Cargo Lights on with Reverse Lights

Old School Mechanic · June 17, 2018

Here's what I did. I wanted mine to work in both positions, come on in reverse and with the switch the back up lights would light.

So all I needed was a wire that would fit and not fall out. It's a paper clip with a piece of shrink tube on it bent in a "U" so you can push it in there.

Guys were having trouble with the diode because the wire is too thin, you only need about a half an inch of wire exposed.

As far as it being dark out for them to come on with the fob...that's true...or you could just cover the light sensor in the middle of the dash.

I put some bright led's in the step too.

Morenar · December 6, 2018

Good Day all,

I just did this mod and noticed that my radio stayed on after locking my doors. I also noticed the cargo light indicator on the switch was on as well. It wasn't until I opened and closed my drivers door that the radio shutoff. Any ideas?

Neallynein · December 6, 2018

I noticed the same thing as well one day. Did the same thing and haven’t noticed it since.

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Ravenkeeper · December 6, 2018

32 minutes ago, Neallynein said:

I noticed the same thing as well one day. Did the same thing and haven’t noticed it since.

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38 minutes ago, Morenar said:

Good Day all,

I just did this mod and noticed that my radio stayed on after locking my doors. I also noticed the cargo light indicator on the switch was on as well. It wasn't until I opened and closed my drivers door that the radio shutoff. Any ideas?

Never noticed the radio staying on, but I do know that the cargo light switch indicator will come on in Reverse. I did the diode mode for cargo with reverse, and my son noticed the indicator was on one day shortly after doing the mod.

goeb34 · December 7, 2018

Here's what I did. I wanted mine to work in both positions, come on in reverse and with the switch the back up lights would light.
So all I needed was a wire that would fit and not fall out. It's a paper clip with a piece of shrink tube on it bent in a "U" so you can push it in there.
Guys were having trouble with the diode because the wire is too thin, you only need about a half an inch of wire exposed.

As far as it being dark out for them to come on with the fob...that's true...or you could just cover the light sensor in the middle of the dash.

I put some bright led's in the step too.

How is this method working so far? I like the way you did it so seeing if it still works just as good a few months later

Deadpoollane · December 7, 2018

Good Day all,

I just did this mod and noticed that my radio stayed on after locking my doors. I also noticed the cargo light indicator on the switch was on as well. It wasn't until I opened and closed my drivers door that the radio shutoff. Any ideas?

One day my reverse lights wouldn’t go off, I had to take the thing out.

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Grjfer · December 7, 2018

15 hours ago, goeb34 said:

How is this method working so far? I like the way you did it so seeing if it still works just as good a few months later

I had this on my 2015 GMC Sierra for 22 months, never had an issue. For the jumper I used a piece of thermostat wire. As a matter of fact I took the wire out when I trade in my 15 for a 2018 GMC Sierra and installed it on that one. Working perfectly currently.

Bobaloo22 · December 8, 2018

I finally did this mod last week, used diodes I bought from eBay. Love it, huge difference.

Grjfer · December 8, 2018

Something I just noticed today, is while in motion if you put the drive selector in neutral and turn on the cargo light my backup camera comes on. It will also do it with the drive selector in Park, and the engine running.

Linecapt · December 10, 2018

Hmm. Will have to try this. Could Grjfef have wired something wrong?

Grjfer · December 10, 2018

Thinking the camera is triggered of the reverse light.

Crstfr · December 10, 2018

On 12/7/2018 at 7:37 AM, Deadpoollane said:

One day my reverse lights wouldn’t go off, I had to take the thing out.

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probably because you dont have a diod in the mix there. just strait wire.

Morenar · December 10, 2018

On 12/6/2018 at 5:10 PM, Neallynein said:

I noticed the same thing as well one day. Did the same thing and haven’t noticed it since.

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I just did it again today. I happen to hop into the passenger seat today and turned on the ignition to refresh my SiriusXM radio. I then turned the car off and closed and lock the passenger door and the radio continued to play. Wasn't till I opened the drivers door and that it turned off.