The 2019 LC 500 is a low-production luxury grand tourer with Lexus reliability baked in, but the 2UR-GSE 5.0L V8 and 10-speed automatic have known weak points that show up in spirited driving or track use. Most issues appear in higher-mileage or hard-driven examples.
Transmission Oil Cooler Line Leaks
Occasional · medium severityTypical onset: 40,000-70,000 mi
Symptoms: Transmission fluid puddles under vehicle, usually passenger side, Low fluid warning light or limp mode if severe, Burnt transmission fluid smell after spirited driving
Fix: Replace transmission oil cooler lines and fittings; sometimes the cooler itself if internal corrosion present. 3-4 hours labor due to undertray removal and tight engine bay access.
Estimated cost: $800-1,400
Carbon Buildup on Intake Valves (Direct Injection)
Common · medium severityTypical onset: 60,000-90,000 mi
Symptoms: Rough idle, especially when cold, Hesitation or misfire under light throttle, Reduced fuel economy and power delivery, Check engine light with misfire codes P0300-P0308
Fix: Walnut-blasting intake valves requires intake manifold removal on both banks. 6-8 hours labor for thorough cleaning. This is inherent to the D4-S system design.
Estimated cost: $1,200-2,000
Transmission Mount Failure
Occasional · low severityTypical onset: 50,000-80,000 mi
Symptoms: Clunk when shifting from Park to Drive or Reverse, Vibration through floorboard at idle, Excessive drivetrain movement visible during hard acceleration
Fix: Replace rear transmission mount; 2-3 hours labor with exhaust component removal for access. OEM part recommended as aftermarket mounts often fail prematurely.
Estimated cost: $600-900
Fuel System Carbon Deposits and Filter Clogging
Occasional · medium severityTypical onset: 70,000-100,000 mi
Symptoms: Hard starting after sitting overnight, Stumble or hesitation during acceleration, Fuel pressure fault codes P0087 or P0093, Reduced high-RPM power
Fix: In-tank fuel filter and pump assembly service; sometimes requires fuel injector cleaning or replacement. 4-5 hours labor due to rear subframe/suspension drop for tank access.
Estimated cost: $1,500-2,800
Piston Ring Land Failure (Track/High-RPM Use)
Rare · high severitySymptoms: Excessive oil consumption (1+ quart per 1,000 miles), Blue smoke on deceleration or startup, Loss of compression in one or more cylinders, Catastrophic failure: metallic knocking, loss of power
Fix: Full engine rebuild or short block replacement required. Piston ring lands crack under sustained high-RPM/high-load conditions. 40-60 hours labor for complete rebuild including machine work, or 25-35 hours for short block swap.
Estimated cost: $12,000-22,000
Head Gasket Seepage (Both Banks)
Rare · medium severityTypical onset: 80,000-120,000 mi
Symptoms: Slow coolant loss without visible external leaks, White residue around head gasket mating surfaces, Occasional overheating under heavy load, Coolant smell from engine bay after heat soak
Fix: Head gasket replacement both banks with head resurfacing. 18-24 hours labor; timing components and water pump typically replaced during service.
Estimated cost: $5,500-8,500
Buy one if you want a reliable Japanese exotic that's gorgeous and sounds amazing, but budget for carbon cleaning and avoid high-mileage examples with track history—piston failure is expensive and not predictable.
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.