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The Hummer EV will have real towing capabilities and here you can find out all about it.

"While we still don't know just how much the electric off-roader will be able to tow or haul in the bed, the GM Fleet Order Guide reveals a list of work-specific options. Along with the Hummer EV's ProGrade Trailering System that comes standard, there are separate lines for an integrated trailer brake controller, hitch guidance with hitch view, trailering assist guidelines, smart trailer integration indicator, and trailer side blind zone alert.

Sure, that sounds like car dealer mumbo jumbo, but it tells us that the Hummer EV will at least pack the standard truck tech we've come to expect from other GM pickups.

When you're reversing to latch onto a trailer, the 13.4-inch infotainment display will help guide you. When you're driving through heavy traffic with a load on, the Hummer EV will tell you if a Corolla is beside your trailer in a blind spot. Oh, and better yet, it can control your smart travel trailer and power it on the go in case you want to turn on the air conditioning before arriving at a summer campsite. These are all features we've seen on the GMC Sierra and Chevy Silverado, but it's good to know the Hummer EV will have them too, especially considering its six-figure MSRP.
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Of course, these gadgets won't mean much if towing cuts the truck's driving range by more than half. We're yet to really see how EVs do with a significant amount of weight behind them, and although towing definitely affects fuel mileage for gas- and diesel-powered vehicles, they can refuel in a hurry. The Hummer EV already has 9,000 pounds or so to lug around; additionally, the country doesn't have the infrastructure to provide DC fast chargers along multi-state routes.

To compete with its performance truck rivals, the Ford Raptor and Ram TRX, the Hummer EV will need to have a max tow capacity of at least 8,000 pounds. Keep in mind that it'll have something the others, don't though: GM's Super Cruise driving system. Don't be surprised if that includes the ability to pull a trailer hands-free."

 

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The Hummer EV will have real towing capabilities and here you can find out all about it.

"While we still don't know just how much the electric off-roader will be able to tow or haul in the bed, the GM Fleet Order Guide reveals a list of work-specific options. Along with the Hummer EV's ProGrade Trailering System that comes standard, there are separate lines for an integrated trailer brake controller, hitch guidance with hitch view, trailering assist guidelines, smart trailer integration indicator, and trailer side blind zone alert.

Sure, that sounds like car dealer mumbo jumbo, but it tells us that the Hummer EV will at least pack the standard truck tech we've come to expect from other GM pickups.

When you're reversing to latch onto a trailer, the 13.4-inch infotainment display will help guide you. When you're driving through heavy traffic with a load on, the Hummer EV will tell you if a Corolla is beside your trailer in a blind spot. Oh, and better yet, it can control your smart travel trailer and power it on the go in case you want to turn on the air conditioning before arriving at a summer campsite. These are all features we've seen on the GMC Sierra and Chevy Silverado, but it's good to know the Hummer EV will have them too, especially considering its six-figure MSRP.
View attachment 1032
Of course, these gadgets won't mean much if towing cuts the truck's driving range by more than half. We're yet to really see how EVs do with a significant amount of weight behind them, and although towing definitely affects fuel mileage for gas- and diesel-powered vehicles, they can refuel in a hurry. The Hummer EV already has 9,000 pounds or so to lug around; additionally, the country doesn't have the infrastructure to provide DC fast chargers along multi-state routes.

To compete with its performance truck rivals, the Ford Raptor and Ram TRX, the Hummer EV will need to have a max tow capacity of at least 8,000 pounds. Keep in mind that it'll have something the others, don't though: GM's Super Cruise driving system. Don't be surprised if that includes the ability to pull a trailer hands-free."

I think Hummer EV is going to have 10K lb towing , anything less than 14K lbs is not "serious towing" in my book, I tow 14K lbs all the time.
 

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One thing I haven’t seen mentioned is the possible use if the rear wheel steering to help with towing? I don’t know about these types of systems but I assume some movement of the rear wheels could help with trailer sway by helping to counter steer? Also RWS would help when maneuvering to line the hitch up with the trailer. We know the Sierra doesn’t have RWS so maybe the Hummer towing software won’t take advantage of it quite yet - in other words get it right first with the standard front wheel steering only and then tweak it later. I am sure it will work great either way.
 

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One thing I haven’t seen mentioned is the possible use if the rear wheel steering to help with towing? I don’t know about these types of systems but I assume some movement of the rear wheels could help with trailer sway by helping to counter steer? Also RWS would help when maneuvering to line the hitch up with the trailer. We know the Sierra doesn’t have RWS so maybe the Hummer towing software won’t take advantage of it quite yet - in other words get it right first with the standard front wheel steering only and then tweak it later. I am sure it will work great either way.
I think when you put it in tow / haul mode 4WS is locked out. Steering inputs are NOT the way to stop trailer sway... Using light applications of the trailer brakes and slow down gently is the best way. If your trailer sways, you either have the balance wrong, or are going too fast for that trailer, but steering inputs or tow vehicle brakes should NOT be used to counter trailer sway as these can easily amplify the problem. If the trailer sway happens on a down grade, sometimes adding small power, and using the trailer brakes together can calm things down.

4WS while backing up to a hitch is interesting, I could see it helping and hurting.
 
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