[VaerO]

Dita may have hit her first bump!! I think the "Electrochromatic rear view mirror" (auto dim)  may have stopped working. I noticed a lot of glare from cars behind me tonight as it wasn't dimming the on coming light. It also won't respond when I press or hold on the power button, its stuck on on.

Does anyone know any troubleshooting technquies?

[Shambles]

Is the green "on" light illuminated? I'm guessing so as you say it seems to be stuck "on".

I'd do the old battery disconnect job.

[VaerO]

Yeah the lights on and doesn't respond to the button being pressed. I'll give the battery trick a go and see what happens, but is isn't turning the acc on and off pretty much the same thing?

[Shambles]

I don't think turning the key off resets the BCM (which the device is coupled to).

Give it a go.

[Phil №❶]

Disconnect the battery, that'll give the BCM something to think about.

[VaerO]

BCM?

[Phil №❶]

Body Control Module, handles all the electrical things that the ECU Engine Control Unit doesn't.

[rustynutz]

I love it when you talk dirty, Phil.... 

[VaerO]

Body Control Module, handles all the electrical things that the ECU Engine Control Unit doesn't.

Learn something new every day. So is there a ruff time i should leave it unconnected?

[Shambles]

30 minutes is the usual recommended timescale

[Phil №❶]

I love it when you talk dirty, Phil.... 

 

[Phil №❶]

Body Control Module, handles all the electrical things that the ECU Engine Control Unit doesn't.

Learn something new every day. So is there a ruff time i should leave it unconnected?

Some info 4 u.

2010 BCM.pdf - Google Drive

It's the latest model I have info for, so later models most likely do additional things as well.

[Shambles]

Thanks Phil

Strange that there's no mention of the auto-dimming RVM - maybe it truly is a standalone 12V feature.

Still, won't do any harm to still try the battery disconnect trick.

[Phil №❶]

This info is for FD 2010 model which is where my data ceases. Now if someone had a GD equivalent, that would be nice.

Or as Agnes Brown says, "That's nice."