What is the maintenance schedule for Lexus NX300?
The NX300 follows Lexus’ Maintenance Minder system, which typically uses an A service every 5,000 miles (about 6 months) and a B service every 10,000 miles (about 12 months). Exact tasks can vary by model year and market, so check the owner’s manual or with a Lexus dealer for your specific car.
In practice, this schedule is designed to keep the turbocharged 2.0-liter engine and related systems in good working order, with routine oil changes, inspections, and fluid checks performed on a regular cadence. The details below reflect the standard pattern used on recent NX300 models, but your vehicle’s on-board Maintenance Minder will display the items due for your particular car.
Standard service intervals
Below is a breakdown of the typical A and B services used in the NX300 maintenance cycle. Note that exact items and timing can differ by year and region.
A service (about 5,000 miles / 6 months)
- Engine oil and oil filter replacement
- Comprehensive multi-point inspection of major systems
- Tire pressure check and tread depth assessment
- Fluid level checks and top-offs (coolant, brake fluid, windshield washer, etc.)
- Brake system inspection and battery/charging system check
The A service focuses on the basics—lubrication, safety checks, and ensuring all systems are functioning properly between longer visits.
B service (about 10,000 miles / 12 months)
- Engine oil and oil filter replacement
- Tire rotation and balance check
- Cabin air filter replacement (or inspection if not due) and engine air filter inspection
- Brake system inspection with wear assessment
- Battery and electrical system inspection; Maintenance Minder update
The B service builds on A by rotating tires, inspecting wear more thoroughly, and ensuring filters and electrical systems are in good condition.
Longer-term maintenance milestones
Beyond the routine A and B visits, NX300 owners will encounter longer-interval maintenance at higher mileages. These steps are typically spaced by years and mileage and depend on driving conditions and model year.
- Around 30,000 miles / 36 months: replacement or inspection of additional filters and a more thorough system check per Maintenance Minder guidance.
- Around 60,000 miles / 72 months: continued inspections with possible wear-item replacements and fluid checks; some fluid services may be due per the Minder.
- Around 90,000 miles / 108 months and beyond: major service items per the Maintenance Minder recommendations, which can include further filter replacements and critical fluid services.
Always rely on the Maintenance Minder in your NX300 and consult your dealer for the exact maintenance plan applicable to your year and market.
Market- and year-specific notes
Maintenance schedules can vary by country, engine variant, and model year. Some markets have different fluid specifications or additional checks, and Lexus may adjust intervals in newer releases. To avoid guesswork, refer to your owner’s manual, the on-board Maintenance Minder, or contact a Lexus service advisor for an exact plan tailored to your car.
Summary
The NX300’s maintenance framework centers on a recurring A/B cycle—oil changes and inspections roughly every 5,000 miles (A) and tire-related and broader inspections every 10,000 miles (B)—paired with longer-term checks at higher mileages. The most reliable way to stay on schedule is to follow the Maintenance Minder and consult the owner’s manual or a Lexus dealer for year- and region-specific guidance. Regular service supports performance, reliability, and resale value.
When should I change the transmission fluid in my Lexus NX 300?
The general interval for changing the Lexus NX300's transmission fluid is every 60,000 miles or 72 months, as specified in the maintenance schedule for severe driving conditions like towing or heavy loads. For normal driving, it is recommended to check the owner's manual for the exact interval, but for many models, a change around 30,000 to 40,000 miles is common. Signs like delayed shifting, strange noises, or fluid leaks indicate the need for a change sooner.
Regular service schedule
- Check the owner's manual: Consult your specific owner's manual for the manufacturer's recommendation, as intervals can vary by model year and driving conditions.
- General guideline: Many sources suggest changing the fluid every 30,000 to 60,000 miles for regular service. Some models may be serviced at 60,000 miles.
Severe driving conditions
- Frequent intervals: If you frequently drive under severe conditions, such as towing, using a car-top carrier, or heavy loading, you should change the fluid every 30,000 miles.
Signs that indicate a need for a change
- Warning lights: The transmission warning light on the dashboard is on.
- Strange noises: Grinding or odd noises when shifting gears.
- Delayed shifting: The transmission feels sluggish when changing gears.
- Leaks: You see transmission fluid leaks under the vehicle.
- Burnt smell: The transmission fluid has a burnt odor.
- Dirty fluid: The fluid on the dipstick looks dark or contaminated.
What is the recommended maintenance schedule for Lexus?
Lexus recommends a service every 5,000 miles or 6 months, which includes an oil and filter change, tire rotation, and various inspections. Key maintenance items recur at higher mileage intervals, such as brake fluid replacement at 30,000 miles, spark plug replacement at 60,000 miles, and timing belt replacement at 90,000 miles (for applicable models).
Every 5,000 miles or 6 months
- Rotate tires
- Inspect and adjust all fluid levels
- Inspect brake pads, calipers, and rotors
- Inspect wiper blades
- Perform a road test
- Check installation of the driver's floor mat
- Program Lexus Personalized Settings if requested
Every 10,000 miles or 12 months
- Replace engine oil and oil filter
- Replace cabin air filter
- Inspect brake pads, calipers, and rotors
- Inspect wiper blades
- Perform a road test
- Reset the scheduled maintenance reminder
Every 15,000 miles or 18 months
- Inspect engine air filter
- Inspect chassis nuts and bolts
- Inspect body
- Inspect axle shaft boots
- Inspect ball joints and dust covers
- Inspect steering linkage and boots
- Inspect rack-and-pinion assembly
- Replace smart key battery
Key services at major mileage intervals
- 30,000 miles / 36 months: Replace brake fluid, replace engine air filter, and replace A/C filter.
- 60,000 miles / 72 months: Replace transmission fluid (on applicable models), replace spark plugs (required for Emission Control Warranty).
- 90,000 miles / 108 months: Replace timing belt (on applicable models).
What is maintenance required on Lexus NX 300?
The Lexus NX 300 requires routine maintenance every 5,000 miles, including an oil change, oil filter replacement, tire rotation, and a multi-point inspection. More extensive services, such as brake fluid replacement and cabin air filter replacement, are due at specific intervals, like every 10,000 or 30,000 miles. The "Maintenance Required" light on the dashboard indicates a 5,000-mile service is due.
This video demonstrates how to reset the maintenance light on a Lexus NX 300: 1mThe Bravo ConnectionYouTube · Nov 2, 2023
Routine maintenance (every 5,000 miles)
- Engine oil and oil filter change
- Tire rotation
- Fluid level inspection and adjustment
- Multi-point inspection
- Wiper blade inspection
- Visual brake inspection
Other scheduled services
- Every 15,000 miles: All 5,000-mile services, plus body/chassis inspection, intercooler and engine coolant checks, and smart key battery replacement.
- Every 30,000 miles: All previous services, plus brake rotor inspection, transmission leak inspection, and engine air and cabin air filter replacements.
- Every 3 years/30,000 miles: Brake fluid replacement.
How to reset the "Maintenance Required" light
- Turn the ignition on (press the start button twice without your foot on the brake).
- Navigate through the multi-function display on your steering wheel to the vehicle settings or gear icon.
- Find the "Maintenance" or "Oil Maintenance" section.
- Select the option to reset the maintenance light and confirm.
You can watch this video for a step-by-step guide on resetting the maintenance light on a Lexus NX 300: 57sThe G Automotive And MoreYouTube · May 6, 2022
What is the maintenance schedule for a Lexus NX 300?
For best results and to keep your car in top shape, you can refer to the Lexus NX 300 maintenance schedule in the manual that comes with your car. Lexus recommends that Lexus NX service intervals begin at 15,000 miles. The car will need follow-up service between 15,000 miles and 30,000 miles after that.
