To shift a GMC Terrain into Drive, you typically bring the vehicle to a complete stop, press the brake, and move the gear selector from Park to Drive (D). The exact method depends on the gear selector style in your model—either an electronic center-console shifter or a push-button/rotary shifter—but the basic safety steps are the same.
Understanding your Terrain’s gear selector
GMC Terrains use two common styles for selecting gears. Both require you to brake and confirm your selection on the instrument cluster, but the physical action differs. Below are the two most common setups and how to operate them.
Electronic center-console shifter
Model years that use the traditional electronic lever on the center console follow these steps to shift into Drive:
- With your foot firmly on the brake, start the engine or turn the ignition to the ready position if required.
- Confirm the transmission is currently in Park (P).
- Press the release button on the shifter, then move the lever forward to the Drive (D) position.
- Slowly release the brake and begin to accelerate as needed.
- When you’re finished, return the lever to Park (P) before exiting the vehicle.
In practice, dashboard or instrument-cluster indicators will show the current gear. If the vehicle won’t shift, ensure the brake is fully depressed and the ignition is in the proper position for operation.
Push-button or rotary gear selector
Some Terrains use a shift-by-wire system with a push-button or rotary selector. To shift into Drive on these models, follow these steps:
- With the brake pressed, ensure the vehicle is stationary and the engine is ready.
- Use the selector to choose Drive (D): press the D button or rotate/press the knob to the D position, depending on your model. The instrument cluster should confirm the selection.
- Release the brake slowly and begin to move when it’s safe.
If your setup includes a separate Park button, use it only when the vehicle is fully parked and stationary.
Safety tips and common issues
Always shift into Drive only after a complete stop and with your seat belt fastened. If the transmission won’t shift to D, check that you’re pressing the brake firmly, the engine/ready state is engaged, and there are no warning indicators requiring service. If problems persist, consult the owner’s manual or contact a dealer for a diagnostic check, as issues with the shift interlock or transmission sensors can affect operation.
Troubleshooting quick checks
If you’re encountering trouble shifting, try these quick checks in a safe area:
- Ensure the brake pedal is fully depressed and that the brake lights illuminate when you press it.
- Confirm the ignition/vehicle is in a ready state appropriate for gear shifting.
- Verify the transmission is in Park (P) before attempting to shift to Drive, then follow the steps for your selector type.
If issues persist, a dealer visit is advised. The shift interlock and electronic gear selector can be affected by battery condition or sensor faults, especially in adverse weather or after warning codes appear.
Summary
Shifting a GMC Terrain into Drive boils down to a safe stop, braking, and selecting Drive using your vehicle’s gear selector. Whether you have an electronic center-console shifter or a push-button/rotary style, the core sequence remains the same: apply the brake, release the interlock, select D, and begin to move when safe. Always refer to your specific year and trim in the owner’s manual for any model-specific quirks, and seek service if the transmission won’t shift properly.