VEHICLE DIAGNOSTICS

VEHICLE DIAGNOSTICS

Stay Connected With Your GM Vehicle’s Health With OnStar Advanced Diagnostics

STAY CONNECTED TO YOUR DRIVE

Vehicle Diagnostics† is a tool that monitors your vehicle’s key operating systems and provides you with regular updates about your vehicle’s health. Those vehicle health updates are sent to your dealer to alert them when your vehicle needs service. When that time comes, your dealer will contact you to schedule an appointment with Certified Service. With Vehicle Diagnostics, you’re always connected - so you can drive more and worry less.
On The Other End Of The OnStar Blue Button Is An Emergency-Certified Advisor To Help Connect You With Your Certified Service Dealer

ON-DEMAND DIAGNOSTICS†

If you’re on the road and your “check engine” light or a vehicle alert pops up, OnStar may be able to help. Just push your blue OnStar button and ask the Advisor to run an On-Demand Diagnostics check. The Advisor can explain what steps you might need to take to resolve any potential issues, including offering Roadside Assistance or locating the nearest Certified Service dealer. On-Demand Diagnostics is included in the Remote Access, Connected Vehicle, Essentials, and Premium plans.

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KEY BENEFITS OF VEHICLE DIAGNOSTICS

For enrolled Members, Vehicle Diagnostics is a powerfully simple way to help keep you aware of what’s going on under the hood. It offers peace of mind by checking in with you every month or in real time to help make sure your vehicle is ready for the road. There are two major features:

1. DIAGNOSTIC ALERTS

  • Each month, you can receive an easy-to-read diagnostics report via email with the status of your engine, transmission, and other key operating systems. It also lets you know when you’re due for scheduled maintenance.
  • Simple color-coded icons make the report easy to review in seconds. A green icon next to a system means no issues were found. A yellow icon tells you action is suggested. And a red icon means you need to take action immediately
  • You can also receive Diagnostic Alerts about real-time vehicle issues by email or text
  • It’s a consistent reminder of what’s going on – specific to your vehicle – and what steps are involved in maintaining it

2. DEALER MAINTENANCE NOTIFICATION

Time for a tire rotation? A tune-up? A new air filter? You’ll always know because OnStar will notify your preferred dealer when it’s time, and they’ll contact you to schedule an appointment. Your vehicle is self-diagnosing so you can enjoy the experience of driving.

Control Your Vehicle Directly From Your Smartphone

Download the all-new myChevrolet, myBuick, myGMC, or myCadillac mobile app† and use your smartphone to manage your vehicle. Monitor your vehicle’s tire pressure,† oil life, and fuel level; lock or unlock doors;† remote-start the engine;† or search for destinations and send directions to your vehicle’s Navigation System† — all from your smartphone.
ENROLL OR VIEW DIAGNOSTICS REPORT
When you purchase a new vehicle, your first oil change could be covered.

YOUR FIRST OIL CHANGE IS COVERED†

Includes a 4-tire rotation, Multi-Point Vehicle Inspection, and free of additional costs for new owners and lessees.

LEARN MORE
Learn more about warning lights with Certified Service Advanced Diagnostics. Schedule your appointment today.

TROUBLE WITH YOUR VEHICLE?

Let us help you to identify potential issues before they become a major concern.
DISCOVER NOW
Learn more about your vehicle with GM Account. Check your OnStar Plan, Warranty information, download Owner's manuals and more

GM ACCOUNT

From checking your OnStar®† or Connected Services plan to downloading your Owner’s Manual, managing your vehicle online has never been easier.
LEARN MORE
Schedule your service appointment today at My Certified Service. Leave your scheduled maintenance to the Certified Experts.

SCHEDULE YOUR SERVICE

Scheduling service is quick and easy. Make your next appointment online by locating a Certified Service dealer near you.

SCHEDULE ONLINE
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  • Diagnostic capabilities vary by model and plan. Message and data rates may apply. Requires contact method on file and enrollment to receive alerts. Not all issues will deliver alerts. See onstar.com for details and limitations.

  • On-Demand Diagnostics capabilities vary by model and plan. See onstar.com for details and limitations.

  • Available on select Apple and Android devices. Service availability, features and functionality vary by vehicle, device and the plan you are enrolled in. Terms apply. Device data connection required. See onstar.com for details and limitations.

  • Vehicle must be equipped with Tire Pressure Monitoring System. Excludes spare tire.

  • Requires automatic door locks.

  • Requires factory-installed and enabled remote start.

  • Requires paid plan and properly equipped vehicle. Mobile app functionality is available on select devices and requires data connection. Map coverage available in the U.S., Puerto Rico and Canada. See onstar.com for details and limitations.

  • New owners and lessees for model year vehicles from 2020-2022. For Chevrolet, Buick and GMC owners and lessees, maintenance visit must occur at an eligible participating Buick, GMC or Chevrolet dealership within the first year of vehicle delivery. For Cadillac owners and lessees, service must be performed at a participating Cadillac dealership. Does not include air filters. See dealer for other restrictions and complete details.

  • 1. Requires paid plan, working electrical system, cell reception, GPS signal, armed GM factory-installed theft-deterrent system, contact method on file and enrollment to receive alerts. Additional messaging and data rates may apply. Services are intended to assist with vehicle recovery and do not prevent theft or protect against damage or loss. See onstar.com for details and limitations.
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