What does Chevy OnStar do?
Chevy OnStar is a built-in telematics and connected-services system that provides safety, security, navigation, and remote connectivity for Chevrolet vehicles, backed by 24/7 live advisors and automated crash notifications. It connects drivers with help when they need it and lets them manage the car from a phone or in-car controls.
Core safety and security features
OnStar’s safety and security tools are designed to speed help in emergencies, deter theft, and provide round‑the‑clock access to trained advisors. The following are the main components you typically get with OnStar.
- Automatic crash notification (ACN) with 24/7 emergency assistance
- Emergency Services (SOS) with a live OnStar Advisor who can request dispatch or connect to 911 where available
- Stolen Vehicle Assistance and vehicle location tracking to aid recovery
- Roadside Assistance for towing, flat tires, jump-starts, and other help
- Remote unlock, vehicle locate, and remote start (where available, model‑ and region‑dependent)
These features create a safety net that can activate even if you can’t reach your phone, helping authorities locate you and your vehicle quickly.
Connectivity and vehicle health
Beyond safety, OnStar provides in‑car connectivity, navigation support, and proactive vehicle health information through the car and the OnStar mobile app.
- In-car Wi‑Fi hotspot powered by 4G LTE (data plan required)
- Hands-free calling and, in some vehicles, turn‑by‑turn navigation and destination transfer via advisors
- Remote unlock, vehicle locate, and, where supported, remote start through the OnStar app or vehicle controls
- Vehicle diagnostics and maintenance alerts with proactive tips for service
- OnStar Guardian app features for smartphone safety, including location sharing and direct access to emergency support
These connectivity and health tools help drivers stay connected, monitor their vehicle’s health, and plan maintenance without visiting a dealership.
How to access OnStar
You can reach OnStar from inside the vehicle by pressing the blue OnStar button on the rearview mirror, using voice prompts, or starting with a setup in the OnStar or MyChevrolet mobile apps. Advisors can help enable services, pair devices, and adjust privacy and notification settings.
Access through mobile apps
The OnStar app and the MyChevrolet app let you remotely unlock doors, locate the vehicle, start the engine (where supported), and view diagnostic information on your phone. You can also add OnStar Guardian for extra safety outside the car.
Plans and eligibility
OnStar services are typically subscription-based, with most Chevrolet vehicles offering a trial period for safety and connectivity features. After the trial, customers can choose a plan that fits their needs, with availability varying by model and market.
Summary
Chevy OnStar combines emergency response, theft protection, remote access, in-car connectivity, and proactive vehicle health information into one integrated system. It enhances safety, security, convenience, and peace of mind for drivers, accessible through in-vehicle controls and mobile apps, subject to subscription terms.
