Display stuck

[MartyL]

The left-hand portion of the display behind the stearing wheel is stuck on "Clock". When I scroll the left wheel while pressing it, the only option is "Clock", What do I do?

 

[oktane]

Try a reset by holding down both scroll wheels.

 

[MartyL]

I did that but I get confused about whether the door should be open or closed, how long I should hold the wheels down and if I should keep my foot on the brake and if so for how long.

 

[DerbyDave]

A soft reset is just pressing the two scroll wheels until the displays go dark.

 

[MartyL]

The left side (which I now know is called the instrument cluster) never goes dark when I do that although the touchscreen does. I also tried the "deep" method where you enter the car, close the doors and go to Controls>Safety and Security>Power Off. Then don't touch anything for 5 minutes.

 

[DerbyDave]

Can you bring up the selected display on the right side using the right scroll wheel? If so, you may have a defect requiring service. Does your car have MCU1? I think the instrument cluster does not reset on the "earlier" cars. The power off reset you performed should have taken care of that though.

 

[MartyL]

I'm a little embarrassed because when I said "When I scroll the left wheel while pressing it..." that's the wrong approach. The correct approach is the press the wheel until the options appear, let go, and then scroll the wheel. Problem solved.

 

[DerbyDave]

When reading your post, I wondered about that, but I think on mine I have done both. Anyway, glad it works!

 

[MartyL]

Me to.

 

[PCMc]

@MartyL - Glad you have your problem solved, but regarding doing the reset of the instrument cluster, MCU1 works different from MCU2.

On an MCU2 setup, doing the double scroll wheel will reset both the main display and the instrument panel (IP) at the same time. This is because the Instrument panel is actually a slave display that runs off of the main MCU2 processor. I'm guessing you may still have MCU1 since you commented that the IP never goes blank when you reset the main screen.

For the older MCU1 setup, the IP has it's own processor and is reset separately from the main display. That's why it has a separate reset from the main screen. You reset the IP by pressing and holding the two buttons ABOVE the scroll wheels. Just press both simultaneously and hold until you see the IP go black and let go. Does not need to be in conjunction with resetting the main screen and do not need to worry about brake pedal, door open/closed, etc.

 

[MartyL]

Thank you for the excellent information. Yes, I'm sure we have MCU1 since we bought "Tessie" in June of 2017.