Reverse Camera Problems
Identify which camera function is failing
Record whether reverse selection changes the screen, whether a picture appears, and whether that picture is available manually. Keep OEM camera retention separate from fitting a new camera. Identify the exact unit, camera system and supplied harness before changing formats or connections.
If an installer isolates a camera or lead, record which part was substituted and the result. Do not report the whole system repaired while another view or trigger still fails. A working AUX picture does not prove that automatic reverse activation is configured correctly.
Firmware and wiring instructions below must match the exact model and camera package. Do not install another firmware variant simply because a different customer did so.
Find help by symptom
Choose the issue below to view the relevant checks, settings and reference images.
Menu names, passwords and camera connections vary by head unit, firmware and vehicle. Use the instructions for your exact installation; the confirmed vehicle cases below apply to the installations described.
Camera app activation
Camera app shows an activation notification
If you get these notifications on your reverse Cam REC app, TEYES Vision app and TEYES DVR app, simply connect the unit to the internet and press the refresh icon on the app screen. This is protected software that belongs to TEYES, as long as your unit is genuine and not stolen, it will be activated following this process.
Connection & power
How do I connect a TEYES reverse camera?
Make sure to not use crimp connectors, soldering is the best and most secure. There have been many reported issues with losening or failed connections using these types.
Please see for diagram and pinouts (here)
Factory camera cuts out randomly
Turn off power setting for the camera in the Settings --> Factory-->168--> "Reverse Power Supply" - Turn Off
Factory camera works through AUX but not the F port
Change the Camera Format from AHD to TVI
Camera works with the engine off, but not when running
This is caused by a voltage drop from the rear light, especially with long vehicles (Long cable run) and/or alot of work being done to it. Adding a relay for reverse light switching and taking power from the main battery or accessories power will resolve this issue.
Picture & image quality
Static or a frozen picture after leaving reverse
This is caused by lose connection on the Yellow RCA plug. Please check
Camera image is blurry or out of focus
Camera image is black and white
Go to Factory Settings --> Password:168 --> Reverse Camera Format --> AHD
Camera interference or flickering
If you are experiencing interference like this, disconnect the negative cable from the camera end.
PLEASE NOTE: There has also been instances of this interference being nothing more than the LED garage light refresh rate confusing some clients thinking its interference with the camera
Green screen: check the camera system format
If your reversing camera is showing up a green screen, you must change your camera system format setting.
Live view
Live view works, but the camera does not appear in reverse
Live View can show a picture even when the head unit is missing the signal that switches it to full-screen reverse mode. On installations that use the supplied TEYES camera’s wired trigger, G5 (Reverse Detect) should receive approximately 12 V DC when reverse is selected.
- Check that the yellow trigger wire on the supplied camera harness is connected to the 12 V supply side of the reverse light, where voltage is present when reverse is selected.
- Trace the yellow trigger wire to pin 5 of the head unit’s G connector (G5). Check for loose connections and confirm the voltage at G5 with a multimeter. If voltage is present at the reverse light but missing at G5, check the wire and its connections along the run.
CANbus warning: If G5 is already connected to a CANbus decoder, do not connect the yellow wire to it. Feeding 12 V back into the decoder can damage it. Check the wiring diagram for your model and vehicle before changing the trigger source.
Factory camera works in reverse but not in live view
Live view is only supported by T'EYES reverse camera
TEYES camera works in reverse but not in live view
You must check your connections, specifically the RED ACC connection.
Live monitoring is green, but the factory camera works in reverse
In the below example, realtime monitoring is showing green screen but the factory vehicle reverse camera works on the unit. This is because the factory reverse camera only has power when in reverse. You need to upgrade the reverse camera in order for this function to work.
Guidelines & image settings
Vehicle door display or dynamic guidelines are missing
If your original head unit did not show this, it generally will not carry over as this is a vehicle option.
There are settings for this found here
Add or remove reversing guidelines
Settings --> Factory --> 1268 --> Car Agreement --> Reverse Parking Line
Mirror the reverse-camera image
Settings --> General --> Mirror view on reverse
Camera image is upside down
Turn it around 180 degrees so the text is on the bottom
Dynamic guidelines move opposite to the steering wheel
Go to Settings --> Factory --> 168 --> Original Car Agreement --> Reversing track reversal
Factory cross-traffic warning arrows are missing
This function is not supported on our units. The example below is not carried over.
360° camera systems
360 reverse camera is slow to appear
REASON 1: You must have ALL 4 x 360 cameras installed. Not doing so will cause a delay on the rear 360 camera
REASON 2: You have a canbus and have not disconnected G5 (reverse detect) from it. This must be wired directly from the G plug to the Reverse Light power.
CC3 / CC3 2K 360: using an F-port camera instead
The F port is disabled in the 360 system. If you want to use the F port for a reverse camera when not installating the 360 camera system, you must install the non-360 firmware on your unit. Make sure to install the correct firmware 2K/Non-2K
Mercedes-Benz Vito W447: side camera still triggers when indicating
It was reported that updating the 4 x APKs resolved this issue.
360 cameras are not showing a picture
Disconnect the 360 cameras and connect 1 at a time and see if an image appears for the respective camera. A fault cable lead out to a camera may cause all of the cameras to go blank.
Vehicle-specific confirmed outcomes
These outcomes were confirmed by customers for the installations described. Check the vehicle, decoder and head-unit details before applying a setting or replacing a part.
Honda CR-Z (2016), CC4 Pro: LaneWatch automatic switching
Symptom: Side-camera video was visible through AUX, but the indicator and stalk button did not trigger the view automatically.
Confirmed outcome: With the separate LaneWatch harness installed, the customer confirmed that changing the trigger setting from IO to CANBUS restored automatic side-camera operation.
What to check: Have support confirm that your vehicle, LaneWatch harness and CAN interface use this trigger method before changing settings. A picture in AUX confirms a video path, not the automatic trigger path.
Applies to this recorded installation: The exact menu path, decoder and firmware were not recorded. This setting is not a universal LaneWatch instruction or a remedy for unrelated microphone or DVR faults.
Toyota Corolla E210 (2020), LUX One: reverse guidelines but black video
Symptom: Reverse switching and guidelines worked, but the original camera picture was black. The camera image could be viewed through the AUX/front-video input.
Confirmed outcome: The customer confirmed that routing the HiWorld CAMERA-IN video connection through the appropriate F-port adapter restored the original reverse-camera image.
What to check: Ask your installer to confirm the camera input and retention adapter for your exact unit and harness. A working reverse trigger does not mean that the camera video is routed correctly.
Applies to this recorded installation: The exact adapter part number and pinout were not established. Do not copy a port or power connection from another kit; this is not a firmware fix or proof of compatibility with all Corolla variants.