A new GMC comes with a recommended maintenance schedule that uses mileage and time (such as every year) to determine when to perform scheduled maintenance. The quick-glance schedule below includes key maintenance tasks at each interval, so you know exactly what is included in each service. Regular maintenance is important for keeping your vehicle healthy, improving efficiency, and ensuring safety. Some maintenance tasks apply to both traditional and electric vehicles, so always look for tips that are relevant to your specific model.
Quick-Glance Schedule (most late-model GMC trucks & SUVs)
| Every 6 months or 5k–7.5k miles | Every 12 months | Every 24 months | 30k–45k miles | 60k–90k miles (engine dependent) | As needed |
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Wisconsin note: frequent short trips + cold starts = severe service. Use the shorter end of the ranges above.
Using original equipment parts from Buick GMC and Chevrolet Buick ensures quality, manufacturer-backed warranty coverage, and peace of mind for your vehicle maintenance.
Model Pointers (plain talk)
| Sierra / Canyon (trucks) | Terrain / Acadia / Yukon (SUVs) | Diesel (Duramax where applicable) | AWD/4×4 |
| Tow or haul? Shorten intervals on transmission fluid and axle/transfer case checks. Add an alignment after heavy season use. | Family duty + winter runs = cabin filters clog fast; swap yearly. If you use roof boxes/trailers, watch brake and tire wear. | Fuel filter changes on schedule, DEF top-offs, and pay attention to regeneration messages. Use diesel-rated oil only.c | Change differential/transfer case fluids per manual if you tow, off-road, or face heavy snow duty. |
For more details about maintenance plans, visit our dealership website. To keep your vehicle in top shape, schedule service for your seasonal maintenance needs.
Seasonal Playbook (Stoughton, WI)
| Fall (pre-winter): | Winter: | Spring: | Summer: |
| Battery test (3–5 years old? budget replacement), beam wipers, winter washer fluid, coolant freeze point, tire tread ≥5/32" or switch to winter tires. | Check PSI monthly (drops ~1–2 PSI per 10°F), rinse underbody after salt, use remote start to warm—but drive off after 1–3 minutes for best engine health. | Alignment + suspension check (potholes, curbs), brake inspection, cabin filter swap, detail + protectant for salt removal. | A/C performance check, coolant level, trailer brakes/hitch setup before trips. |
What Counts as “Severe Service”? (you might be doing it)
- Mostly short trips (engine rarely warms fully)
- Extreme temps (hi, Wisconsin)
- Stop-and-go/idling, towing, or roof loads
- Dust, gravel, or frequent salt exposure
If this is your life, run tighter intervals and you’ll save money long-term.
Pre-Maintenance Checks
Before you even get to your scheduled maintenance, a few simple pre-maintenance checks can make a big difference in your GMC’s performance and reliability. Start by checking all fluid levels—engine oil, coolant, and transmission fluid should always be at the recommended marks to keep your vehicle running smoothly. Take a close look at your brake pads and tires for any signs of wear or tear; catching these early can help you avoid bigger issues down the road. Don’t forget to rotate tires regularly to ensure even tread wear and extend their life. These routine maintenance steps are essential for protecting your investment, ensuring your safety, and keeping your GMC ready for whatever the road throws your way. If you’re unsure what to look for, the GMC Certified Service team is always ready to help with expert advice and can help you schedule regular maintenance checks to keep your vehicle in top shape.
DIY vs. Pro
- DIY-friendly: wipers, washer fluid, cabin/engine air filters, basic bulbs.
- Shop-worthy: brakes, alignments, transmission/coolant/brake fluid service, differential/transfer case, EVAP or electrical diagnosis, ADAS camera/radar calibrations. Certain services, especially the initial maintenance visit for a new GMC vehicle, are best performed at a GMC dealership for certified expertise and to maintain warranty coverage.
Battery and Electrical Maintenance
Your GMC’s battery and electrical system are the heartbeat of your vehicle—without them, you’re not going anywhere. It’s smart to have your battery inspected every six months and plan for a replacement every four to five years, or as recommended for your model. Keep an eye out for corrosion on the terminals and cables, and make sure the battery’s water level is where it should be. Beyond the battery, regular checks of the starter, alternator, and fuses are key to preventing unexpected electrical issues. A multi point vehicle inspection by expert technicians can catch small problems before they become big headaches, and a simple filter change can help keep your electrical system running efficiently. Prioritizing battery and electrical maintenance as part of your regular maintenance routine ensures your GMC stays reliable and ready for every drive.
Service Visit Checklist
- Oil & filter (correct spec/grade) — have oil changed every 7,500 miles
- Rotate tires + torque lugs + set PSI
- Inspect brakes, belts/hoses, leaks
- Top fluids; test battery & charging
- Scan for codes; road test; update sticker
- Documented multipoint with photos
Don’t forget to schedule service for your next regular maintenance.
Maintenance Records and History
Keeping a detailed record of your GMC’s maintenance history is one of the smartest moves you can make as an owner. Every oil change, tire rotation, brake inspection, and routine maintenance visit should be logged—this information is invaluable for scheduling future service and catching potential issues early. Tools like the myGMC mobile app make it easy to track what’s been performed and when, so you never miss a critical check or service. Accurate maintenance records not only help extend the life of your vehicle and boost its performance, but they also enhance your safety and can even increase resale value down the line. By staying on top of your maintenance schedule and keeping all your service information organized, you’ll ensure your GMC is always ready for the road ahead.
Smart Ownership Tips
- Track everything in your GMC app or glovebox log, including when key components are replaced.
- Use OEM-spec fluids (especially transmission, brake, and coolant).
- Two key fobs + complete records help resale value.
- For towed trailers, verify brake controller, lights, and tongue weight (10–13% of total for many travel trailers).
FAQs
How often for oil on synthetic?
Most GMCs: 5k–7.5k miles or 6 months, sooner for severe service. Follow your oil life monitor, but don’t ignore the time limit. For more details, check your manual or dealership resources.
Transmission “lifetime” fluid—really?
“Lifetime” means design lifetime under ideal use. If you tow, idle, or face harsh temps, a condition-based drain/fill can be smart. Check your manual for details; we’ll inspect and advise.
Brake fluid—do I really need to change it?
Yes—brake fluid absorbs moisture over time. A 24-month exchange maintains pedal feel and corrosion resistance. These recommendations apply to both traditional and electric vehicles.
Do I need winter tires with AWD?
AWD helps you go; winter tires help you stop/turn. Best safety upgrade for snow days.
Why Service at Kunes GMC of Stoughton
- GMC-trained techs + OEM diagnostics
- Transparent estimates with good/better/best parts options
- Warranty + recall checks at every visit
- Shuttle/comfort perks and photo/video inspections you can trust
