It's not necessary but many Honda V6 owners on the forums recommend to avoid future issues. She might never have issues and hopefully doesn't. She should also have the 9 speed transmission which is better than my 6 speed with less issues like torque converter recall. VCM when activated still makes it slip and uses the electronic motor mounts so vibrations are not noticed as much from an unbalanced motor.it is a 2021, just looked at vcm2, no support.....or so i think.
Here car runs smooth.
Weird "side effect" many noticed with it disabled is less downshifting and allowing more coasting to lights and stop signs.
Like BITOG many come across the details when looking for solutions to problems like oil burning, CEL's etc.