The 2022 ES 250 AWD uses Toyota's A25A-FKS 2.5L Dynamic Force engine paired with an 8-speed automatic. Being only 2-3 years old, most units are still under warranty, but the A25A has shown disturbing oil consumption and low-speed pre-ignition (LSPI) issues across the Toyota/Lexus lineup that can grenade engines prematurely.
Excessive Oil Consumption / Piston Ring Failure
Occasional · high severityTypical onset: 15,000-60,000 mi
Symptoms: Low oil warnings between changes, consuming 1qt per 1,000-2,000 miles, Blue smoke on cold start or under load, Carbon fouling on spark plugs, Check engine light for misfires (P0300-P0304)
Fix: Toyota has issued TSB for oil consumption testing. If confirmed excessive, warranty covers piston ring replacement or short block. Out-of-warranty requires complete engine disassembly, deck resurfacing, new pistons and rings. 18-24 labor hours for in-chassis rebuild, 14-18 hours for short block swap.
Estimated cost: $6,500-9,500
Low-Speed Pre-Ignition (LSPI) Engine Damage
Rare · high severityTypical onset: 10,000-50,000 mi
Symptoms: Sudden catastrophic knocking sound under light acceleration (1,500-2,500 RPM), Loss of power, metallic rattling from engine, Check engine light with knock sensor codes, Metal shavings in oil, scored cylinder walls on inspection
Fix: Direct-injection engines are prone to LSPI when carbon particles cause uncontrolled detonation. Destroys pistons, rings, and cylinder walls instantly. Requires complete engine rebuild with all new internals or long block replacement. 20-26 labor hours depending on AWD component removal complexity.
Estimated cost: $8,500-13,000
Transmission Oil Cooler Line Leaks
Occasional · medium severityTypical onset: 30,000-70,000 mi
Symptoms: Pink/red fluid spots under vehicle near front wheels, Transmission temperature warning light, Burnt smell from transmission area, Low transmission fluid on dipstick
Fix: 8-speed uses external cooler lines that corrode at fittings or crack from vibration. Requires replacement of cooler lines and sometimes the cooler itself. Flush entire system to remove contaminants. 2.5-3.5 labor hours plus fluid and parts.
Estimated cost: $650-1,200
AWD Transfer Case Actuator Failure
Rare · medium severityTypical onset: 40,000-80,000 mi
Symptoms: AWD warning light on dash, Grinding or clicking from rear drivetrain during engagement, Loss of AWD function, stuck in FWD mode, Codes C1553 or C1554 for transfer case actuator circuit
Fix: Electronic actuator motor that engages rear differential fails, often from corrosion on connector or internal motor brushes. Replacement requires dropping exhaust and driveshaft for access. 3-4 labor hours.
Estimated cost: $850-1,400
Fuel Injector Carbon Buildup / Misfires
Common · low severityTypical onset: 40,000-90,000 mi
Symptoms: Rough idle, hesitation on acceleration, Check engine light for random/multiple misfires, Poor fuel economy (3-5 MPG drop), Failed emissions testing
Fix: Direct injection causes intake valve and injector tip carbon accumulation. Requires walnut blasting intake valves and injector cleaning service or replacement. Top-tier fuel helps but doesn't eliminate. 4-6 labor hours for complete intake service.
Estimated cost: $600-1,100
Transmission Mount Premature Deterioration
Occasional · low severityTypical onset: 50,000-90,000 mi
Symptoms: Clunk when shifting from Park to Drive/Reverse, Excessive vibration at idle in Drive, Visible engine movement when revving in Park, Thump felt through floorboard on acceleration
Fix: Hydraulic transmission mount degrades faster than previous generations, possibly due to AWD torque delivery. Simple replacement, but requires supporting transmission and engine. 1.5-2 labor hours.
Estimated cost: $350-550
Wait another 2-3 years to see if the A25A engine proves durable long-term; current data shows too many catastrophic failures for a 'reliable Lexus' at this price point—buy extended warranty or pass.
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.