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.

Watch the video to see what OnStar means to three generations of one family.

Click here to view the embedded video.

¹ Service varies by model and conditions. .
² Visit onstar.com for coverage map, details and system limitations.
³ Requires ABS and Directions & Connections plan. Visit onstar.com for coverage map. Services vary by model.
⁴ Not available in all states.

Mick Johnson commutes fewer than 20 miles a day to and from work. He’s been taking advantage of the OnStar Low Mileage Discount since 2004. “It’s a great benefit to get a lower premium,” Mick says.

The OnStar Low Mileage Discount is an auto insurance discount for subscribers residing in eligible states who drive within the mileage ranges specified by their auto insurer. Mick has auto insurance through GMAC Insurance, one of several insurance companies that offer discounts to OnStar subscribers.

How the Low Mileage Discount works

Once you’ve enrolled in the program, your insurer will notify OnStar. With your permission, the odometer reading from your monthly OnStar Vehicle Diagnostics email is forwarded to your participating insurance provider. Based on those readings, the company will modify your premiums using discount tiers corresponding to miles driven. This can earn you a larger discount because your report verifies actual mileage. So the fewer miles you drive, the higher your discount. For example, if you have auto insurance through GMAC Insurance and you only drive up to 2,500 miles a year, you are eligible for a 54 percent Low Mileage Discount. Conversely, if you drive between 12,501 and 15,000 miles per year, your Low Mileage Discount through GMAC Insurance would be 13 percent.

“Anyone who drives less than 15,000 miles a year should get a quote from GMAC Insurance,” says Mick.

Not a low mileage driver? No problem. The Active OnStar Subscriber Discount can also save you money on your insurance and requires only an active OnStar subscription.

To see if your insurance provider offers the OnStar Low Mileage or Active OnStar Subscriber Discount, check out this list of participating insurance providers.

Check out the video below to see what OnStar subscribers enjoy the most about their service.

Elijah and Nicole Scott have owned their 2008 Saturn VUE for just over two years, and they’ve already put 60,000 miles on it. To say they drive a lot would be an understatement. But Elijah, who also owns a couple of classic cars and loves working on them, takes pride in keeping all his cars in tip-top shape. In fact, he just got his oil changed on the VUE — for only the fifth time.

“My monthly OnStar Vehicle Diagnostics emails have saved me a lot of money over the last two years,” says Elijah. “I figure I’ve saved $450 on oil changes alone. Thanks to the GM Oil Life System, I’ve been averaging 12,000 miles between oil changes. If I had been getting my oil changed every 3,000 miles like I used to, I would have been getting my 20th oil change at 60,000 miles instead of my fifth.” Elijah’s 12,000 miles between oil changes and savings are not typical. Actual mileage will vary based on vehicle/engine combination, driving conditions and driver habits.

Elijah says he really relies on his monthly diagnostic email. “Because all your key systems are monitored regularly, it can help head off some expensive repairs down the road.

“Two weeks ago, my wife was driving the VUE when the tire pressure warning light came on. She pushed the OnStar button and the Advisor immediately checked the last diagnostics report and let Nicole know which tire was low and its pressure, and advised her to have the tire checked as soon as possible. When Nicole got home, I found a nail embedded in the tire. People don’t realize how important tire pressure is and how much damage can occur if the tire shreds. We might not have noticed the tire pressure was low until it was too late.”

When Elijah and Nicole were shopping for their VUE two years ago and the salesman was explaining how OnStar worked, Elijah admits he didn’t pay much attention. He says he figured it was something they’d probably never use. Now he says he’ll never have another car without it.

“We feel like we’re really getting what we’re paying for. It’s there if we need it, it has helped save us money and it lets us know that our car’s key systems are in good working order. And when you drive as much and as far as we do, that little extra peace of mind can be very important.”

Sign up for your monthly emails

OnStar Vehicle Diagnostics¹ lessens the worry of maintaining your vehicle by performing regular checks for you and sending you a monthly diagnostics email. Your vehicle can let you know what it needs. Sign up for OnStar Vehicle Diagnostics to get your monthly email diagnostic report at no extra cost. To sign up, just go online or press your blue button.

¹ Capabilities vary by model and model year. Visit onstar.com for details and system limitations.

We recently sent the 100-millionth OnStar Vehicle Diagnostics¹ email. It marked a milestone for the service, which gives subscribers peace of mind and can also help save them money on vehicle maintenance and fuel costs.

Like a Physical Exam for Your Vehicle

Each month we send an email to millions of OnStar subscribers. These monthly emails include status alerts for key operating systems such as engine, transmission, antilock brakes, StabiliTrak (that helps you avoid a crash), and potentially injury-reducing air bags. It helps provide peace of mind, knowing that your vehicle’s key systems are ready for the road.

Tire Pressure Alerts Could Help Save Money and the Environment

Additionally, the Vehicle Diagnostics email lets subscribers know if their tire pressure is low or needs attention. By keeping tires properly inflated, OnStar subscribers can get better fuel economy and save more than $70 on fuel per year per subscriber.² Among all subscribers, that comes out to more than $350 million per year on fuel.

Keeping tires properly inflated can also help the environment. By following tire pressure alerts in the monthly email, subscribers could save more than 12.5 million gallons of fuel per month. Among all subscribers, that comes out to a collective savings of more than:

• • 150 million gallons of gas per year
• • 7.5 million barrels of crude oil per year

Save Oil, Time and Money with OnStar Vehicle Diagnostics

The Vehicle Diagnostics emails let subscribers know exactly when it’s time for an oil change. The GM Oil Life System monitors a vehicle’s oil and tells when to change it based on how each subscriber drives.

By following oil life alerts in the monthly email, OnStar subscribers need fewer oil changes every year and could save more than $30 per subscriber.³ Collectively among all subscribers, that’s more than $150 million per year on oil changes. And our subscribers could collectively conserve more than 48 million quarts of oil per year by following the oil life alerts in their emails.

No Extra Charge

OnStar Vehicle Diagnostics emails are part of your OnStar subscription — there is no extra charge. Sign up for OnStar Vehicle Diagnostics today and let it start making a difference for you. To sign up, just push the blue button and talk to an Advisor, or visit onstar.com.

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¹ Capabilities vary by model and model year. Visit onstar.com for details and
system limitations.
² Assumes price of $2.50/gallon (reg. unleaded gas).
³ Vehicle must be equipped with the GM Oil Life System. Assumes price of $3.00/quart (5 qts. per change).