Mirror and bed lights on with reverse mod???

[skav]

I did this mod on my 15 and 17 and loved it. Has anybody done this on the 2020 yet?

 

 

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[redwngr]

When you want both to come on, can't you just push the switch like before? 

 

EDIT:

I decided to download the 2020 sierra manual.

The accessory lighting works much different than before.

 

2020 Sierra manual:

The Cargo light button on the headlight control switch controls the 'task lights':

 

If equipped, task lighting projects light from the outside mirrors away from the vehicle.
While the vehicle is parked, press K to select one of the following options:
. Left and Right Task Lights Illuminated
. Left Task Light Illuminated
. Right Task Light Illuminated
. Left and Right Task Lights Off

If the vehicle leaves a parked position, the lights will immediately turn off.

 

If the vehicle is off, the lights will stay on for approximately 10 minutes.

If any Task lights are on, if the button has not been pressed after approximately 5 seconds, pressing it again will turn off all Task Lights. 

 

 

Then, the Cargo Lamp  button: 

 

Exterior Cargo Lamps
The cargo lamps provide more light in the cargo area or on the sides of the vehicle, if needed. The lamps
inside the pickup box, in the tailgate handle, for the hitch, and/or the cargo mirror lamps also turn on,
if equipped.

 

If the vehicle is in P (Park), R (Reverse), or N (Neutral) the Cargo Lamp Switch causes the lights to cycle through the following states for each button press:

- Initial Press:
- CHMSL/Cargo Bed Lights - On

- Cargo Mirror Lights - On
- Cargo Switch Indicator (if equipped) - On

 

- Next Press: (if with in 5 seconds of the previous button press):
- CHMSL/Cargo Bed Lights - On
- Cargo Mirror Lights - Off
- Cargo Switch Indicator (if equipped) - On

 

- Next Press:
- CHMSL/Cargo Bed Lights - Off
- Cargo Mirror Lights - Off
- Cargo Switch Indicator (if equipped) - Off

 

Become familiar with and follow all state and local laws that apply to cargo lamp operation.

 

 

[skav]

When you want both to come on, can't you just push the switch like before?
 
 

I don’t think that works unless your in park.

The other mod would turn on the mirror lights and beds lights when you shifted to reverse.


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[redwngr]

Just now, skav said:

I don’t think that works unless your in park.

The other mod would turn on the mirror lights and beds lights when you shifted to reverse.


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Mirror lights on mine works in park, reverse and neutral.  Cargo lamp goes off if out of park.

 

2018 manual:

Press the switch to turn the cargo lamp on or off. An indicator light will turn on when the lamp is turned on, if equipped. The shift lever must be in P (Park) to operate the cargo lamp.

The lights on the outside rearview mirrors turn on if the shift lever is in R (Reverse), N (Neutral), or P (Park).  

 

 

Most of the time, I leave the mirror lights off --- but when they are needed, they are nice!

[Lee Vestal]

I just hit the bed light switch and they come on in reverse. Not sure if it was something in the menus.

[Chrisw253]

cargo lights, if switched on, will come on in park and reverse