Your complete satisfaction is important to us. We have facilities, representatives, technicians, tools, and up-to-date information to promptly resolve your questions or concerns. Call the appropriate number below with questions.

Here are some additional resources to help you find what you’re looking for.

Here are some commonly asked questions about vehicle maintenance and parts. Find which question pertains to your issue and we can supply a quick answer.

Use this tool to learn more about your vehicle, track service history, watch how-to videos, manage your OnStar membership, and more.

Your vehicle Owner's Manual is a great source for required service and vehicle maintenance information, including your maintenance schedule.

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Pontiac   Saturn   HUMMER    Oldsmobile

Find out more about the different levels of warranty coverage offered across a variety of GM/ACDelco parts.

Visit our rebate center to submit a claim. Track the status of a mail-in rebate or a rebate submitted online for one of our vehicle maintenance offers.