Park Assist Blocked: Causes, (How to reset and fix)

Last updated on December 2nd, 2022 at 05:07 pm

Park Assist Blocked: Park Assist systems are one of the latest technologies to feature on advanced and luxury vehicles. They help you to park your car without any trouble but when a situation such as Park Assist Blocked happens, then it becomes a very difficult situation to deal with. In this blog, we’ll look at all the possible causes of Park Assist Blocked and how to get it fixed and prevent this problem in future.

What Is Park Assist and how does it work?

Park assist is a feature that helps a driver park their car. It can be either an automated system that takes over the steering and braking or a semi-automated system that gives the driver assistance with steering. Park assist is becoming increasingly common in newer cars, as it can help drivers avoid scrapes and dents when parking.

The way it works is by using sensors to measure the space around your car and then it will give you guidance on when to turn the wheel and when to stop.

Where are Parking Sensors Located?

Many people are unsure about where parking sensors are located on their vehicles. While the exact location may vary depending on the make and model of your car, parking sensors are typically located near the front and rear bumpers. If you’re still not sure where your parking sensors are, consult your car’s owner’s manual or ask a qualified mechanic.

What Does the “Park Assist Blocked” Warning Mean?

The “Park Assist Blocked” warning on your car’s dash means that the car’s sensors have been obstructed and the park assist feature is no longer operational. This warning is usually accompanied by a chime or other audible warning.

Causes why Parking Sensors Stop Working

Washing the vehicle

Washing your vehicle can cause parking sensors to stop working. This is because water can enter the sensor and disrupt the electrical signal that is sent to the control module. When this happens, the parking sensor will not be able to detect obstacles, which can be dangerous.

The Harsh Weather

Have you ever been driving in bad weather and had your parking sensors go out on you? It can be really frustrating, especially if you’re trying to park in a tight spot. But did you know that the weather can actually be the cause of your parking sensors stopping working?

It’s true! The cold weather can cause the moisture in the air to condense on the sensors, which then freezes and blocks the sensor. This can also happen in hot weather, but it’s more likely to occur in cold weather because the temperature difference is greater.

So if you find that your parking sensors are stopping working in bad weather, now you know why!

Driving Off-Road

Off-roading can be a lot of fun, but it’s important to remember that it can also cause problems for your car. One such problem is that parking sensors may stop working when you go off-roading. This is because the sensors are designed to work best on smooth, level surfaces. When you take your car off-road, the sensors can be jarred or covered in dirt, which can cause them to stop working properly.
If you’re going to go off-roading, be sure to keep an eye on your parking sensors and make sure they’re still working properly. If they’re not, you may have a difficult time parking your car when you get back on the road.

High Speed

This is a common problem with high-speed parking sensors. They tend to stop working when they’re used at high speeds. This is because the sensors are designed to work best at lower speeds. When they’re used at high speeds, the sensors can’t keep up with the speed of the vehicle and they stop working.

There are a few things you can do to prevent this from happening. First, make sure you’re using the correct settings for your sensor. Second, make sure you’re driving at a safe speed for the sensor. And third, make sure you keep an eye on the sensor while you’re driving so you can stop if it starts to malfunction.

The Damaged Bumper

The damaged bumper is the likely cause of parking sensors stopping working. This is because the sensors are located in the bumper, and when you hit something while parking, the impact can damage the bumper. This damage can cause the parking sensors to break or become dislodged. In some cases, the damage may be extensive enough to cause the entire parking sensor system to fail.

Poor Battery

Poor battery life is often the culprit when it comes to parking sensors ceasing to work properly. If you notice your parking sensors are no longer working as they should, check your battery life first before considering any other potential causes.

Step-by-Step Guide to reset Park Assist

Park Assist is a great tool that can help you park your car in tight spots. But if it starts to act up, you may need to reset it. Here’s a quick and easy guide on how to do so:

  1. Start by turning off your car’s ignition.
  2. Then, locate the Park Assist button. It should be on your dash near the steering wheel.
  3. Once you’ve found the button, press and hold it for about 5 seconds.
  4. After 5 seconds have passed, start your car’s ignition and Park Assist should be reset!


Step-by-Step Guide to Fix Park Assist Problem

Having trouble with your Park Assist feature? Follow this step-by-step guide to fix the problem:

First, check to see if there are any objects obstructing the sensors. If there are, remove them and try again.

If that doesn’t work, the next step is to check the electrical connection. Make sure the wires are all properly connected and that there is no corrosion.

If you’re still having trouble, the issue may be with the software. Try resetting the system and see if that does the trick.

Lastly, if none of these steps work, then you may need to take it in for service.

How to prevent Park Assist Blocked in future

There are a few things you can do to prevent Park Assist from being blocked in the future:

  • Make sure you clean your sensors regularly. This will help ensure that they are working properly and won’t get blocked by dirt or debris.
  • Avoid parking in areas with high traffic or where there is a lot of construction going on. The sensors can get easily confused in these kinds of environments and may not work as well.
  • If you have an aftermarket stereo system installed, make sure the sensors are not obstructed by the speakers or other components.
  • Be careful when backing into tight spaces. The sensors may not be able to detect objects behind the vehicle if they are too close.

By following these tips, you should be able to prevent Park Assist from being blocked in the future.

Fixing Parking Sensors Cost

The cost to fix parking sensors can vary depending on the severity of the problem. If the sensors are just dirty, you can clean them yourself with a cloth or brush. The average cost to fix parking sensors is from $500 to $1300 depending on the severity of the problem.


Q: How do you test park assist sensors?

A: To test park assist sensors, you can use a simple multimeter. First, disconnect the negative battery terminal to avoid any electrical shorts. Next, remove the sensor from the vehicle and open up the harness. Locate the two wires that power the sensor, and use the multimeter to test for continuity between them. If there is no continuity, then the sensor is most likely faulty and will need to be replaced.

Q: Is it easy to replace a parking sensor?

A: Although every car is different, replacing a parking sensor is generally not a difficult task. Most parking sensors are located near the bumper, making them easy to access. You may need to remove a few screws or panels to reach the sensors, but the process is typically straightforward.

Q: Can car sensors be repaired?

A: Yes, car sensors can be repaired. However, depending on the severity of the damage, it may be necessary to replace the entire sensor.

Q: Is parking sensor necessary?

A: Whether or not you need a parking sensor installed in your car depends on a few factors. If you’re someone who is constantly forgetting to check for cars in your blind spot, then a parking sensor could be a lifesaver. On the other hand, if you’re confident in your parallel parking abilities and never have any trouble remembering to check for cars, then you probably don’t need one. Ultimately, it’s up to you to decide whether or not a parking sensor is necessary.


We are sure you have received a ton of information about this topic, yet we hope that you found it very helpful. We would love to hear your feedback on this topic if you have anything else to add. And we hope that we have been able to help you solve your problem. If you have any issues or questions, please feel free to contact us anytime.