2018 GMC Sierra 1500 Maintenance Schedule

Your 2018 GMC Sierra 1500 is known for its fuel efficiency, upscale cabin, and high towing capacity. In order to keep your Sierra in good working condition for a long time, you’ll need to stay on top of its maintenance schedule. You can actually get up to 250,000 miles on your 2018 GMC Sierra if it’s properly maintained and no major modifications have been done. Here are some maintenance schedule tasks that you or your mechanic should perform to get the most use out of your truck.

Note: The maintenance schedule described in this article is specifically for the 2018 GMC Sierra 1500 5.3L V8. Maintenance tasks and schedules can vary between different engines/trims. Refer to your vehicle’s service manual for complete information on the scheduled maintenance recommended by the manufacturer.

Quick Notes from Our Automotive Subject Matter Expert, Mia Bevacqua

V8-powered versions of the GMC Sierra are prone to problems with the Active Fuel Management (AFM) system. While you can’t prevent a failure within the AFM system altogether, staying up to date on oil changes will help keep the passages and filter clean in the AFM valve lifter manifold assembly (VLOM). The AFM roller lifters also need a supply of fresh oil to operate properly.

–Mia Bevacqua, Automotive Subject Matter Expert at CarParts.com

Maintenance Schedule Tasks for Your 2018 Sierra

Auto maintenance should only be done by professionals who have the necessary skills and experience to diagnose and repair your 2018 GMC Sierra. Fortunately, you can always find an auto shop near you where you can get these jobs done at the best prices.

Every 7,500 Miles

• Inspect the brake system for damage
• Rotate the tires as recommended
• Replace engine air filter if needed
• Add more cooling system fluid if needed
• Check engine oil level and oil life percentage and replace oil and filter as needed
• Check seat belt system for wear and tear
• Check tire and wheel assembly for damage
• Check gas struts for damage
• Lubricate spare tire key lock operation as needed
• Check suspension and steering components for looseness and wear
• Check exhaust system and exhaust heat shield for damage
• Check fuel system for damage or leaks
• Check and test parking brake mechanism
• Check sunroof assembly
• Check windshield wiper assembly for signs of wear
• Add more windshield wiper fluid as needed
• Check and test accelerator pedal

Every 22,500 Miles

• Remove and replace the cabin air filter

Every 45,000 Miles

• Drain and refill transfer case fluid
• Remove and replace engine air filter
• Check EVAP system

Every 97,500 Miles

• Remove and replace spark plugs

Every 150,000 Miles

• Check and replace accessory drive belt if needed
• Drain, flush, and refill engine cooling system

Where to Get the Right 2018 GMC Sierra 1500 Parts

If you want to prolong your GMC Sierra 1500’s lifespan, you’ll have to follow the maintenance schedule indicated in your owner’s manual. These include performing oil changes, replacing spark plugs, and refilling it with new coolant. This process will require a lot of time and resources, but it’ll be worth it because it won’t compare to the hassle and expense of fixing broken parts. Luckily, getting replacement parts for your Sierra 1500’s maintenance is quick and convenient here at CarParts.com. 

CarParts.com offers a wide selection of high-quality parts for most vehicle systems. We have a great selection of spark plugs, engine air filters, and accessory belt drives from leading brands for your needs. Just use our search filters to easily browse through our selection. We also guarantee fast shipping, so you can expect to receive your new part in as fast as two business days.

Don’t wait for your 2018 GMC Sierra 1500 to develop issues. You should replace its spark plugs or engine air filter as soon as these parts reach the end of their lifespan.