2023 GMC Terrain Maintenance Schedule
The 2023 GMC Terrain Maintenance Schedule is meant to keep your car running well, lasting a long time, and keeping you safe. Because GMC wants to be the best, they have made a detailed plan for how to do important maintenance jobs at set times, taking into account the Terrain model’s specific needs. This schedule includes important things like changing the oil, rotating the tires, inspecting the brakes, checking the fluids, and other important things that are good for your car’s general health. By following this carefully thought-out maintenance plan, 2023 GMC Terrain drivers can not only make their vehicles more reliable, but they may also be able to avoid expensive repairs in the future. This plan shows that GMC wants to give drivers a clear and proactive way to take care of their vehicles. This will make sure that the Terrain keeps running smoothly and dependably for a long time.
Maintenance Schedule
Tire Rotation and Required Services Every 12 000 km (7,500 mi)
Tires are rotated to achieve a more uniform wear for all tires. The first rotation is the most important. Anytime unusual wear is noticed, rotate the tires as soon as possible, check for proper tire inflation pressure, and check for damaged tires or wheels. If the unusual wear continues after the rotation, check the wheel alignment. See When It Is Time for New Tires 0 301 and Wheel Replacement.
- Perform Multi-Point Vehicle Inspection. See Multi-Point Vehicle Inspection (MPVI).
- Lubricate body components. See Exterior Care.
Additional Required Services — Normal Service
Every 12 000 km (7,500 mi)
- Check engine oil level and oil life percentage. If needed, change the engine oil and filter, and reset the oil life system. Or when the CHANGE ENGINE OIL SOON message displays, have the engine oil and filter changed within the next 1,000 km/ 600 mi. If driven under the best conditions, the engine oil life system may not indicate the need for vehicle service for up to a year. The engine oil and filter must be changed at least once a year and the oil life system must be reset. Your trained dealer technician can perform this work. If the engine oil life system is reset accidentally, service the vehicle within 5 000 km/3,000 mi since the last service Reset the oil life system when the oil is changed. See Engine Oil Life System
- When the REPLACE AT NEXT OIL CHANGE message displays, the engine air filter should be replaced at the next engine oil change. When the REPLACE ENGINE AIR FILTER SOON message displays, the engine air filter should be replaced at the earliest convenience. Reset the engine air filter life system after the engine air filter is replaced. See Engine Air Filter Life System.
Every 36 000 km (22,500 mi)
- Passenger compartment air filter replacement (or every 24 months, whichever occurs first). A more frequent replacement may be needed if the vehicle is driven in areas with heavy traffic, poor air quality, areas with high dust levels, or are sensitive to environmental allergens. Filter replacement may also be needed if you notice reduced airflow, windows fogging up, or odors. Your local GM Service location can help you determine when it is the right time to replace your filter.
Every 96 000 km (60,000 mi)
- Replace spark plugs. Inspect spark plug wires and/or boots.
Every 161 000 km (100,000 mi)
- Replace hood and/or body lift support gas struts. Or every 10 years, whichever comes first. See Gas Strut(s) 0 279.
Every 240 000 km (150,000 mi)
- Change rear axle fluid, if equipped with AWD. Do not directly power wash the transfer case and/or front/rear axle output seals. High-pressure water can overcome the seals and contaminate the transfer case fluid. Contaminated fluid will decrease the life of the transfer case and/ or axles and should be replaced.
- Drain and fill the engine cooling system. Or every six years, whichever comes first. See Cooling System.
Severe Conditions Requiring More Frequent Maintenance*
- Public service, military, or commercial use vehicles to include the following:
- Ambulances, police cars, and emergency rescue vehicles.
- Civilian vehicles such as light-duty pick-up trucks, SUVs, and passenger cars are used in military applications.
- Recovery vehicles such as tow trucks and flatbed single-vehicle carriers or any vehicle that is consistently used in towing trailers or other loads.
- High-use commercial vehicles such as courier delivery vehicles, private security patrol vehicles, or any vehicles that operate on a 24-hour basis.
- Any vehicle consistently operated in a high sand or dust environment such as those used on oil pipelines and similar applications.
- Vehicles are regularly used for short trips of 6 km (4 mi) or less. The oil life indicator will show you when to change the oil and filter. Under severe conditions, the indicator may come on before 12,000 km (7,500 mi).
Footnote: Under extreme driving conditions listed above, it may be necessary to replace your spark plugs at more frequent intervals. For further assistance in determining the most suitable service maintenance intervals for your vehicle, please contact your authorized GM Dealer.
Extreme service is for vehicles driven off-road in four-wheel drive or used in farming, mining, forestry, or snow plowing.
Additional Required Services — Severe Service
Every 72 000 km (45,000 mi)
- Change automatic transmission fluid.
Every 120 000 km (75,000 mi)
- Change rear axle fluid, if equipped with AWD. Do not directly power wash the transfer case and/or front/rear axle output seals. High-pressure water can overcome the seals and contaminate the transfer case fluid. Contaminated fluid will decrease the life of the transfer case and/ or axles and should be replaced.
Owner Checks and Services Every Five Years
- Replace brake fluid every five years. See Brake Fluid.
Every Seven Years
- Replace the Air Conditioning Desiccant every seven years. The air conditioning system requires maintenance every seven years. This service requires the replacement of the desiccant to help the longevity and 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
Engine Oil and Filter
- Engine oil
- Oil life monitor
- Reset the oil life monitor
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
- Engine oil
- Transmission
- Drive axle
- Transfer case
- Engine cooling system
- Power steering, if equipped
- Fuel system
- Windshield washer fluid
Tire Inspection
- Tire pressure, tread depth, and wear. Rotation, if applicable
- Alignment check, optional
- Reset the 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
- Exhaust system
- Accelerator pedal
- Passenger compartment air filter, if equipped
- Engine air filter
- Hoses
- Belts
- Shocks and struts
- Steering components
- Axle boots or driveshaft and u-joints
- Compartment lift struts, if equipped
- Floor mats are secured, no interference with
- Horn
- Ignition lock, if equipped. Starter switch
- Evaporative control system
Lubricate
- Chassis components
Special Application Services
- Severe Commercial Use Vehicles Only: Lubricate chassis components every oil change.
- Have 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 |
| Automatic Transmission | DEXRON-VI Automatic Transmission Fluid |
| Engine Coolant | 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant. See Cooling System. |
| Engine Oil | Engine oil meets the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. See Engine Oil 0 265. |
| Hood and Door Hinges, and Key Lock Cylinders | Multi-Purpose Lubricant. See your dealer. |
| Hood Latch Assembly, Secondary Latch, Pivots, Spring Anchor, and Release Pawl | Lubricant meeting requirements of NLGI #2, Category LB or GC-LB. |
| Hydraulic Brake System | DOT 4 Hydraulic Brake Fluid |
| Rear Axle (All-Wheel Drive) | See your dealer. |
| Transfer Case (All-Wheel Drive) | Transfer Case Fluid. 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 |
| Engine Air Cleaner/Filter | 84390002 | A3240C |
| Engine Oil Filter | 12706595 | PF64 |
| Passenger Compartment Air Filter | 13508023 | CF185 |
| Spark Plugs | 12683541 | 41-156 |
| Wiper Blades | ||
| IDriver Side – 60 cm (24 in) | 84566977 | – |
| IPassenger Side – 45.0 cm (18 in) | 84574892 | – |
| IRear – 30.0 cm (12 in) | 85118765 | – |
Maintenance Records
After the scheduled services record the date, odometer reading, who performed the service, and the type of services performed in the boxes provided. Retain all maintenance receipts.
| Date | Odometer Reading | Serviced By | Services Performed |
FAQs
A: The recommended oil change interval for the 2023 GMC Terrain is typically every 7,500 miles or six months, whichever comes first.
A: The air filter should be replaced approximately every 30,000 miles under normal driving conditions, but it’s advisable to check it more frequently in dusty or harsh environments.
A: Tire rotation is recommended every 7,500 miles to ensure even wear and extend the life of your tires.
A: The coolant should be replaced every 100,000 miles or every five years, whichever comes first.
A: Spark plug replacement is generally recommended every 100,000 miles for the 2023 GMC Terrain.
A: It’s advisable to check the brake fluid level and condition during every oil change and top it off if necessary.
A: The transmission fluid should typically be changed every 45,000 to 60,000 miles, depending on driving conditions.
A: Inspect the drive belts every 30,000 miles and replace them if signs of wear, cracking, or damage are present.
A: Regularly check the battery during routine maintenance and replace it if it shows signs of low charge or is more than three years old.
A: Brake pad replacement is typically needed every 25,000 to 70,000 miles, depending on driving habits and conditions.
A: The cabin air filter should be replaced every 15,000 to 25,000 miles, or more frequently in dusty or polluted environments.
A: Regularly check the power steering fluid level and condition during oil changes, topping it off if necessary.
A: Have the suspension system inspected every 50,000 miles or as needed, especially if you notice unusual noises or handling issues.
A: The fuel filter should be replaced approximately every 30,000 miles.
A: It’s recommended to have the wheel alignment checked annually if you experience steering issues or notice uneven tire wear.
Useful Link
View Full PDF: 2023 GMC Terrain User Guide | Auto User Guide