The 2019 IS 300 with the 3.5L V6 (2GR-FSE) is generally solid but carries a critical fuel pump recall and exhibits transmission oil cooler failures that can grenade the transmission if ignored. Engine internals rarely fail unless severely neglected or improperly modified.
Fuel Pump Failure (NHTSA Recall)
Common · high severitySymptoms: Engine stalling at operating temperature, especially during acceleration, Rough idle or hesitation under load, Check engine light with fuel trim/lean codes, No-start condition after sitting overnight
Fix: Covered under NHTSA recall if not already completed. Requires fuel tank drop, pump module replacement. 2.5-3.5 hours labor if paying out-of-pocket post-recall.
Estimated cost: $800-1,200
Transmission Oil Cooler Internal Failure
Occasional · high severityTypical onset: 70,000-120,000 mi
Symptoms: Strawberry milkshake appearance in transmission fluid (ATF/coolant mix), Transmission slipping, delayed engagement, or shuddering, Overheating transmission despite normal coolant temps, Metal debris in transmission pan during fluid service
Fix: Cooler fails internally, cross-contaminating coolant and ATF. Requires radiator replacement, full cooling system flush, transmission flush or rebuild depending on contamination severity. If caught early (just cooler): 4-5 hours. If transmission damaged: add 12-18 hours for rebuild.
Estimated cost: $1,500-2,200 (cooler only), $4,500-6,500 (with transmission rebuild)
Transmission Mount Deterioration
Common · low severityTypical onset: 60,000-100,000 mi
Symptoms: Clunk or thud on acceleration/deceleration, Excessive vibration at idle in Drive, Shifter feels notchy or imprecise, Visible tearing or oil contamination on rubber mount
Fix: Hydraulic transmission mount wears from heat and fluid leaks. Straightforward replacement, 1.5-2 hours labor. Often done alongside engine mounts if those are also worn.
Estimated cost: $350-550
Carbon Buildup on Intake Valves (Direct Injection)
Occasional · medium severityTypical onset: 80,000-120,000 mi
Symptoms: Rough cold starts, engine misfires on cold startup, Reduced fuel economy and power, Check engine light with misfire codes (P0300-P0306), Hesitation during light throttle cruise
Fix: 2GR-FSE is direct-injection only, so intake valves never see fuel wash. Requires walnut blasting or manual scraping. 4-6 hours labor for proper cleaning including intake manifold removal.
Estimated cost: $600-1,000
Water Pump Leakage
Occasional · medium severityTypical onset: 90,000-130,000 mi
Symptoms: Coolant seepage from weep hole or gasket, Sweet coolant smell in cabin or under hood, Gradual coolant loss without visible external leaks, Whining or grinding noise from front of engine
Fix: Typical wear item on the 2GR. Requires serpentine belt removal, sometimes timing cover access. 3-4 hours labor. Always replace thermostat and serpentine belt during this job.
Estimated cost: $650-950
Dashboard Rattle and Creaks
Common · low severityTypical onset: 40,000+ mi
Symptoms: Rattle or creak from passenger side dash or center console, Noise worsens in hot weather or over bumps, Sounds emanate from A/C vents or glovebox area
Fix: Interior trim clips loosen over time. Requires partial dash disassembly to add felt tape or replace clips. 1-2 hours diagnostic and repair labor, but often returns. Common Lexus aging quirk.
Estimated cost: $150-350
Solid luxury sedan if the fuel pump recall is done and you can verify clean transmission fluid history — avoid high-mileage examples without service records showing regular ATF changes.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.