How to fix :key system error nissan altima 2020 ?

Instructions for Fixing Errors Key System Error Nissan Altima 2020


The Nissan Altima 2020 is a popular car model that comes with advanced features, including a key system that allows you to start the car without inserting a key. However, like any other car, the Nissan Altima 2020 is prone to errors, and one of the most common errors is the key system error. This error can be frustrating, especially if you are in a hurry and need to get somewhere. In this article, we will provide you with instructions on how to fix the key system error in your Nissan Altima 2020.

What is the Key System Error?

The key system error is a common error that occurs in the Nissan Altima 2020. This error is usually caused by a malfunction in the key fob or the car’s keyless entry system. When the key system error occurs, you will not be able to start your car using the keyless entry system. Instead, you will have to use the physical key to start the car.

Step-by-Step Instructions for Fixing the Key System Error

Here are the step-by-step instructions for fixing the key system error in your Nissan Altima 2020:

Step 1: Check the Battery of the Key Fob

The first thing you should do when you encounter the key system error is to check the battery of the key fob. A weak battery can cause the key system error. To check the battery, follow these steps:

  • Locate the small button on the back of the key fob.
  • Press the button to release the key from the fob.
  • Replace the battery with a new one.
  • Reinsert the key into the fob.
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Step 2: Reset the Keyless Entry System

If the battery of the key fob is not the problem, the next step is to reset the keyless entry system. To reset the keyless entry system, follow these steps:

  • Get into the car and close all the doors.
  • Insert the key into the ignition and turn it to the “on” position.
  • Press and hold the “lock” button on the key fob for 10 seconds.
  • Release the “lock” button and turn the key to the “off” position.
  • Remove the key from the ignition.
  • Wait for a few seconds and then try to start the car using the keyless entry system.

Step 3: Replace the Key Fob

If the above steps do not work, the key fob may be damaged and needs to be replaced. To replace the key fob, follow these steps:

  • Contact your local Nissan dealer and order a new key fob.
  • Once you receive the new key fob, follow the instructions provided by the dealer to program the new key fob to your car.
  • Test the new key fob to ensure that it is working properly.


The key system error can be frustrating, but it is a common problem that can be easily fixed. By following the step-by-step instructions provided in this article, you can fix the key system error in your Nissan Altima 2020 and get back on the road in no time. If the problem persists, it is recommended that you contact your local Nissan dealer for further assistance.

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