Frequently Asked Questions: Maintenance & Repair

  • Q: How do I schedule a service appointment with a dealer? 
  • A: There are several easy and convenient ways to schedule a service appointment with a GM dealership.  GM Dealerships will accept an appointment over the telephone, through their dealership website, or their dealership mobile site.  Additionally, GM offers customers the ability to find a GM dealership and schedule an appointment through any of the brand sites Chevrolet, Buick, GMC or Cadillac or through the Certified Service site.
  • Q: What makes Certified Service technicians different?
  • A: From changing oil to replacing engines to onboard vehicle diagnostics, these automotive experts, nationwide, are trained by GM to care for your vehicle’s specific needs, undergoing more than one million hours of instruction annually. They use the most advanced diagnostic equipment available. Genuine GM Parts are tested for performance and reliability – so no matter what kind of GM vehicle you own, trust it to the Certified Service technicians at your GM dealer.
  • Q: How do I obtain an Owner's Manual?
  • A: You can visit the GM Owner Center to view or download an electronic copy for many vehicles from 1993 to present. Once there, select your year, make and model and then click “View Your Owner’s Manual”. If you want to receive an official paper copy, you may contact Helm, Inc. Manuals are available for most GM vehicles for a fee. You can reach Helm Publications Ordering at 1-800-551-4123.
  • Q: What is the Oil Life Monitoring System?
  • A: The GM Oil Life System is a computer-based software algorithm that determines when to change oil based on engine operating conditions. The computer continuously monitors engine-operating conditions to determine when to change oil.
  • Q: What type of oil should I use in my GM vehicle?
  • A: You can find this answer by looking in your Owner’s Manual under “Oil, Engine.” For most vehicles from 1993 to present, you can view or download your manual online at the GM Owner Center. Once there, select your year, make and model and then click “View Your Owner’s Manual”.