OnStar Connections | Explore. Share. Engage.

By OnStar

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OnStar Vehicle Diagnostics¹ emails contain valuable information that can help save you time and money. Every month there’s new information about your vehicle. You can track things like your engine and braking systems, oil life and — if your vehicle is equipped with a Tire Pressure Monitoring System — the air pressure of each tire. Be sure to read your report and take advantage of money-saving tips like these:

Tire Pressure

Properly inflated tires can help improve your gas mileage by up to 3 percent.² Using data retrieved from your Tire Pressure Monitoring System, your OnStar Vehicle Diagnostics report lets you know if your tire pressure needs attention. Check out how Mary Hall’s diagnostic report alerted her to a tire with low pressure: “That OnStar email was a lifesaver.”

Oil Life

Monitor your vehicle’s oil life through your report. Thanks to advanced technology, if your vehicle is equipped with the GM Oil Life System, your “Change Oil” light comes on only when you actually need an oil change and not simply after 3,000 miles. By having your oil changed only when it’s needed, you’ll save time, money and oil — which is good for the environment. Check out how much Elijah Scott saved on oil changes by following his diagnostics reports: OnStar Vehicle Diagnostics helps save time and money.

Regular maintenance

If something needs your attention, it will be flagged on your monthly diagnostic report — letting you know if “action is suggested” or “immediate attention required.” Read how Butch Grafton was alerted to a potential problem: Finding a road hazard under the hood.

On-Demand Diagnostics, anytime

If the “Check Engine” light should come on or you have any kind of concern while you’re driving, you can push the blue OnStar button and ask the Advisor to run an On-Demand Diagnostics check immediately. Read what happened to Debbie Yaeger when she and her daughter were traveling far from home: On-Demand Diagnostics to the rescue.

If you haven’t signed up for your monthly diagnostic emails, do it now. There’s no additional cost — it’s part of your OnStar subscription. And it’s easy. Enroll online at onstar.com or push your blue button anytime and talk to an OnStar Advisor.

¹ Capabilities vary by model. Visit onstar.com for details and system limitations.
² Estimates based on U.S. EPA information (see www.fueleconomy.gov).

Missing information?

OnStar Vehicle Diagnostics emails track a vehicle’s key systems, but what other information do you wish your car could share with you? Let us know in the OnStar Connections forums.

Tags: maintenance schedule, oil change, On-Demand Diagnostics, OnStar Vehicle Diagnostics, tire pressure