Tow/Haul Mode Made Simple

If you own a truck and tow an RV, you might have a feature called Tow/Haul Mode. But what does it do, and when should you use it? Let’s break it down in straightforward terms.

Prefer to watch this article? Check out Jason’s more in-depth discussion, including how he’s used the feature to tow both a 43′ foot fifth wheel and a 25′ foot travel trailer and how/when to use it safely.

What Is Tow/Haul Mode?

Tow/Haul Mode is a feature that helps trucks handle heavy loads or trailers better. When you turn it on, it changes how your truck behaves to make towing and hauling easier and safer. Here’s how:

  1. Changes Gear Shifts:
    • Normally, your truck shifts gears at lower engine speeds (RPMs). Tow/Haul Mode keeps the truck in each gear a bit longer to give you more power and smoother acceleration.
  2. Helps with Braking on Hills:
    • When you’re going downhill, the truck uses the engine to slow down instead of just the brakes. This protects the brakes from getting too hot.
  3. Uses Gears Better:
    • In trucks with lots of gears, like 10-speed transmissions, it makes sure the truck uses the best gear for the job, so the engine doesn’t work too hard.
  4. Protects the Transmission:
    • Tow/Haul Mode locks parts of the transmission to reduce heat and wear.
  5. Turns Off Fuel-Saving Features:
    • If your truck has a feature that saves gas by turning off some cylinders, Tow/Haul Mode keeps all cylinders working to give you maximum power.

When Should You Use Tow/Haul Mode?

  • Towing or Hauling Heavy Loads:
    • Use it when pulling a trailer or carrying a lot of weight in your truck bed. For lighter loads, you might not need it, but it’s still helpful on steep hills.
  • Driving on Steep Hills:
    • It helps your truck climb hills more easily and slows it down safely when going downhill.
  • Long Road Trips:
    • If you’re towing or hauling over a long distance, Tow/Haul Mode reduces stress on your truck.
  • Driving on Mountain Roads Without a Load:
    • Even when you’re not towing, it can make downhill driving safer by improving braking control.

When Not to Use Tow/Haul Mode

Because it uses more fuel and keeps the engine running at higher speeds, if you aren’t in any of the above situations, it isn’t necessary to have it on. Also, keep it off if the roads are icy or slippery. The extra power might make it harder for your tires to grip the road. In regular rain, it’s usually fine to use.

Tips for Modern Trucks

Most newer trucks automatically adjust to towing and hauling, so you don’t always have to use it for lighter loads. But for heavy loads or steep hills, it’s a smart choice to turn it on. Always check your truck’s manual to see what the manufacturer recommends.

Simple Guidelines

  • Use it for loads over 1,000 pounds or when towing trailers.
  • Turn it on for hilly or mountain driving.
  • Avoid using it on icy roads unless absolutely needed.
  • Use it on steep descents, even without a trailer, to help with braking.

Final Thoughts

Tow/Haul Mode is a tool that can makes towing and hauling safer and easier. While it might use a bit more fuel, the benefits for your truck’s performance and safety are worth it. Whether you’re towing a big trailer or driving down a steep mountain, Tow/Haul Mode gives you better control and peace of mind.

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