How to Fix a Failed Remote Start After Battery Change

How to Fix a Failed Remote Start After Battery Change?

Remote start is a convenient feature in modern cars that allows you to start the engine from a distance using a key fob or a smartphone app. It is especially useful during extreme weather conditions when you want to warm up or cool down the car before getting in. However, sometimes remote start may fail to work after a battery change. In this article, we will discuss the reasons for remote start failure and how to fix it.

Check the Battery

The first thing to check when remote start fails after a battery change is the battery status. A weak or dead battery can prevent the remote start system from functioning properly. To check the battery, use a voltmeter or take it to an auto parts store for a battery load test. It is essential to have a fully charged battery to power all the electronic components of the car, including the remote start system.

Reconnect the Battery

If the battery is okay, the next step is to check if it is properly connected. A loose or disconnected battery can cause remote start failure. To reconnect the battery, first, turn off the ignition and remove the key. Then, disconnect the negative terminal of the battery first and then the positive terminal. Clean the terminals with a wire brush or sandpaper to remove any corrosion or dirt. After reconnecting the battery, wait for at least 10 minutes before trying to start the car.

Reset the Remote Start System

Once the battery is connected, the next step is to reset the remote start system. The procedure for resetting the system may vary depending on the car model and the remote start system installed. Refer to the car manual or the remote start system user manual for the specific steps. In general, the process involves turning the ignition key on and off several times, pressing the remote start button on the key fob or app, or a combination of both. After resetting the system, test the remote start to see if it works.

Seek Professional Help

If the remote start still does not work after checking the battery, reconnecting it, and resetting the system, it is time to seek professional help. A qualified technician or service center can diagnose the issue and fix it. It is essential to choose a trusted professional to avoid further damage or complications.


Can I install a remote start system myself?

It is possible to install a remote start system yourself, but it is recommended to have it installed by a professional to ensure proper installation and avoid voiding the warranty.

Can a low battery affect other electronic systems in the car?

Yes, a low battery can affect other electronic systems in the car, such as the radio, the lights, and the power windows.

Is it safe to use remote start in a closed garage?

No, it is not safe to use remote start in a closed garage because it can cause carbon monoxide poisoning. Always use remote start Apologies for the error. Here is the continuation of the article:


Remote start is a convenient feature that can save you time and make your driving experience more comfortable. However, it can be frustrating when it fails to work after a battery change. By following the steps outlined above, you can troubleshoot and fix most issues related to remote start failure. Remember to always check the battery status, reconnect the battery properly, reset the remote start system, and seek professional help if necessary. Proper maintenance and care of your remote start system can also prevent future issues and ensure its longevity.

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