It would be really nice if you can some pictures and point out steps 1,2,3……Hello I just bought a 2021 C-HR here in the US.
After an hour of watching videos and struggling with this,
I removed the whole housing by using removal tool towards the back of the triangle closest to the windshield.
The housing is held on by 3 snap in connectors, 2 at the bottom and 1 at the top,
Pull from botton, and swing the assembly down. Very easy
Remove cable harness
Remove silver screws to release lens cover (MUCH different than previous years)
This took about 10 min start to finish after I determined this was not the same by every video on youtube.
Hope this helps.
we need you!