What Does This Indicator Mean?
The DAF Green Cruise Control Active Indicator Light illuminates on your dashboard to signify that the vehicle’s electronic cruise control system is currently engaged and actively maintaining the driver-set target speed. In modern commercial DAF trucks, this subsystem interacts directly with the Engine Control Module (ECM), the Electronic Braking System (EBS), and the transmission control unit via the Controller Area Network (CAN bus). When you press the steering-wheel-mounted cruise control activation and set buttons, the vehicle’s central computer processes inputs from wheel speed sensors, the throttle position sensor, and radar-based adaptive modules. The green color-coding universally indicates an informational status rather than a fault, assuring the operator that the system is operating normally and managing fuel delivery to sustain the desired velocity without requiring manual accelerator pedal input.
Can I Still Drive with This Light On?
Yes, you can and will continue driving normally with this indicator illuminated. Because this light carries a green severity rating, it denotes an active, healthy system function rather than a mechanical failure or diagnostic trouble code (DTC). There are no immediate risks to the engine, transmission, or safety systems caused by this light being on. In fact, it means the vehicle is maintaining a steady state of operation, which can optimize fuel economy during long-haul transit. However, drivers must always remain alert and keep their feet positioned to quickly override or brake if traffic conditions suddenly change.
Common Causes of the Warning
- Normal System Activation: The driver has deliberately pressed the set or resume switch on the steering column, commanding the ECM to lock in the current vehicle speed.
- Adaptive Cruise Control (ACC) Speed Regulation: The vehicle has automatically adjusted its target velocity based on slower traffic ahead using the front-mounted radar sensor, keeping the green indicator lit while actively modulating the throttle or retarder.
- Resume Function Utilization: The driver has pressed the resume button after a temporary brake pedal override, prompting the powertrain to smoothly accelerate back to the previously stored highway speed limit.
How to Diagnose and Reset It
Because the DAF Green Cruise Control Active Indicator Light is a status symbol rather than a malfunction warning, it does not require a diagnostic trouble code (DTC) clear via an OBD2 scanner, nor does it necessitate a manual check under the hood. To verify that the system is functioning correctly, perform a quick operational test: tap the brake pedal or press the cancel button on the steering wheel stalk. The green indicator should immediately extinguish, signaling that the system has disengaged and returned full speed control to the accelerator pedal. If the light fails to turn off when commanded, or if it flickers intermittently while the switch is untouched, you may be experiencing a mechanical switch failure in the steering wheel assembly or a faulty brake pedal position sensor that requires inspection by a certified DAF technician using DAVIE diagnostic software.