maintenance
30K Service
for 2021 Hyundai Tucson 2.5L I4 · AWD
Difficulty
Easy
Time
2.0 h
Tools
12
Steps
11
Complete 30,000-mile maintenance service including oil change, filter replacements, fluid inspection, and multi-point safety inspection for the 2016-2024 Hyundai Tucson with 2.5L I4 AWD engine.
Warnings
⚠Engine oil and exhaust components may be extremely hot. Allow engine to cool for at least 30 minutes before beginning service.
⚠️Never work under a vehicle supported only by a jack. Always use jack stands rated for the vehicle weight.
ℹ️This service interval assumes normal driving conditions. Severe driving conditions may require more frequent service per owner's manual.
Tools required
17mm socket for lug nutsEssential
Torque wrench (10-150 Nm range)Essential
Oil filter wrenchEssential
Oil drain pan (6+ quart capacity)Essential
Floor jack and jack standsEssential
Wheel chocksEssential
FunnelEssential
10mm socket
Phillips screwdriver
Flathead screwdriver for clips
Shop rags
Nitrile gloves
Parts
- Engine oil filter × 1 — 26300-35503 or equivalent
- Engine air filter × 1 — 28113-D3300 or equivalent
- Cabin air filter × 1 — 97133-D3000 or equivalent
- Oil drain plug crush washer × 1 — 21513-23001 or equivalent
Fluids
- Hyundai Genuine 0W-20 — 5 qt
Preparation
- Park vehicle on level surface and engage parking brake
- Place wheel chocks behind rear wheels
- Allow engine to cool to safe working temperature (at least 30 minutes)
- Gather all required tools, parts, and fluids
- Verify you have the correct oil filter and air filters for your specific model year
Procedure
- 1Raise and secure vehicleLoosen all wheel lug nuts one turn while vehicle is on ground. Raise front of vehicle with floor jack at designated front jacking point. Install jack stands under frame rails. Lower vehicle onto jack stands. Raise rear of vehicle and install jack stands under rear frame rails. Remove all four wheels for full undercarriage inspection access.
- 2Drain engine oilLocate oil drain plug on bottom of oil pan. Position drain pan beneath drain plug. Using appropriate socket, loosen and remove oil drain plug. Allow oil to fully drain (approximately 5-10 minutes). Inspect drain plug threads and sealing surface for damage. Remove old crush washer from drain plug and install new crush washer.⚠Hot oil can cause severe burns. Ensure engine has cooled adequately.
- 3Replace oil filterLocate oil filter on driver side of engine block. Position drain pan beneath filter. Using oil filter wrench, rotate filter counterclockwise to remove. Allow residual oil to drain. Clean filter mounting surface on engine block with clean rag. Apply thin film of fresh oil to rubber gasket of new filter. Install new filter hand-tight, then tighten an additional 3/4 turn.
- 4Install drain plug and refill engine oilInstall oil drain plug with new crush washer. Torque drain plug to specification. Lower vehicle slightly if needed to access oil fill cap. Remove oil fill cap on top of engine. Using funnel, add 4.5 quarts of Hyundai Genuine 0W-20 engine oil. Wait 2 minutes for oil to settle, then check level with dipstick. Add remaining oil as needed to reach full mark between MIN and MAX on dipstick. Install oil fill cap.
- 5Replace engine air filterOpen hood and locate air filter housing on passenger side of engine bay. Release air box clips (typically 4 clips). Lift air box cover and remove old engine air filter. Inspect air box housing for debris and clean if necessary. Install new air filter ensuring proper seating in housing. Replace air box cover and secure all clips.
- 6Replace cabin air filterOpen glove box and remove contents. Press inward on both sides of glove box to release stops and lower fully. Locate cabin air filter cover behind glove box. Press tabs on cover and remove. Slide out old cabin air filter, noting airflow direction arrows. Clean filter housing with damp cloth if dusty. Install new cabin air filter with airflow arrows pointing in correct direction. Reinstall cover and glove box stops.
- 7Inspect fluids and componentsCheck coolant level in overflow reservoir (should be between MIN and MAX when cold). Inspect brake fluid level in master cylinder reservoir. Check windshield washer fluid and top off if needed. Inspect power steering system (electric, no fluid required). Visually inspect belts for cracks or wear. Check battery terminals for corrosion and ensure secure connections.
- 8Inspect AWD system and undercarriageWhile vehicle is raised, visually inspect front differential, rear differential, and transfer case for leaks. Check CV axle boots for tears or grease leakage. Inspect exhaust system for damage or excessive corrosion. Check brake pads and rotors for wear through wheel openings. Inspect suspension components for damage or excessive wear. Look for fluid leaks from engine, transmission, and cooling system.
- 9Check tire condition and pressureInspect all four tires for uneven wear, damage, or objects embedded in tread. Measure tread depth (minimum 2/32 inch). Check tire pressure with gauge when tires are cold and adjust to specification on driver door jamb sticker (typically 35 PSI front and rear). Inspect spare tire condition and pressure.
- 10Reinstall wheels and lower vehicleClean wheel mounting surfaces and brake rotor hubs of any rust or debris. Install wheels onto hubs, ensuring proper seating. Install lug nuts and tighten in star pattern by hand. Raise vehicle slightly to remove jack stands. Lower vehicle to ground. Torque all lug nuts in star pattern to specification.
- 11Start engine and verify operationStart engine and allow to idle. Monitor for oil pressure light (should extinguish within 2-3 seconds). Check for oil leaks around drain plug and filter. Allow engine to reach operating temperature. Verify no warning lights on instrument cluster. Check engine oil level again after engine reaches temperature and add if necessary.
Reassembly
- Ensure oil fill cap is properly installed and secured
- Verify air filter housing cover is fully latched
- Confirm glove box is properly reinstalled and operating normally
- Double-check that all lug nuts are torqued to specification in star pattern
Verification
- Start engine and verify oil pressure light extinguishes promptly
- Check for oil leaks under vehicle after running engine for 5 minutes
- Verify engine oil level is correct on dipstick after reaching operating temperature
- Confirm no warning lights are illuminated on instrument cluster
- Test drive vehicle and verify normal operation, no unusual noises or vibrations
- Recheck lug nut torque after test drive
- Reset maintenance reminder in instrument cluster if equipped