Mercedes-Benz GLC : Driving and driving safety systems / Speed control cruise control

Function of cruise control

Cruise control regulates the speed to the value selected by the driver.

If you accelerate to overtake, for example, the stored speed is not deleted. If you remove your foot from the accelerator pedal after overtaking, cruise control will resume speed regulation back to the stored speed.

You can store any speed above 15 mph (20 km/h) up to the maximum design speed.

Observe the notes on driving systems and your responsibility; you may otherwise fail to recognize dangers.

Mercedes‑AMG vehicles: Cruise control is available up to a maximum speed of 155 mph (250 km/h).

Displays on the multifunction display

(gray): cruise control is selected but not yet activated.

(green): cruise control is active.

A stored speed appears along with the display.

The segments between the stored speed and the end of the segment display light up in the speedometer.

System limits

Cruise control may be unable to maintain the stored speed on uphill gradients. The stored speed is resumed when the gradient evens out.

Change into a lower gear in good time on long and steep downhill gradients. Take particular note of this when driving a laden vehicle. By doing so, you will make use of the engine's braking effect. This relieves the load on the brake system and prevents the brakes from overheating and wearing too quickly.

Do not use cruise control in the following situations:

• In traffic situations which require frequent changes of speed, e.g. in heavy traffic, on winding roads.
• On slippery roads. Accelerating can cause the drive wheels to lose traction and the vehicle could then skid.
• If you are driving when visibility is poor.

Operating cruise control

WARNING Risk of accident due to stored speed

If you call up the stored speed and this is lower than your current speed, the vehicle decelerates.

Take into account the traffic situation before calling up the stored speed.

Requirements:

• ESP® must be activated, but not intervening.
• The vehicle speed is at least 15 mph (20 km/h).
• The transmission is in position .

Operating cruise control

Press the rocker switches on the steering wheel control panel up or down to the desired position.

Activating cruise control

Select with the right rocker switch.

Activating cruise control

Press rocker switch up or down .

The current speed is stored and maintained by the vehicle.

or

Select with the left rocker switch. The last stored speed is called up and maintained by the vehicle.

If the last stored speed has previously been deleted, the current vehicle speed is stored.

When you switch off the vehicle, the last speed stored is deleted.

Increasing or decreasing the stored speed

1 mph (1 km/h): press rocker switch up or down to the pressure point.

or

5 mph (10 km/h): press rocker switch up or down beyond the pressure point.

or

Accelerate the vehicle to the desired speed and press rocker switch up .

Adopting a detected speed

Activate cruise control.

If a traffic sign has been detected and is displayed in the instrument cluster: select with the left rocker switch.

The maximum permissible speed shown by the traffic sign is stored and the vehicle maintains or does not exceed this speed.

Deactivating cruise control

Select with the left rocker switch.

Switching off cruise control

Select with the right rocker switch.

If you brake, deactivate ESP® or if ESP® intervenes, cruise control is deactivated.