Quick answer

Terrain Mode adds accelerator-release braking for low-speed off-road work; DRIVE is the milder calibration, while LOW applies stronger deceleration below 20 mph.

Before you start

Check that your vehicle has it.

Availability

Verified for the 2024 U.S.-market GMC HUMMER EV Pickup and SUV 2X/3X with Driver Mode Control.

Retail trim / version
2024 HUMMER EV Pickup 2X and 3X, 2024 HUMMER EV SUV 2X and 3X
Compatibility check

Does the documented scope match your car?

This check combines the verified year, any source-supported powertrain scope, source-named trim/package and required equipment. It does not read a VIN or factory build record.

Can you see the required control, menu or equipment on your vehicle?
Published availability and qualifications

Verified for the 2024 U.S.-market GMC HUMMER EV Pickup and SUV 2X/3X with Driver Mode Control.

Visual orientation

Know what kind of control to look for.

This original category diagram is an orientation aid, not a picture of your exact trim. Use the written labels and your vehicle manual to identify the real control.

Drive modes orientation diagram for GMC Hummer EV
Drive modes orientationOriginal visual guide · controls vary by trim · not to scale
How to use it

Step by step.

  1. 01

    On a suitable low-speed off-road surface, turn the center-console MODE dial to the icon showing a vehicle over large bumps.

  2. 02

    Confirm Terrain Mode in the Driver Information Center and begin in the default DRIVE setting.

  3. 03

    Release the accelerator gradually to learn the milder automatic-braking response before approaching an obstacle.

  4. 04

    For more aggressive deceleration on extreme terrain below 20 mph, move the shifter to L to select the LOW calibration.

  5. 05

    Use the brake pedal whenever the vehicle does not come to or hold a complete stop.

!

Important limits

  • Terrain Mode limits vehicle speed to 50 mph and is intended for low-speed off-road operation.
  • Automatic braking may not bring the vehicle to a complete stop on a slope; the driver must use the brake pedal as needed.
  • On a slippery downhill surface the vehicle may use antilock braking instead of the normal automatic-braking calibration.
If it does not work

Quick checks.

  • ✓If braking is less aggressive than expected, confirm the shifter is in L rather than D and that speed is below 20 mph.
  • ✓If the Driver Information Center shows a 50-mph warning, reduce speed and leave Terrain Mode before normal-road driving.
  • ✓If the vehicle rolls on a grade, press and hold the brake pedal; Terrain Mode is not a parking brake.
Owner feedback

What happened on your vehicle?

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Primary evidence

GMC Support — Terrain Mode DRIVE and LOW

We use the written official source to determine the steps and applicability shown above.

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Editorial record

Reviewed with a visible trail.

Scope and steps were checked by Car Cheat Codes Editorial Review. A guide is narrowed or corrected when the source does not support a broader claim.

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  • Initial verified publication.