Why Does My Onstar Keep Coming on

If you own a vehicle equipped with OnStar, you may have experienced instances where the system unexpectedly activates itself. This can be quite puzzling and even frustrating for some drivers.

In this blog post, we will explore the possible reasons behind why your OnStar keeps coming on, as well as provide some insights into how you can address this issue. So, let’s dive in and uncover the mystery behind these unexpected activations.

Common Reason Why Does Onstar Keep Coming on

  1. Automatic Crash Response and Sensor Triggers:

One of the primary features of OnStar is its automatic crash response system, designed to provide immediate assistance in the event of an accident. Your vehicle’s sensors can detect certain impacts or changes in motion that may trigger OnStar to activate. These triggers can include sudden deceleration, airbag deployment, or even hitting a pothole or speed bump with enough force. While these activations are intended to ensure your safety, they can sometimes occur even without any apparent cause.

  1. Subscription and Service Status:

Another factor to consider is the status of your OnStar subscription and the associated services. OnStar offers various plans with different features and durations. If your subscription is active, it’s possible that OnStar is periodically checking its connectivity and system status. This regular check-in may manifest as the system momentarily coming on. However, if you have canceled your subscription or it has expired, the system might still attempt to connect, leading to repeated activations.

  1. Software or System Glitches:

Like any complex technology, OnStar systems can experience software or system glitches from time to time. These glitches may cause the system to activate unexpectedly or display false alerts. Such issues can arise due to factors like outdated software, incompatible firmware, or temporary malfunctions. If you suspect a glitch is behind the frequent OnStar activations, reaching out to OnStar’s customer support or your vehicle’s dealership can help in troubleshooting and resolving the problem.

  1. External Interference:

External interference can also be a potential cause for your OnStar system activating spontaneously. Radio frequency interference from nearby sources, such as powerful radio towers or other electronic devices, might trigger your vehicle’s communication system. In such cases, the interference disrupts the signals, causing the system to activate intermittently. To rule out this possibility, consider if there are any new electronic devices or infrastructure in your vicinity that could be causing interference.

  1. Sensor and Wiring Issues:

In some instances, a malfunctioning sensor or wiring problem within the vehicle could lead to false OnStar activations. Damaged or faulty sensors may send incorrect signals to the OnStar system, causing it to activate when it shouldn’t. Similarly, wiring issues, such as loose connections or short circuits, can disrupt the proper functioning of the system. Consulting a qualified mechanic or contacting your vehicle’s manufacturer for inspection and repair can help identify and rectify such problems.

How to Deactivate OnStar as Fast As Possible

Where is the Onstar Module Located

Onstar is a telematics service offered by General Motors that provides remote vehicle diagnostics, hands-free calling, and turn-by-turn navigation. The Onstar module is located in the vehicle’s dash, usually near the radio. It is a small black box with an antenna attached.

Why Does My Onstar Keep Coming on

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How Do I Stop Connecting to Onstar?

If you are the owner of a GM car, chances are you’re familiar with OnStar. OnStar is a subscription-based service that offers features like hands-free calling, remote door unlock, turn-by-turn navigation, and more. While these features can be helpful, some people may want to cancel their OnStar subscription for various reasons.

Here’s how to do it:

First, you’ll need to call up OnStar customer service at 1-888-4ONSTAR (1-888-466-7827). Once you’re on the phone with a representative, let them know that you’d like to cancel your subscription.

They will then ask for your account information and billing details in order to process the cancellation. Keep in mind that if you have an active plan with OnStar at the time of cancellation, you may be charged a fee. However, this fee is typically only around $5-$10.

Additionally, if you have any outstanding balances on your account, these will need to be paid off before your subscription can be officially cancelled.

Once everything has been processed on their end, the representative will confirm that your OnStar subscription has been cancelled. And that’s it!

You are now free from your OnStar contract.

How Do I Turn off Onstar Notifications?

If you’re the owner of a GM vehicle, chances are you have OnStar–an in-vehicle safety and security system that offers a variety of features and services. While most people find OnStar useful, some may find the notifications it sends to be annoying. If you fall into the latter category, don’t worry–it’s easy to turn off OnStar notifications.

Here’s how:

First, open the OnStar app on your smartphone (you’ll need to be an active subscriber to do this). Then, tap on the three lines in the top left corner of the screen to open the menu.

Next, select “Notifications” from the menu. On the next screen, you’ll see a list of all the different types of notifications that OnStar can send. To disable a notification, simply toggle it off.

Once you’ve turned off all the notifications you don’t want to receive, tap “Done” in the top right corner of the screen. And that’s it! You should now stop receiving those pesky OnStar notifications.

Frequently Asked Question About Onstar Keep Coming on

Can Someone Track You Through Onstar?

OnStar is a subscription-based service that offers emergency and security assistance to its users. It uses GPS technology to track the location of its subscribers in case of an emergency. While OnStar cannot be used to track someone without their consent, it is possible for law enforcement to request user data from the company in certain cases.

Can Onstar Be Turned Off?

Yes, OnStar can be turned off. However, doing so will disable several of the system’s features, including the ability to remotely unlock your doors, start your engine, and track your vehicle’s location. Additionally, you will no longer have access to OnStar’s concierge services or emergency response assistance.


While it can be frustrating to experience unexpected OnStar activations, understanding the potential reasons behind them can alleviate some of the confusion. The triggers could be related to the system’s crash response features, subscription status, software glitches, external interference, or internal vehicle issues.

By investigating these possibilities and seeking professional assistance when needed, you can troubleshoot the problem and ensure that your OnStar system functions as intended. Remember, if you’re ever unsure about the cause or concerned about the repeated activations, contacting OnStar’s customer support or your vehicle’s manufacturer is always a good step toward resolving the issue.