2023 GMC Sierra Denali 3500 HD Maintenance Schedule
The 2023 GMC Sierra Denali 3500 HD’s repair schedule shows how committed the company is to making sure this heavy-duty truck lasts as long as possible, performs at its best, and is safe. A meticulous maintenance schedule is necessary for a vehicle that was built to handle tough jobs and navigate rough terrain. Regular check-ups, fluid changes, tire rotations, and brake inspections are all part of this thorough program to make sure that all parts are working at their best. GMC suggests carefully following their repair schedules, only using original replacement parts, and only letting certified technicians work on the truck who are very familiar with its complex systems.
By following this detailed maintenance plan, owners can make sure that their 2023 Sierra Denali 3500 HD keeps giving drivers, haulers, and tow vehicles the great experience that is typical of the GMC Denali brand. They can also make sure that it lasts longer and is more reliable, solidifying its reputation as a heavy-duty truck workhorse.
Service and Maintenance
Severe Conditions Requiring More Frequent Maintenance*
- Mainly driven in heavy city traffic in hot weather.
- Mainly driven in hilly or mountainous terrain.
- Frequently towing a trailer.
- Used for high-speed or competitive driving.
- Used for taxi, police, or delivery service.
Additional Required Services — Severe Service Every 72,000 km (45,000 mi) Change electric drive unit fluid. See Recommended Fluids and Lubricants 0 361. Owner Checks and Services Every Five Years
- Replace brake fluid every five years. See Brake Fluid
Every Seven Years
- Replace Air Conditioning Desiccant every seven years. The air conditioning system requires maintenance every seven years. This service requires replacement of the desiccant to help the longevity.
Service and Maintenance efficient operation of the air conditioning system. This service can be complex. See your dealer.
Multi-Point Vehicle Inspection (MPVI)
A Multi-Point Vehicle Inspection (MPVI) completed by a GM dealer technician is a maintenance assessment of your vehicle. The benefit of the MPVI is to identify and inform the customer of service items that require immediate attention and those that may require attention in the future. The technician will perform the following checks on your vehicle. For a complete list of checks, inspections, and services, see your dealer. Some items may not apply to your vehicle and/or region
Diagnostics
- OnStar active, if equipped
- Service history/recall check
Exterior Lights
- Visual inspection
Windshield and Wipers
- Visual inspection
Battery
- Battery visual inspection
- Battery test results
- Battery cables and connections
Systems, Fluids, and Visible Leak Inspection
- Electric Drive Unit
- Drive axle
- Transfer case
- Power electronics cooling system. Windshield washer fluid
Tire Inspection
- Tire pressure, tread depth, and wear. Rotation, if applicable
- Alignment check, optional
- Reset tire pressure monitor
- Check tire sealant expiration date, if equipped
- Check spare tire, if equipped
Brakes
- Check brake system
Visible and Functional Inspections
- Seat belt components
- Accelerator pedal
- Passenger compartment air filter,
- if equipped
- Hoses
- Shocks and struts
- Steering components
- Axle boots or driveshaft and u-joints
- Compartment lift struts, if equipped
- Floor mats secured, no interference with pedals
- Horn
- Starter switch
Lubricate
- Chassis components
Owner Checks and Services
- At least twice a year, have an underbody flushing service performed. See “Underbody Maintenance” in Exterior Care .
Recommended Fluids, Lubricants, and Parts Recommended Fluids and Lubricants Fluids and lubricants identified below by name or specification, including fluids or lubricants not listed here, can be obtained from your dealer.
| Usage |
Fluid/Lubricant |
| Electric Drive Unit | DEXRON ULV Automatic Transmission Fluid. |
| Hydraulic Brake System | GM approved DOT 4 Hydraulic Brake Fluid. |
| Key Lock Cylinders, Hood and Tailgate/Swing Gate Hinges | Multi-Purpose Lubricant, Superlube. See your dealer. |
| Vehicle Coolant Circuits | Use only ACDelco Premix (50/50 mixture of de-ionized water and DEX-COOL Coolant). See your dealer. |
| Windshield Washer | Automotive windshield washer fluid that meets regional freeze protection requirements. |
Maintenance Replacement Parts Replacement parts identified below by name, part number, or specification can be obtained from your dealer.
| Part | GM Part Number |
ACDelco Part Number |
| Passenger Compartment Air Filter | 13508023 | CF185 |
| Wiper Blades | ||
| Driver Side – 360 mm (14 in) | 86816403 | — |
| Center – 360 mm (14 in) | 86816403 | — |
| Passenger Side – 360 mm (14 in) | 86816403 | — |
Maintenance Records
After the scheduled services are performed, record the date, odometer reading, who performed the service, and the type of services performed. Retain all maintenance receipts
FAQ
The recommended oil change interval is between 7,500 and 10,000 miles, but it is best to consult your owner’s manual for manufacturer-specific instructions.
Typically, tire rotation is recommended every 6,000 to 8,000 miles. Check the owner’s manual for the suggested maintenance schedule.
Air filters should be inspected and replaced at each oil change. In dusty environments, replacements may be required more frequently.
GMC typically recommends a coolant replacement every 5 years or 100,000 miles; however, consult your owner’s manual for specific instructions.
Changing the fluid in an automatic transmission is typically recommended every 30,000 to 60,000 miles. Refer to the owner’s manual for specific instructions.
Brake pad replacement depends on your driving behaviors and road conditions, but they are typically inspected and replaced during routine maintenance.
The interval between spark plug replacements differs, but is typically between 30,000 and 100,000 miles. Consult the owner’s manual for more information.
Drive belts should be inspected at every oil change and replaced if they exhibit symptoms of wear and tear.
The fuel filter should be replaced every 30,000 to 60,000 miles or when your vehicle’s performance indicates it.
Check your battery and its terminals for corrosion and damage on a regular basis. As needed, clean and adjust them. Some batteries may last three to five years or more.
Depending on traveling conditions, the cabin air filter should be replaced every 15,000 to 30,000 miles.
Have the suspension system inspected during routine maintenance or if you observe issues such as noise, vibration, or uneven tire wear.
Wheel alignments are required when steering issues or uneven tire degradation are observed. In addition, they may be recommended following certain repairs or component replacements.
It is recommended to change differential and transfer case fluids every 30,000 to 60,000 miles. Refer to the owner’s manual for more information.
Check timing belts or chains according to the manufacturer’s recommendations, which can vary greatly. Some may last between 60,000 and 100,000 miles.
Useful Link
View Full PDF : GMC Sierra Denali 3500 HD 2023 User Guide | Auto User Guide
Fuses and Fuse Box: 2023 GMC Sierra Denali 3500 HD Fuses and Fuse Box Operations