Gear position not displayed, a constant line, and the reverse radar is not working.

The gear is constantly showing in N position. There's no response when shifting to A or reverse gear. Seeking advice from experts. What might be the issue?

I've upgraded my 2009 Scirocco with the 187b head unit, but the reverse camera doesn't switch the screen when reversing, although the radar works fine. Interestingly, the reverse camera works normally when the car is off, but not when the engine is running. I've already replaced the head unit and the reverse camera, but the issue persists. Any experts out there who can help?

Why did the reverse gear suddenly stop working, but it was fine an hour later, on a Trailblazer?

Left reverse light not working?

Do your reversing assist lines move with the steering wheel?

Can the reversing assist lines be adjusted?

Guys, why isn't the reverse radar on the RDX beeping?

Why is your gear position display on the top, while mine is at the bottom?

Gear position not displayed, a constant line, and the reverse radar is not working.

How to fix the issue of the gear position light not illuminating sometimes for the '21 model Compass when in Reverse (R) gear?