2021 gmc 2500 HD snowplow prep

[Jkomnick]

I just bought a 2021 gmc 2500 HD with the snow plow prep package. It came with a cord that has an eyelet on one end, I'm assuming it goes on the battery, and the other end has certain kind of plug end. Is this for a special kind of strobe light?  

[2021 HD]

There is a hook up for a strobe light.

[unit]

It sounds like the block heater cord that plugs into the receptacle just in front of the left front tire.  Can you post a picture of the cord you have

 

 

Edited May 31, 2021 by unit
Added photo

[MTU Alum]

There is another wire harness you get with snowplow prep.  It plugs into generator and helps with voltage drops when the plow is in use.  Alot of guys don't use it but, its recommended to use it.

 

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