Your Vehicle Maintenance Checklist

The Most Common Services For Your Vehicle

Are you wondering how to make your vehicle last longer and continue to perform well? Here at Lighthouse, we’ve created a list of services for you to follow. Some are regular maintenance items and some are further down the road in owning your vehicle. The bottom line is this – no matter where you are at in your vehicle ownership journey, this list is for you!

Maintaining your vehicle well may take a little effort, but the benefits far outweigh. Not only do you decrease the chance of major repair bills, you are also able to prove a well-maintained vehicle when looking to trade it in. And at Lighthouse, your service advisor follows this maintenance schedule for each visit, to keep you informed of the upcoming maintenance items needed for your vehicle’s mileage and wear. Keep your vehicle in tip-top shape!

Maintenance Services

Dexos/Synthetic Oil Change

An oil change is the process of removing a vehicle's old motor oil and replacing it with fresh oil, and also replacing the oil filter.

How Often? Every 6,000 miles.



Tire Rotation

The process of moving a vehicle's tires to different positions to ensure even wear and extend the life of the tires.

How often? Every 5,000-7,500 miles to protect any manufacturer warranty on the tire.



Replace Cabin Air Filter

Replace the cabin air filter.

The cabin air filter is a filter designed to keep dust and debris from the exterior environment from getting inside of your vehicle.

How often? Every 18,000 miles or as it gets dirty.



Replace Engine Air Filter

Replace the engine air filter.

The engine air filter is designed to keep the air that enters the engine clean and free of contaminants.

How often? Every 18,000 miles or as it gets dirty.



 Replace Fuel Filter (Diesel)  

Replace the fuel filter.

The diesel fuel filter removes impurities from diesel fuel before it reaches the engine, which helps to maintain the engine's efficiency and prolong its life.

How often? Every 17,000-20,000 miles or when your diesel fuel filter monitor life is at 30%



Tire Alignment

Resetting the camber, caster and toe of the suspension.

Tire alignments prevent premature wear on tires and suspension. Without a proper alignment, tire warranty claims from the manufacturer can be declined for premature wear. Alignments also keep the vehicle driving straight on the road.

How often? Every 15,000 miles or once a year



Tire Balance

Reposition weights on the tires.

The purpose of balancing your tires is to eliminate any road vibrational noise and help with consistent tire wear. Without a proper tire balance, tire warranty claims from the manufacturer can be declined for premature wear.

How often? Every 15,000-20,000 miles or if there is vibrational feel in the tires at highway speeds.



Injection Service (Gas Engines Only)

Cleans the rails and injectors.

The injection service helps clean up fuel injector spray patterns and help improve fuel economy. There is an additive that also goes in the tank to stabilize poor fuel and continue cleaning.

How often? Every 30,000 miles



Induction Service (Gas Engines Only)

Cleans through the air intake system and cleans the Manifold Absolute Pressure (MAP) sensor, valve seats, valves, and intake runners.

The induction service helps reduce the amount of carbon build up on these components and creates more efficient air flow to the engine, improving engine performance. This applies to all direct injected gas engines. If you are not running top tier fuel, the port injected vehicle will need this treatment.

How often? Every 30,000 miles



Front/Rear Differential Service

Open the differentials, inspect the gears, drain old fluid, and fill with new fluid.

There’s importance for running good clean fluid is to help lubricate differential gears, which helps to prolong the life of the differentials. The differential in the vehicle is responsible for creating different speeds in the wheels so vehicles can turn and remain in balance.

How often? Every 45,000 miles (Rear Differential) Every 85,000 miles (Front Differential)



Transmission Fluid Exchange (With Filter as Needed)

The purpose of a transmission fluid exchange is to replace old, contaminated transmission fluid with fresh fluid, which helps to maintain proper lubrication and cooling of the transmission components, preventing wear and tear, ensuring smooth shifting, and extending the life of your transmission by removing debris and contaminants that accumulate over time.

How often? Every 45,000-60,000 miles



Transfer Case Service

Draining transfer case fluid and replacing with fresh, new fluid.

Delivers power from your drive axle to your drive train. Critical to have clean fluid for towing conditions and consistently change from 2WD to 4WD.

How often? Every 45,000 miles



Brake Fluid Exchange

Remove old contaminated fluid and swap out with new clean fluid.

Without clean brake fluid, you could create blockage in the brake lines, causing your calipers to hang up and create braking issues.

How often? Every 60,000 miles



Replace Spark Plugs (Turbo & Non-Turbo)

Remove and replace spark plugs and wires if needed.

Spark Plugs are essential to help ignite or create a spark that helps your engine produce power. Without replacement, fuel mileage may be reduced, poor acceleration may occur, and the vehicle may feel like is misfiring or rough idling.

How often? Every 60,000 miles(Turbo) Every 90,000 miles (Non-Turbo)



Coolant Exchange

Replace old coolant

Coolant is responsible for cooling off the engine and preventing overheating. Replacing the coolant allows the ridding of old debris or bad fluid and replacing with the correct coolant to keep the engine operating at the correct temperatures.

How often? Every 60,000 miles



Power Steering Flush

Replace power steering fluid with fresh, clean fluid.

Power Steering flushes are used to clean out old contaminated fluids and debris which can assist in the power steering system operating at a higher potential. In other terms, will assist with easier steering control.

How often? Every 60,000 miles



Replace Serpentine and Drive Belt

Replace the serpentine and drive belt and tension or idler pulley as needed.

The purpose of the serpentine/drive belt is to transfer power from a vehicle's engine to its accessories, such as the alternator, air conditioning, power steering, and water pump!

How often? Every 80,000 miles or as they fray/split



Replace Oil Pump Drive Belt 3.0L Diesel

Replace the oil pump and drive belt.

On the 2020-2025 3.0 LM2 and LZ0 engines there is a rubber belt that drives the oil pump. The drive belt runs from the crankshaft to the pump. If this belt breaks from mileage or age by exceeding the GM specified scheduled replacement period the engine will lose oil pressure and could ruin the engine assembly. If this happens, it could mean you would need a new engine. GM says replacing the oil pump drive belt is mandatory, this is not a recommendation!

How often? Every 150,000 miles



Replace Wiper Blades

Replace old wiper blades.

Helps clean water and debris off the windshield and give you visibility to see the road. This is a safety issue if they aren’t able to clear your windshield and have visibility.

How often? Replace when they streak or at least once a year

Vehicle Maintenance Schedule



Lighthouse Buick GMC

100 W Jackson St
Morton, IL 61550
Driving Directions
Sales 877-209-6257
Service 877-881-7861
Parts 309-266-1919
Monday 8:00AM - 5:30PM
Tuesday 8:00AM - 5:30PM
Wednesday 8:00AM - 5:30PM
Thursday 8:00AM - 5:30PM
Friday 8:00AM - 5:30PM
Saturday 9:00AM - 4:00PM
Sunday Closed
Monday 7:00AM - 5:30PM
Tuesday 7:00AM - 5:30PM
Wednesday 7:00AM - 5:30PM
Thursday 7:00AM - 5:30PM
Friday 7:00AM - 5:30PM
Saturday Closed
Sunday Closed
Monday 7:00AM - 5:30PM
Tuesday 7:00AM - 5:30PM
Wednesday 7:00AM - 5:30PM
Thursday 7:00AM - 5:30PM
Friday 7:00AM - 5:30PM
Saturday Closed
Sunday Closed


SERVICES 6K 12K 18K 24K 30K 36K 42K 48K 54K 60K 66K 72K 78K 84K 90K 96K 102K 108K 114K 120K
Lube, Oil & Filter X X X X X X X X X X X X X X X X X X X X
Rotate Tires X X X X X X X X X X X X X X X X X X X X
Cabin Air Filter X X X X
Fuel Filter (Diesel) X X X X X
Alignment or every year X X X X
Balance X X X X
Injection Service (Gas) X X X X
Induction Service (Gas) X X X X
Diff Service (Rear) X X
Transmission Service X X
Transmission Service with filter X X
T/Case Service X X
Brake Flush X X
Spark Plugs 4 cyl Turbo X
Coolant System Service or 5 Yr X
Power Steering Flush X
Serpentine and Drive Belt X
Diff Service (Front) X
Spark Plugs Non Turbo X
Oil Pump Drive Belt 3.0L (Diesel) 150K
Wiper Blades ONCE A YEAR

Lighthouse Certified Service Is Here To Serve!

Maintaining and prolonging the life of your vehicle is easy with Lighthouse Certified Service! Our team of advisors is trained to keep you and your vehicle on the road and on track with this maintenance schedule. Let’s get you scheduled!

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