$1000 Honda Mirror?

Anyone familiar with later model Honda's and how their stealerships work?

Without my knowledge, my 91 year old neighbor set up an appointment to have the pass side mirror repaired, at the stealer, on her 2017 Accord EX-L. It moves left-right, but not up and down. The glass shakes around.

I have her estimate that says they're going to replace it. How do they know it needs to be replaced?

The estimate shows:

• 441.67 for the mirror
• 375.00 for "calibrate lane watch camera"
• 2 hrs labor @ $70 per hr.
• Misc.

I have found the mirror at Hondapartsnow.com for $310.05. (They do show the full retail price as $441.67)

What do they do for $375 to calibrate the camera?

The $131 extra for the mirror is questionable, but mostly, my rip-off radar is screaming regarding the calibration charge.

What is the calibration thing about? I'm not much on newer cars. Should they negotiate?