Lexus RX AL10

The 2GR-FE 3.5L V6 easily clears 300k+ km. VVT-i oil line (rubber hose) was a recall issue on pre-2010 models. Check water pump and ignition coils from 50k km. One of the most robust engines in its class.

• !! VVT-i Oil Supply Hose Failure (Service Campaign) from 110,000 km

  The rubber section of the VVT-i oil supply hose degrades from PCV blow-by gases. Develops a pinhole that expands into full rupture. Oil loss at highway speed causes catastrophic engine failure from oil starvation. Lexus issued warranty enhancement program TSB POL-14-02 in July 2014. Revised all-metal replacement part 15678-31010 available but some replacements also fail.

  Symptoms: Oil puddle under engine, low oil pressure warning light, sudden engine noise, oil spray on undercarriage
  200–500 $
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• !! Front Timing Cover Oil Leak from 130,000 km

  The 2GR-FE is notorious for oil leaking from the front timing chain cover where the block, head, and cover converge. RTV sealant fails over time. Repair requires engine and transmission removal on the RX due to tight packaging. Toyota estimates 24 hours labor for a $20 gasket. The leak is cosmetic initially but worsens progressively.

  Symptoms: Oil drip from front of engine, oil on AC compressor area, burning oil smell, oil puddle after parking
  3,000–6,000 $
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• !! Premature Water Pump Failure from 100,000 km

  Water pump failures are documented across the 2GR-FE family. The internal water pump can leak coolant externally or fail mechanically, causing overheating. Multiple shops report this as one of the most common 2GR-FE repairs. Failure can occur as early as 60,000 miles.

  Symptoms: Coolant leak from pump area, engine overheating, coolant level drops, steam from engine bay
  400–1,200 $
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3.5L Atkinson-cycle V6 hybrid — the RX 450h powertrain. Brake actuator failure is the defining issue, costing $2,500-$4,000 for replacement. Inverter coolant pump failures documented past 75,000 miles. The hybrid system itself (battery, inverter, e-CVT) is generally robust. Mild oil consumption is normal for Atkinson-cycle operation. Regenerative braking means brake pads last 60,000+ miles. The combination is efficient and smooth but the brake actuator bill can erase years of fuel savings.

• !! Brake Actuator Failure from 80,000 km

  The hybrid brake actuator assembly fails, making braking difficult and increasing crash risk. Repair costs $2,500-$4,000 for parts and labor. A documented pattern across RX 400h and RX 450h models. TSB L-SB-0005-21 addresses brake squawk/knock noise via actuator bleed. Not all actuator noise requires replacement — bleed procedure may resolve symptoms.

  Symptoms: Hard brake pedal, reduced braking force, ABS warning light, brake squawk or knock noise when pressing/releasing pedal
  2,500–4,000 $
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• !! Inverter Coolant Pump Failure from 120,000 km

  The electric coolant pump for the hybrid inverter fails, causing inverter overheating. Separate cooling circuit from the engine. Replacement is straightforward but the part is specific to the hybrid system.

  Symptoms: Hybrid system warning, reduced power, inverter overheating message, coolant loss from inverter circuit
  300–800 $
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• ! Moderate Oil Consumption from 100,000 km

  Atkinson-cycle operation increases oil consumption slightly compared to the standard 2GR-FE. Normal for the hybrid system. Check oil regularly — 1 quart per 5,000 miles is within spec.

  Symptoms: Oil level drops between changes, no leaks visible
  50–200 $
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