2023 Lexus GX maintenance schedule
Schedule type: fixed
Lexus sets a service visit every 6 months or 5,000 miles, whichever comes first. Replace the engine oil (0W-20) and filter every 10,000 miles (at the 12-month visits in the log), or when the maintenance reminder light is due with the oil service. If 0W-20 is not available, 5W-20 may be used but must be replaced with 0W-20 at the next oil change. Every visit covers tire rotation, a brake drum/pad/disc inspection, fluid-level checks, wiper blades, driver's floor-mat check and a road test. At 15,000-mile visits the guide also lubricates the drive shaft, re-torques its nuts and bolts, tightens propeller shaft bolts and replaces the Smart Key battery. Cabin air filter, brake fluid and engine air filter are replaced every 30,000 miles or 36 months. Spark plugs are replaced at 120,000 miles. Summarized in our own words from the source listed. Always follow the owner's manual or your dealer for your specific vehicle (VIN, engine, and options).
Checked against the official document for model year 2023; other years in this range are assumed to follow it. Confirm in your owner's manual.
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5,000 miles / 6 months
Repeat every 5,000 miles or 6 months. Under special operating conditions, also replace the oil and filter at these visits.
- Rotate tires DIY
- Inspect brake drums, pads and discs DIY
10,000 miles / 12 months
Repeat every 10,000 miles or 12 months.
- Replace engine oil with 0W-20 oil and replace oil filter DIY
Listed at each 10,000-mile visit in the maintenance log.
Severe service: Every 6 months or 5,000 miles under special operating conditions.
Parts: Oil filter
15,000 miles / 18 months
Repeat every 15,000 miles or 18 months.
- Lubricate drive shaft; re-torque nuts and bolts Shop
Severe service: Also listed more often under off-road, towing, or road-salt conditions.
- Tighten propeller shaft bolts Shop
- Replace Smart Key battery DIY
Parts: Smart Key battery
- Inspect axle shaft boots, ball joints and dust covers, brake lines and hoses, drive shaft boots, engine coolant, exhaust pipes and mountings, front differential oil level, rack-and-pinion assembly, rear differential oil level, steering gear box, and steering linkage and boots Shop
- Replace front and rear differential oil (towing, car-top carrier, heavy loading, or extensive idling/low-speed driving) Shop
Severe-service item only.
30,000 miles / 36 months
Repeat every 30,000 miles or 36 months.
- Replace cabin air filter DIY
Parts: Cabin air filter
- Replace brake fluid Shop
- Replace engine air filter DIY
Parts: Engine air filter
- Inspect active height control system gas chamber (if equipped), axle shaft boots, ball joints and dust covers, brake lines and hoses, brake rotor thickness and runout, drive shaft boots, engine coolant, exhaust pipes and mountings, front differential oil level, fuel lines/tank band/vapor vent hoses, fuel tank cap gasket, rack-and-pinion assembly, rear differential oil level, steering gear box, steering linkage and boots, transfer case oil level, and transmission for signs of leakage Shop
- Replace transfer case oil (off-road/dirt/dusty roads, or towing/heavy loading/extensive idling) Shop
Severe-service item only.
- Replace front and rear differential oil (towing, car-top carrier, heavy loading, or extensive idling/low-speed driving) Shop
Severe-service item only.
60,000 miles / 72 months
- Inspect drive belt Shop
Listed in the 60,000-mile inspection set.
- Replace active height control suspension fluid (if equipped) Shop
Listed at the 60,000-mile visit for equipped vehicles.
100,000 miles / 120 months
- Replace engine coolant Shop
First replacement at 100,000 miles or 120 months, then every 50,000 miles or 60 months.
120,000 miles / 144 months
- Replace spark plugs Shop
Listed at 120,000 miles. Spark plug maintenance is required under the Emissions Control Warranty.
Parts: Spark plugs
Sources
Always follow the owner's manual for your exact vehicle; intervals can differ by engine and market.