Get OnStar One on us

Get OnStar One on us

Activate now

OnStar One unlocks the full OnStar experience: every safety feature, seamless connectivity, and in-vehicle entertainment, all in one plan.

Vehicle Eligibility

Your OnStar One plan duration varies by vehicle type and model year.

New Vehicles

2026 model year and newer*

12 months of OnStar One

New Vehicles

2025 model year and older

1 month of OnStar One

MY25 and newer Cadillac and select Buick, GMC and Chevrolet New Vehicles receive 3 years of OnStar One

Pre-owned vehicles

Any model year

1 month of OnStar One

Vehicle Eligibility

Your OnStar One plan duration varies by vehicle type and model year.

New Vehicles

2026 model year and newer*

12 months of OnStar One

New Vehicles

2025 model year and older

1 month of OnStar One

MY25 and newer Cadillac and select Buick, GMC and Chevrolet New Vehicles receive 3 years of OnStar One

Pre-owned vehicles

Any model year

1 month of OnStar One

What’s included in OnStar One?

Safety, entertainment, mobile app commands and more.

What’s included in OnStar One?

Safety, entertainment, mobile app commands and more.

Vehicle mobile app

Start your vehicle, get walking directions to its location, set your ideal cabin temperature and more right from your phone.*

In-vehicle Wi-Fi® Hotspot

Stay connected on the go with unlimited data, powering up to 18 devices to keep you productive and entertained on every drive.*

Automatic Crash Response*

If you’re in a crash, we’ll check to make sure you’re OK. We can also tell First Responders your location and what kind of help you need.

Roadside Assistance

Flat tire? Out of gas? Fender-bender? Need a tow? No problem. We can get you the help you need to get back up and running.*

Vehicle Status

Check your vehicle’s tire pressure, oil life, fuel level and more from your smartphone. Plus, easily schedule service with the tap of a button.

Stolen Vehicle Assistance

Car theft is on the rise — but our Advisors can help locate your vehicle and slow it down* when police have it in their sights.

Vehicle mobile app

Start your vehicle, get walking directions to its location, set your ideal cabin temperature and more right from your phone.*

In-vehicle Wi-Fi® Hotspot

Stay connected on the go with unlimited data, powering up to 18 devices to keep you productive and entertained on every drive.*

Automatic Crash Response*

If you’re in a crash, we’ll check to make sure you’re OK. We can also tell First Responders your location and what kind of help you need.

Roadside Assistance

Flat tire? Out of gas? Fender-bender? Need a tow? No problem. We can get you the help you need to get back up and running.*

Vehicle Status

Check your vehicle’s tire pressure, oil life, fuel level and more from your smartphone. Plus, easily schedule service with the tap of a button.

Stolen Vehicle Assistance

Car theft is on the rise — but our Advisors can help locate your vehicle and slow it down* when police have it in their sights.

Core benefits included on eligible vehicles

Have a 2025 model year or newer vehicle?

Included with your vehicle purchase comes OnStar Basics for up to 8 years, including core features designed to keep you connected on and off the road.

Getting started

Activating complimentary OnStar One is as easy as opening an app.

Step 1

Download and/or sign into your vehicle app. 

Step 2

Add or select your vehicle.

Step 3

Complete the activation from inside your vehicle.

Download the vehicle mobile app now 

myChevrolet

myBuick

myGMC

myCadillac 

Download the vehicle mobile app now

myChevrolet

myBuick

myGMC

myCadillac