Nissan Unavailable Front Radar Obstruction – Meaning And How to Fix

If you’re driving a Nissan vehicle equipped with adaptive cruise control, you may have experienced an error message stating “unavailable front radar” or “radar obstruction ahead.” 

This condition can be annoying and dangerous, as it disables the adaptive cruise control function. 

This article will explain what this error message means and how you can fix it.

What Does A Radar Sensor Do?

A radar sensor is an electronic sensor that uses radio waves to detect objects’ presence, location, and velocity. Radar sensors are used in various applications, including automotive safety, air traffic control, weather forecasting, and military defense.

How Does It Work?

Radar sensors work by sending out electromagnetic waves. These waves bounce off other vehicles, pedestrians, animals, or anything else in the car’s path. The sensors measure the time the radio waves return to the car. 

The time it takes for the waves to come back determines how far away the object is. The object’s speed can also be determined by how long the waves bounce back.

There are two types of radar sensors: short-range sensors (front sensors) and long-range sensors (rear sensors). 

The sensor in front of the car is used to detect objects in front of the car. The sensor in the rear is used to detect objects behind the car. These sensors are used to minimize accidents and prevent collisions.

Is It Safe To Drive With An “Unavailable Front Radar Obstruction” Message?

Driving with the “Unavailable Front Radar Obstruction” message is unsafe. This is especially true if you’re in an area with crowded roads or obstacles.

You must see what is in front of you to avoid hitting other objects. When you’re driving, it is not safe to be blindfolded. It is even more dangerous to be driving in heavy traffic or an area with heavy pedestrian traffic.

Even if the front radar is obstructed, you can still see objects in your blind spot. This means that you should be able to slow down, change lanes, and avoid hitting objects in your way. 

But you should still have your car inspected for any damage or foreign objects causing the obstruction. When you see this message, it is best to get your car inspected as soon as possible.

What Causes Nissan Unavailable Front Radar Obstruction

The Nissan Unavailable Front Radar Obstruction is a safety feature designed to prevent the vehicle from moving forward if there is an obstruction.

This can be anything from another vehicle to a pedestrian or a large road object. If the radar detects an obstruction, it automatically applies the brakes and stops the vehicle. 

Common causes of the Nissan Unavailable Front Radar Obstruction problem include:

Dirty Or Obstructed Radar Sensors

If the radar sensors are not clean, they may not properly detect objects in front of the vehicle. This can be caused by road debris, heavy rain, or even snow build-up on the sensors.

The best way to fix this problem is to clean the radar sensors. This can be done using a soft cloth or brush to remove debris blocking the sensors gently. 

If you live in an area where snow or heavy rain is common, you should invest in a sensor cover to help protect the sensors from the elements.

Foreign Objects In Front Of The Car

Another common cause of the Nissan Unavailable Front Radar Obstruction is a foreign object in front of the car. 

This could be anything from a piece of trash to a large animal. If there is a foreign object in front of the vehicle, it will block the radar waves from reaching the sensor.

The best way to fix this problem is to remove the foreign object in front of the car. If you cannot remove the object, you can try to drive around it. But be careful not to hit any other objects while you are driving.

Damaged Radar Sensors

In some cases, the radar sensors may be damaged and need to be replaced. This can be caused by impact damage from a collision or severe weather conditions.

Replacing damaged sensors should be done by a qualified mechanic or Nissan dealer.

Faulty Control Module

The radar control unit is the computer that processes the information from the radar sensors. If this unit is faulty, it may not be able to properly interpret the data from the sensors, which leads to the Unavailable Front Radar Obstruction sign being displayed.

If the radar control unit is faulty, it must be replaced. The radar control unit is a vital part of the vehicle’s safety system, so have it repaired as soon as possible if it is not working properly.

Loose Or Damaged Wiring

The radar system is powered by electricity, and the sensors are connected to the control unit by wires. If any of these wires are loose or damaged, it can cause the radar system to malfunction. 

You’ll need a certified mechanic to check the wiring and make necessary repairs.

Finally, it is also possible that the notification is coming on because there is something wrong with how the vehicle is being driven. If the warning comes on while the vehicle is in motion, it is likely that the driver is not paying attention to the road ahead and needs to be more cautious.

If the Nissan Unavailable Front Radar Obstruction does come on, it is important to take action immediately. This warning is intended to keep drivers and pedestrians safe, so it should not be ignored. 

Following the steps above, you can quickly fix the problem and get back on the road.

Conclusion

Nissan Unavailable Front Radar Obstruction indicates that your front radar has been obstructed. This can be dangerous to drive with, but it is easy to fix. 

When you notice this warning, have your car inspected immediately. You can also try to check the grill to ensure no obstructions are causing the interference. 

Make sure to repair any damage as soon as possible. Driving with an obstructed radar is unsafe, and you do not want to be driving blind.