: November, 2020
TECHNICAL
Subject: Rearview Camera Displaying Narrow Guidelines and Zoomed Out/Fisheye Appearance
Brand: Model:
Model Year: VIN: Engine: Transmission:
from to from to
Chevrolet Silverado 2500HD/
3500HD 2020 2020
All All
GMC Sierra 2500HD/
3500HD 2020 2020
Involved Region or Country United States, Canada, Mexico, Israel, Palestine, Chile (West), Paraguay (West),
Uruguay (West), Thailand (ASEAN)
Additional Options (RPOs) Equipped with RPO UVI
Condition
Some customers may comment on narrow guidelines and a zoomed out/fisheye
appearance from the rearview camera.
5642270
Cause
The cause of the condition may be an issue with the Video Processing Control Module
(VPCM) calibration distorting the view from the rearview camera and decreasing the
width of the guidelines.
Page 2 November, 2020 Bulletin No.: 20-NA-163
Correction
Utilizing the MDI or GDS/GDS2 tool, verify the VPCM Bootloader P/N is 84809742 then
reprogram the VPCM. Follow Service Procedure below.
If the VPCM Bootloader P/N is NOT 84809742 (ex. 84650325, 84513776), the VPCM
must be replaced with the latest version. Refer to Parts Information and the EPC for the
latest VPCM and program with the latest released software.
Service Procedure
Caution: Before downloading the update files, be sure
the computer is connected to the internet through a
network cable (hardwired). DO NOT DOWNLOAD or
install the files wirelessly. If there is an interruption
during programming, programming failure or control
module damage may occur.
Note: Carefully read and follow the instructions below.
• Ensure the programming tool is equipped with the
latest software and is securely connected to the
data link connector. If there is an interruption
during programming, programming failure or
control module damage may occur.
• Stable battery voltage is critical during
programming. Any fluctuation, spiking, over
voltage or loss of voltage will interrupt
programming. Install a GM Authorized
Programming Support Tool to maintain system
voltage. Refer to www.gmdesolutions.com for
further information. If not available, connect a fully
charged 12 V jumper or booster pack
disconnected from the AC voltage supply. DO
NOTconnect a battery charger.
• Turn OFF or disable systems that may put a load
on the vehicles battery such as; interior lights,
exterior lights (including daytime running lights),
HVAC, radio, etc.
• Clear DTCs after programming is complete.
Clearing powertrain DTCs will set the Inspection/
Maintenance (I/M) system status indicators to NO.
Bulletin No.: 20-NA-163 November, 2020 Page 3
5644477
5431207
Page 4 November, 2020 Bulletin No.: 20-NA-163
Important: Techline Connect and TIS2WEB screens
shown above.
Important: : If the Same Calibration/Software
Warning is noted on the TLC or SPS Summary screen,
select OK and follow on-screen instructions. The
system will generate a warranty claim code (WCC) for
documentation purposes only. Perform service
information (SI) diagnostics to determine the cause of
the condition. Use the applicable labor operation code
when submitting a warranty claim. Do NOT use the
WCC with the warranty claim submission.
Important: When programming a module in GM’s new
Vehicle Intelligence Platform, or VIP, the power mode
(ignition) needs to be off or errors may occur. This
involves the 2020 Chevrolet Corvette, Cadillac CT5 and
CT4, as well as the upcoming full-size Chevrolet, GMC,
Cadillac SUVs and Buick Envision. Serial Data
Message Authentication also needs to have the
ignition off.
1. Reprogram the Video Processing Control Module.
Refer to K157 Video Processing Control Module:
Programming and Setup in SI.
5644478
Bulletin No.: 20-NA-163 November, 2020 Page 5
5431209
Important: To avoid warranty transaction rejections,
you MUST record the warranty claim code provided on
the SPS Warranty Claim Code (WCC) screen shown
above on the job card. Refer to callout 1 above for the
location of the WCC on the SPS screen
2. Record SPS Warranty Claim Code on job card for
warranty transaction submission.
Parts Information
Causal
Part
Description Part
Number
Qty
X Video Processing
Module
84829911
1
84829910
84842813
84784629
84841791
84863042
84804407
84773855
84838506
Page 6 November, 2020 Bulletin No.: 20-NA-163
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation Description Labor Time
*2810845 Video Processing Control Module Reprogramming with SPS Use Published Labor
Operation Time
Important: *To avoid warranty transaction rejections, carefully read and follow the instructions below:
• The SPS Warranty Claim Code must be accurately entered in the “SPS Warranty Claim Code” field of the transaction.
• When more than one Warranty Claim Code is generated for a programming event, it is required to document all Warranty
Claim Codes in the “Correction” field on the job card. Dealers must also enter one of the codes in the “SPS Warranty Claim
Code” field of the transaction, otherwise the transaction will reject. It is best practice to enter the FINAL code provided by
SPS/SPS2.
Warranty Claim Code Information Retrieval
If the SPS Warranty Claim Code was not recorded on
the Job Card, the code can be retrieved in the SPS
system as follows:
1. Open TLC/TIS on the computer used to program
the vehicle.
2. Select and start SPS/SPS2.
3. Select Settings.
4. Select the Warranty Claim Code tab.
The VIN, Warranty Claim Code and Date/Time will be
listed on a roster of recent programming events. If the
code is retrievable, dealers should resubmit the
transaction making sure to include the code in the SPS
Warranty Claim Code field.
Version 2
Modified Released August 24, 2020
Revised October 29, 2020 – Updated correction section with P/Ns and added table to
Parts Information
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 equipment, tools, 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 GM dealer for information on whether your vehicle may benefit from the
information.
WE SUPPORT VOLUNTARY
TECHNICIAN
CERTIFICATION
SEOCONTENT-END
2 Affected Products
Vehicles
MAKE | MODEL | YEAR |
CHEVROLET | SILVERADO 2500 | 2020 |
GMC | SIERRA 2500 | 2020 |
1 Associated Document
Manufacturer Communications
MC-10183192-9999.pdf 116.005KB
Reprogramming
GM Diagnostic/Programming (TIS2Web)
Approved J2534 Device with TIS2WEB can reprogram 1996 and later All GM Modules.
To obtain the latest electronic controller calibration information for your vehicle, go to https://tis2web.service.gm.com/tis2web and enter the vehicle's 17 character Vehicle Identification Number (VIN) and select 'Get CAL ID’.
You can then compare the latest part number with the actual number installed on the vehicle to determine if a reprogram is needed.
The Service Programming System (SPS) application is part of the TIS2Web system. To program an ECU, the SPS application must communicate with the vehicle control modules using the proper J2534 programming interface tool.
The following are the supported interface tools:
The Tech 2 supports model years 1996 and beyond. With the addition of the CAN Diagnostic Interface (CANdi) module, Tech 2 is fully backward compatible with current Tech 2 functionality and operates transparently when diagnosing non-CAN-equipped vehicles.
Servicing the next generation Global A vehicles will require the diagnostic software, GDS2, Global Diagnostic System 2 running on a local PC device while the MDI is connected to the vehicle. The GM MDI is the Global Diagnostic tool for future vehicles starting with Global A vehicles.
The GM MDI was introduced in the fall of 2007 for Pass-Thru programming and offers faster programming speed. It can be used to perform Pass-Thru programming on all vehicles built since 1996 and into the future. Click here to view a list of GDS supported vehicles.
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