Steps to Reset the GMC Denali Service Interval Light
Press the start button twice without your foot on the brake to put the GMC Denali into run mode (engine off) OR start the engine.
Press the MENU button until the Remaining Engine Oil Life percentage is shown on the information display screen.
Hold down the SET/CLR button until the remaining oil life percentage resets to 100%.
The 2014-2024 GMC Denali Service Required Maintenance reminder should only be reset after changing the oil and oil filter on the car.
Why It's Important to Reset the GMC Denali Maintenance Light
Resetting the oil life indicator in your GMC Denali is essential for tracking when it’s time for an oil change and evaluating the state of the engine oil. This aids in planning upcoming maintenance. Furthermore, it’s advised to maintain an individual record of each oil change and related service. Gather and preserve all pertinent service documentation. Such a practice guarantees the best care for your GMC Denali and acts as evidence of regular maintenance, which is advantageous if you choose to sell the vehicle in the future.
GMC Denali Oil Type and Quantity
The 2014-2024 GMC Denali 3.6L requires 6 Quarts of 5W-30 Synthetic oil.
How Often Should You Change the Oil on Your GMC Denali?
It’s highly recommended to perform oil changes on your GMC Denali every 3,000 miles. Despite some experts, service centers, and dealerships proposing longer intervals, sticking to the 3,000-mile schedule is significant. Consistently following this routine is key to preserving the engine’s performance in your GMC Denali and avoiding a range of possible problems. Regular oil changes aid in ensuring the engine runs efficiently and provide an opportunity for a comprehensive check-up of the vehicle with each service. Engaging in this habit assists in the early detection and fixing of minor issues before they escalate into larger concerns.
What to Do If the GMC Denali Oil Life Reset Procedure Does Not Work?
If you encounter challenges while trying to reset the oil life percentage in your GMC Denali, consider restarting the process. Initially, shut off the engine and the ignition, and then begin the reset sequence anew. Make sure the hood and all doors are firmly shut before proceeding.
Why is the GMC Denali Oil Life Percentage not at 100% after Changing the Oil?
Simply changing the oil and oil filter won’t automatically deactivate or reset the maintenance light in the Denali. If the oil life percentage in your GMC Denali doesn’t reset post oil change, it usually indicates that the reset procedure wasn’t executed after changing the oil.
General GMC Denali Maintenance Tips
Check Tire Pressure and Tire Tread
The recommended tire pressure for your GMC Denali is listed on a white or yellow sticker on the door panel, which can be seen when you open the driver’s side door. The Denali front and rear tires cold recommended air pressure is 35 psi. To prevent overinflation, it’s best to inflate the tires when they are cold, meaning either three hours after the vehicle has been driven or before you start driving. For evaluating the wear of the tire tread, utilize either the penny test or a tread depth gauge.
Rotate Your Tires
We advise rotating the tires of your GMC Denali with every other oil change, assuming you’re following our suggested 3,000-mile oil change interval, or otherwise every 6,000 miles.
Check the Coolant Level
Make sure the coolant level is within the correct range in the coolant reservoir, sitting between the minimum and maximum indicator marks. Employing a flashlight can assist in better visibility inside the coolant container. Since the coolant system is sealed, a significantly low coolant level could suggest a leak. Conducting a pressure test on the system is an effective method for detecting any possible leaks.
Check the Brake Pads and Rotors
Inspect the brake pad thickness on both front and rear brakes of your GMC Denali to confirm they have enough pad material. Utilize a brake pad measuring tool for an accurate thickness assessment. Additionally, examine the rotors for any rust or anomalies. When your GMC Denali is elevated on a jack or lift, rotate each wheel manually (with the parking brake disengaged) to check for smooth rotation. Resistance in any wheel’s movement might indicate an issue with the brake caliper or jammed slider pins in the caliper.
Check Brake Fluid Reservoir
It’s essential to maintain a full brake fluid reservoir in your GMC Denali. Discovering an unusually low level of brake fluid typically implies a leak in the system. In this event, first replenish the brake fluid reservoir, then proceed to examine the brake calipers and lines for any indications of leaks.
Check Washer Fluid Level
Refill your washer fluid reservoir. During winter, choose a washer fluid with antifreeze properties to avoid freezing inside the container.
Check the Engine and Cabin Air Filters
Access the air filter box in your GMC Denali and extract the air filter. If it looks dirty, clean it using compressed air, a vacuum, or by shaking out the dust and debris. In case of excessive dirtiness, replace it with a new one. If it appears fairly clean, just put it back in place. Don’t forget to inspect the cabin air filter located behind the glove box, which purifies the air inside the cabin. Change this filter if it’s unclean or has not been replaced before.
Check the Power Steering Fluid
Ensure that the power steering fluid in your GMC Denali is at the ‘full’ level on the reservoir. A lower than normal fluid level might point to a leak in the power steering system. Should the level be low, refill the fluid and proceed to inspect the power steering rack and lines for any possible leaks.
Benefits of Regular Oil Changes
Throughout my ten years as an automotive technician in both dealership and independent shop settings, I’ve observed that vehicles without regular maintenance tend to encounter more frequent and serious problems. Although some car makers suggest oil change intervals of 5,000 to 20,000 miles, I recommend a 3,000-mile oil change schedule for the GMC Denali, regardless of the manufacturer’s guidance. This approach is crucial for sustaining optimal performance and extending the vehicle’s life. Regular oil changes play a vital role in reducing engine wear and can improve fuel efficiency by up to 2%. They also help in keeping the engine clean, preventing the build-up of harmful deposits that could shorten the engine’s lifespan.