The 2021 Camry is generally rock-solid, but the 2.5L four-cylinder has a documented oil consumption defect affecting certain VINs that can grenade the engine if ignored. Hybrid variants are more reliable; the V6 is bulletproof but rare.
2.5L I4 Excessive Oil Consumption / Piston Ring Failure
Occasional · high severityTypical onset: 30,000-80,000 mi
Symptoms: Low oil light between changes, sometimes burning a quart every 1,000-2,000 miles, Blue smoke on cold start or under acceleration, Rattling or knocking if oil starvation damages rod bearings, Check engine light for lean codes or misfire
Fix: TSB covers oil consumption test; if it fails, Toyota may cover under powertrain warranty (verify VIN eligibility). Out-of-warranty requires piston ring replacement (16-20 hours) or short block swap (20-24 hours). Some engines are too far gone and need full rebuilds.
Estimated cost: $4,500-8,500
Transmission Oil Cooler Line Leaks (8-speed automatic)
Occasional · medium severityTypical onset: 50,000-90,000 mi
Symptoms: ATF puddles under front of vehicle, passenger side, Transmission overheating warnings on dash, Burnt transmission fluid smell, Harsh shifting or slipping if fluid level drops significantly
Fix: Cooler lines corrode at crimp fittings or where they pass through subframe. Replace both lines and top off fluid; 2-3 hours labor. Inspect radiator-mounted cooler for cross-contamination if coolant is milky.
Estimated cost: $400-700
Torque Rod Engine Mount Failure (2.5L models)
Common · low severityTypical onset: 60,000-100,000 mi
Symptoms: Clunking on acceleration or deceleration, especially from a stop, Excessive engine rock visible when shifting into gear, Vibration through steering wheel at idle, Rubber mount visibly torn or oil-soaked
Fix: Lower torque rod mount separates or tears. Replace mount and inspect transmission mount at same time (often fails together). 1.5-2 hours labor for one mount, 3 hours for both.
Estimated cost: $300-600
Fuel Injector Carbon Buildup (Direct Injection 2.5L)
Occasional · medium severityTypical onset: 80,000-120,000 mi
Symptoms: Rough idle, especially when cold, Hesitation or stumble on light throttle, Misfires on one or more cylinders (codes P0300-P0304), Reduced fuel economy
Fix: Direct injection engines build intake valve carbon over time. Walnut blasting intake valves is preventive; if injectors are clogged, R&R and ultrasonic clean or replace. 4-6 hours for valve cleaning, 6-8 hours if injectors need service.
Estimated cost: $600-1,200
Occupant Classification Sensor Fault (Airbag System)
Rare · medium severitySymptoms: Airbag warning light illuminated, Passenger airbag OFF light stays on with adult in seat, Intermittent airbag light during driving, Recall notice received in mail
Fix: NHTSA recall for occupant sensor calibration issue; dealer reflash is free. If out of recall scope, sensor mat in passenger seat may need replacement (1.5-2 hours to remove seat, swap mat, recalibrate).
Estimated cost: $0 (recall) or $400-700
Hybrid Inverter Coolant Pump Failure (Hybrid only)
Rare · high severityTypical onset: 100,000-150,000 mi
Symptoms: Hybrid system warning light and turtle mode (reduced power), Whining or grinding noise from under hood, driver side, Inverter overheating codes (P0A93, P0A94), Coolant loss with no visible external leak
Fix: Electric coolant pump for hybrid inverter fails; causes inverter overheat and shutdown. Replace pump and flush hybrid coolant system. 3-4 hours labor. Must use Toyota hybrid coolant.
Estimated cost: $800-1,400
Buy the 2.5L hybrid or V6 without hesitation; avoid early 2021 four-cylinders unless oil consumption test has been documented clean or engine already replaced under warranty.
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.