Complete major tune-up service including spark plugs, air filter, cabin filter, engine oil and filter change, and inspection of ignition system and related components.

Warnings

Tools required

Parts

• Spark plugs (Iridium) × 4 — 90919-01253 or equivalent NGK/Denso
• Engine oil filter × 1 — 04152-YZZA1 or equivalent
• Engine air filter × 1 — 17801-0P051 or equivalent
• Cabin air filter × 1 — 87139-02090 or equivalent
• Oil drain plug crush washer × 1 — 90430-12031

Fluids

• Toyota Genuine 0W-20 engine oil — 5 qt

Preparation

1. Ensure engine is completely cold (not driven for at least 2 hours)
2. Park vehicle on level surface and engage parking brake
3. Raise front of vehicle with jack and support on jack stands at proper jacking points
4. Remove engine splash shield if equipped for oil drain access
5. Gather all tools, parts, and fluids before beginning
6. Have oil drain pan and 6 quarts waste oil capacity ready

Procedure

1. 1

   Remove engine cover and air intake system
   Remove the plastic engine cover by pulling upward on the four corner clips. Loosen the air intake duct clamp at the throttle body using a flathead screwdriver. Disconnect the mass airflow sensor electrical connector by pressing the release tab. Remove the air box mounting clips and lift the entire air box assembly out of the engine bay.
   Torque spec

   Air Box Clips5 Nm (4 lb-ft)
2. 2

   Replace engine air filter
   Open the air box housing by releasing the clips on both sides. Remove the old air filter element and inspect the housing for debris or contamination. Clean housing if necessary with a dry cloth. Install the new air filter ensuring it seats properly in the housing grooves. Close the air box and secure the clips.
3. 3

   Replace cabin air filter
   Open the glove box and remove contents. Squeeze both sides of the glove box inward to release the damper arms and lower the glove box fully. Remove the cabin air filter cover by pressing the tabs on both sides. Slide out the old cabin air filter noting the airflow direction arrows. Install new cabin air filter with airflow arrows pointing in the correct direction (typically toward the back of vehicle). Reinstall cover and glove box.
4. 4

   Disconnect ignition coils
   Locate the four ignition coils on top of the engine. Press the locking tab on each coil electrical connector and pull straight up to disconnect. Remove the 10mm bolt securing each coil pack. Carefully wiggle and pull each coil straight up out of the spark plug wells. Inspect coil boots for damage or oil contamination.
   ⚠If oil is present in spark plug wells, valve cover gasket replacement is needed to prevent future ignition problems.
5. 5

   Remove old spark plugs
   Using compressed air or a clean cloth, carefully clean around each spark plug well to prevent debris from falling into cylinders. Insert the 5/8" spark plug socket with extension into each well. Turn counterclockwise to remove each spark plug. Inspect old plugs for abnormal wear, oil fouling, or incorrect gap which may indicate engine issues.
   ⚠️Never drop anything into open spark plug holes. Foreign objects will cause catastrophic engine damage.
6. 6

   Install new spark plugs
   Verify new spark plugs are pre-gapped to 0.039-0.043 inches (1.0-1.1mm) specification. Apply a small amount of anti-seize compound to the threads (optional but recommended). Hand thread each spark plug carefully to avoid cross-threading. Once hand-tight, use torque wrench to tighten to 20 Nm (15 lb-ft). If no torque wrench available, tighten 1/16 turn past snug for new plugs.
   ⚠Cross-threading spark plugs will destroy cylinder head threads requiring expensive repair. Always start by hand and ensure smooth threading.
   Torque spec

   Bracket Bolts20 Nm (15 lb-ft)
7. 7

   Reinstall ignition coils
   Apply a thin layer of dielectric grease to the inside of each coil boot. Align each coil with its spark plug and push firmly until it seats completely. Install and hand-tighten the 10mm mounting bolt on each coil, then torque to 11 Nm (8 lb-ft). Reconnect each coil electrical connector until it clicks into place.
   Torque spec

   Sensor Bolts11 Nm (8 lb-ft)
8. 8

   Drain engine oil
   Position oil drain pan under the oil drain plug located on the passenger side of the oil pan. Using a 14mm socket, loosen the drain plug and remove by hand once loose (oil will flow quickly). Allow oil to drain completely for at least 5 minutes. Inspect drain plug threads and sealing surface for damage. Remove old crush washer from drain plug and discard.
   ⚠Engine oil may still be warm even after cooling period. Avoid direct skin contact with used engine oil.
9. 9

   Install drain plug with new washer
   Install new crush washer onto the oil drain plug. Thread the drain plug by hand into the oil pan to ensure proper threading. Once hand-tight, use torque wrench to tighten to 35 Nm (26 lb-ft). Do not over-tighten as this may strip the aluminum oil pan threads.
   ⚠Always use a new crush washer. Reusing old washers will result in oil leaks.
   Torque spec

   Oil Drain Plug35 Nm (26 lb-ft)
10. 10

    Replace oil filter
    Locate the oil filter on the front passenger side of the engine (accessible from below). Position drain pan under filter. Using oil filter wrench, turn filter counterclockwise to remove. Allow residual oil to drain. Clean the filter mounting surface on the engine block. Apply a thin film of fresh engine oil to the rubber gasket on the new filter. Thread new filter by hand clockwise until gasket contacts the mounting surface, then tighten an additional 3/4 turn by hand only.
    ℹ️Do not use oil filter wrench to install new filter. Hand-tightening only prevents gasket damage and over-tightening.
11. 11

    Add fresh engine oil
    Remove the oil filler cap located on top of the valve cover. Insert funnel and add 4.5 quarts of Toyota Genuine 0W-20 engine oil. Wait 2 minutes for oil to settle, then check dipstick level. Add remaining oil in small increments until level reaches the upper mark on dipstick (typically between 4.7-5.0 quarts total). Install oil filler cap hand-tight.
12. 12

    Reinstall air intake system
    Position the air box assembly back into place in the engine bay. Secure the mounting clips to the specified torque. Reconnect the mass airflow sensor electrical connector until it clicks. Attach the air intake duct to the throttle body and tighten the clamp securely. Reinstall the engine cover by pressing down firmly on all four corners until clips engage.
    Torque spec

    Air Box Clips5 Nm (4 lb-ft)
13. 13

    Start engine and check for leaks
    Lower vehicle from jack stands if raised. Start the engine and allow it to idle. Immediately check under vehicle for oil leaks at drain plug and filter. Check around spark plug wells and ignition coils for proper seating. Allow engine to reach operating temperature (typically 5-10 minutes). The maintenance required light will illuminate; this is normal and will be reset in the next step.
    ⚠️If oil pressure warning light remains illuminated or engine makes unusual noises, shut off immediately and investigate.
14. 14

    Reset maintenance reminder
    Turn ignition to ON position without starting engine. Ensure odometer is displayed (not Trip A or B). Turn ignition OFF. Press and hold the odometer reset button while turning ignition to ON position. Continue holding button until maintenance light begins flashing, then goes out (approximately 10-15 seconds). Release button and turn ignition OFF. Verify reset by turning ignition back ON and confirming maintenance light is no longer illuminated.

Reassembly

1. Reinstall engine splash shield if removed, torquing fasteners to specification
2. Double-check that all electrical connectors are fully seated and locked
3. Verify engine cover and air box are properly secured
4. Check that no tools or materials were left in engine bay

Verification

• Start engine and verify smooth idle with no misfires or rough running
• Check engine oil level on dipstick after engine warms up and is shut off for 5 minutes; level should be between MIN and MAX marks
• Inspect ground under vehicle for any oil leaks after test drive
• Verify maintenance reminder light has been successfully reset
• Test drive vehicle for 10-15 minutes, confirming normal acceleration and no check engine light
• Re-check oil level after test drive and top off if necessary

More procedures for this vehicle