Towing 2020 Chevy Colorado

If you fail to turn key to accessory before putting into park some gears will speak to you.

5. With the transmission in D (Drive), turn the ignition to ACC/ACCESSORY. (thanks gb7608)

Forgot to mention, I'm towing a 2015 GM Canyon.

These are the steps I take:

Follow these steps to dinghy tow:

1. Position the vehicle being towed behind the tow vehicle, facing forward and on a level surface.
2. Securely attach the vehicle being towed to the tow vehicle.
3. Apply the parking brake and start the engine.
4. Shift the transfer case to N (Neutral). Check that the vehicle is in N (Neutral) by shifting the transmission to R (Reverse) and then to D (Drive). There should be no movement of the vehicle while shifting.
5. With the transmission in D (Drive), turn the ignition to ACC/ACCESSORY.
6. Disconnect the negative battery cable at the battery and secure the nut and bolt.
7. Shift the transmission to P (Park).
8. Move the steering wheel to make sure the steering column is unlocked.
9. Release the parking brake.
10. Keep the ignition key in the towed vehicle in ACC/ACCESSORY to prevent the steering column from locking.

You put the transmission in park after you get the transfer case in neutral. I go to drive to make sure the TC is in neutral. I turn the key off and go to park with the transmission as it will grind into park with the engine turning. I then lift the negative post on the battery. Just like the manual says in my '17.

Bill, I can't help with the directions. But if your own service manager isn't comfortable he/she should be contacting GM direct for clarification. That sure doesn't give me a warm fuzzy feeling. You might also try calling see if they can assist you, as well as provide clear written directions, so you have the back up for warranty coverage.

There are 2 separate sections in the owner's manual. The section on recreational towing says leave the transfer case and transmission in Neutral but also says to follow the directions for putting the transfer case in Neutral says to place the transmission in Park once it (transfer case) is in Neutral. I'm fairly sure I should leave the transmission in Neutral but don't want to invalidate the warranty.

I'm looking for answers from owners of Chevy Colorados or GM Canyons that tow 4down. Telling me to follow an ambiguous manual that the dealer Service Manage isn't sure about doesn't help

If the owner's manual states what to do, that's what you do.

Follow the advice in the owners manual. That's what it's in the glove box for.

“so I need help from other owners”

Why would Chevrolet misstate in writing how their vehicle should be towed four down?

why don't you believe the owner's manual?
bumpy