2020 HD power extending tow mirrors on 2020 1500 LTZ?

[NavyVette]

I have a 2020 1500 LTZ with the technology package and tow mirrors. Of course on the 1500 they don't power extend.

 

Has anyone retrofitted the equivalent HD mirrors?

[Brian 2020 Sierra 1500]

The dealer put tow mirrors on my 2020 Sierra 1500 and the lights on them don’t work but the power tilt and angle work.

I was wondering if the ECT or a body module needs to be flashed?

[Transient]

3 hours ago, Brian 2020 Sierra 1500 said:

The dealer put tow mirrors on my 2020 Sierra 1500 and the lights on them don’t work but the power tilt and angle work.

I was wondering if the ECT or a body module needs to be flashed?

Might need a different wire harness and reflash of BCM

Edited January 9, 2022 by Transient