GM IOH-PRG/IOM-PRG
Reverse camera programmer for select GM vehicles equipped with MyLink IOH or IOM Radio
IOH = IO5/IO6 (8” screen): KIT628
IOM = IOH (4” screen): KIT722
BHM
04/15/16
NTV-DOC238
3950 NW 120
th
Ave, Coral Springs, FL 33065 TEL 561-955-9770 FAX 561-955-9760
NTV-KIT628/KIT722
04/15/16
12v Constant
CAN LOW
Ground
CAN HIGH
Overview
Kit Content
GM IO-PRG Pinout
GM OBD2 Programmer Harness Pinout
RPO Sticker example
Pin #
Description
Color
1
12v Constant Power (+)
Yellow
2
-Not Used-
White/Blue
9
CAN HIGH
Brown/Black
10
Ground (-)
Black
18
CAN LOW
Brown
Found in glove box or spare tire well
GM OBD2
Programmer
Harness
NTV-HAR247
GM IO-PRG Module
NTV-ASY166
Video Input RCA
NTV-CAB096
USB Cable (updates)
NTV-CAB009
NTV-HAR247 Wire Side View
Wire Side View
NTV-DOC238
The GM IOH-PRG & IOM-PRG programs reverse camera on select GM vehicles equipped with the MyLink
(model IOH) 8” color media screens and 4” (model IO4) media screens. Forcing camera(s) to display at any
time is only available in conjunction with NTV-KIT629 (NTV-KIT630 includes both). The radio code may be
confirmed by locating the RPO sticker (see below) typically found inside the glove box.
BHM
Agreement: End user agrees to use this product in compliance with all State and Federal laws. NAV-TV Corp. would not be held liable for misuse of its product.
If you do not agree, please discontinue use immediately and return product to place of purchase. This product is intended for off-road use and passenger
entertainment only.
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NTV-DOC238
GM MyLink Programming (with module)
LED Response
Description
1 flash
Waiting for Ignition… (Turn ignition to ON)
2 flashes
Waiting for Vehicle VIN…
3 flashes
Query Vehicle (Reading/decoding the VIN and vehicle components)
4 flashes
Programming…
5 flashes
Programming Complete
6 flashes
No Programming Needed (Already programmed)
7 flashes
Radio Not Supported (Verify this vehicle is equipped with IOH Radio Code)
8 flashes
Out of Licenses (Contact NAV-TV to purchase more licenses)
Factory GM HMI (Human Machine Interface)
DISCLAIMER: Do NOT disconnect the programmer during programming – this may result in complete radio brick
(factory limitation). NAV-TV is not responsible for failure to comply with this rule.
1. Begin by connecting the provided GM IO-PRG Module to the OBD2 Harness via the 18-pin connector.
2. With the key OFF, connect the red OBD2 Programmer connector (with module) to the factory OBD2
port.
a. Watch LED on module before engaging ignition
3. Turn the key to the IGNITION ON position. Watch the LED on the IO-PRG Module and verify flash codes
below.
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04/15/16
4. Wait for radio to reboot fully.
5. Cycle the vehicle key once (turn off, wait 5 seconds, turn back to IGNITION ON)
6. Verify 5 FLASHES from LED on module.
7. Disconnect the OBD Harness and module from the OEM OBD2 port.
8. Verify that the radio accepted the program properly by placing the vehicle in reverse (vehicle may need
to be running). The reverse screen should appear (or black screen/attention text if no camera is
connected yet) when in reverse only.
9. UPDATE: if nothing happens in reverse after
programming, disconnect the 20-pin power
plug (black) at the OEM HMI module, then
reconnect to reset the system manually. Once
the radio has reset and booted fully, test for
rear camera activation again.
NOTE: There is NO De-Programming option with either GM IO-PRG kit. Once programmed, this system
modification will remain forever.
Agreement: End user agrees to use this product in compliance with all State and Federal laws. NAV-TV Corp. would not be held liable for misuse of its product.
If you do not agree, please discontinue use immediately and return product to place of purchase. This product is intended for off-road use and passenger
entertainment only.
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GM IO-PRG Camera Installation
Vehicle
HMI Location
Cadillac ATS/CTS
Directly below glove box
Cadillac SRX
Below/behind glove box
Corvette
Driver’s kick panel
Silverado/Sierra
Behind glove box (high)
Colorado/Canyon
Behind screen (low)
Provided RCA
Factory wires
RCA Center
PIN 5, Gray/Yellow
RCA Shield
PIN 6, White/Blue
NOTE: the wires at this location are normally populated (existing).
If not, you must pop the pin-lock tab open and populate the pin
location as shown with the supplied Video Input RCA.
Factory GM HMI (Human Machine Interface)
Known HMI
Locations:
Pin Side View
04/15/16
NTV-DOC238
The camera in the GM MyLink systems connects at the OEM HMI Module. The location of this module varies
by vehicle.
1. Disconnect the gray, 12-pin plug from the OEM
HMI circled above.
2. Cut the wires at pins 5 & 6 in half (typically
gray/yellow, white/blue), a few inches from the
connector.
3. Solder the provided Video Input RCA to the plug-
side of the cut wires as follows:
4. Reconnect the 12-pin plug back to the HMI module at the proper port.
5. Power your camera, and connect your camera signal to the provided RCA end from step 3. Place the
vehicle in reverse to verify the camera image appears clear with no distortion.
Agreement: End user agrees to use this product in compliance with all State and Federal laws. NAV-TV Corp. would not be held liable for misuse of its product.
If you do not agree, please discontinue use immediately and return product to place of purchase. This product is intended for off-road use and passenger
entertainment only.
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NTV-DOC238
GM IO-PRG USB Updater/Additional Licenses
Double-click to
check VIN usage
To verify that this module has been installed previously, you may download the GM IO-PRG proprietary
USB Updater to check stored VIN’s used previously, if any. The downloadable ZIP file is located on the
NAV-TV website on the GM IOH-PRG (8”)page:
https://navtv.com/media/products_file/2016/02/11/GM-IOH_SW.zip
or the GM IOM-PRG (4”) page: https://navtv.com/media/products_file/2016/02/11/GM-IOM_SW.zip
Click on the button at the bottom to download.
The GM IO-PRG line features an option for NAV-TV dealers to purchase licenses instead of multiple
pieces of hardware, reducing overhead costs. Contact NAV-TV (561-955-9770) for more information
regarding purchasing one single programmer, allocated for use in 10, 20 or more vehicles. Additional
licenses may also be sent via email.
BHM
04/15/16
Agreement: End user agrees to use this product in compliance with all State and Federal laws. NAV-TV Corp. would not be held liable for misuse of its product.
If you do not agree, please discontinue use immediately and return product to place of purchase. This product is intended for off-road use and passenger
entertainment only.
5 | P a g e
BHM
04/15/16
NTV-DOC238
Agreement: End user agrees to use this product in compliance with all State and Federal laws. NAV-TV Corp. would not be held liable for misuse of its product.
If you do not agree, please discontinue use immediately and return product to place of purchase. This product is intended for off-road use and passenger
entertainment only.
6 | P a g e
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