According to the HITCH MANUFACTURER you should follow the HITCH MANUFACTURERS install guide. Failure to do so will result in an improperly configured hitch putting undue stress on the vehicle.2018 Tahoe Manual states other wise it says to adjust equalizer after leveling with
According to owners manual pain the automatic level control section you should let it level first then configure the WD Hitch.
The vehicle manufacturers instructions are general in nature and in no way can accommodate for what the hitch manufacturer specifies.
How do I know this? I called and spoke to a hitch engineer because their install guide was vague. He confirmed what I said earlier. If you have an active levelling system, it needs to be completely off when configuring the hitch. Pulling the fuses or the relay for the system is the only sure-fire way to do this.
Think about it.. if it's on when you configure the hitch, it'll automatically inflate to accommodate the additional weight and level the vehicle. It may look good but you'll be putting a lot of stress on those air bags to level the vehicle. Now do the same thing with the system off.. it won't be level when you start but as you adjust your hitch it will become level. You're then putting the stress of the additional weight on the hitch (which is what it was designed for). Now, re-enable the system and all its adjusting for is the passenger weight shift.
If I was to start my Escalade when the trailer was connected with the remote start, the compressor would only run for a second or two to level it.. That's what you want.
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