Tag: yellow

Highway Assist

This is a Highway Assist System (HAS) Indicator symbol. If the symbol is seen, it indicates an HAS malfunction or in the manufacturer’s Traffic Jam Assist (TJA) system .  The symbol appears in yellow/amber as a steering wheel with lines radiating away below  it or sitting atop lane lines. It adds an exclamation point as well, which always points to a problem.

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These are evolving systems and are generally only available when driving on highways. This system operates up to speeds of 90 mph (145 km/h) when horizontal signs (lane lines) are detected. It uses information from the front camera and radar to help keep the vehicle in the center of the lane and at a constant speed. The HAS system combines Adaptive Cruise Control (ACC) functions with lane centering logic to control the the vehicle. It requires the driver’s hands to remain on the steering wheel.

Once HAS is activated, an information display screen will appear on the instrument cluster display. It will add various visual elements such as speed, distance indicators for nearby vehicles, and warmings to keep hands on the wheel.

Driver Assist

This is a set of Driver Assist System Indicator symbols from a different manufacturer. They range from green to red and include one indicating a fault in the system in yellow/amber/orange. It has the exclamation point alongside the steering wheel, similar to the symbol above. When on, the same symbol in white will appear in the information screen.

Seen in green, the system is on and the vehicle sees the driver is attentive. In yellow/amber/orange without the exclamation point, driver inattentiveness has been detected, In red, driver inattentiveness has been detected continually and the system will shut down in short order.

The system operates under similar parameters as the HAS system described above.

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Remember that only proper service and repair procedures will ensure the safe and reliable operation of your car. In addition, proper safety procedures and precautions, such as the  use of safety goggles, the right tools and the equipment should be followed at all times to eliminate the possibility of personal injury or improper service which could damage the vehicle or compromise its safety.

These posts are for information sharing purposes only, and should not be used in lieu of an OEM service manual or factory authorized service procedure. We are not in the auto repair business nor do we publish automotive service manuals. Nothing we include on these pages and posts has been reviewed, approved or authorized by any vehicle manufacturer.

Technology is always changing and what is current and accurate today may be literally out-of-date and inaccurate tomorrow. And when it comes to the current state of flux in the auto industry, nothing is more true.

M Favreau

The author has 25 years of automotive experience and has assembled the most extensive collection of symbols and warning lights anywhere (over 1,000!) and can help you open and start any keyless start car with a dead key fob battery. BA, St. Joseph’s College, ME: MS, Rensselaer Polytechnic Institute, NY