Toyota Highlander
2.5L four-cylinder for Camry XV50 and Highlander. Oil consumption issue from low-tension piston rings — Toyota issued TSB and settled a class action. 2012 models: camshaft gear cold rattle documented via TSB. Water pump with plastic impeller wears out. Overall solid after warranty repairs.
Highlander XU50 four-cylinder — budget option
185 hp four-cylinder, FWD only. For commuters who want a big car but need little power.
Engine Weaknesses 3
TSB 0194-14: Toyota extended warranty. Low-tension piston rings, same root cause as predecessor 2AZ-FE.
Symptoms: Oil level drop between changes, blue smoke possible
Impeller wears, seals degrade. Standard replacement from ~80k miles.
Symptoms: Coolant loss, drip under engine
TSB T-SB-0041-13: brief knocking on cold start. Camshaft gear unit needs replacement. 2012 model year only.
Symptoms: Brief knocking/rattle on cold start, disappears after seconds
Vehicle Weaknesses 3
Under-secured locking plate on pinion. High-pitched whine, metal shavings in pan, power loss. Customer Support Program ZJC: 10 years/unlimited mileage. Class action 2020 for >1M Toyota vehicles.
Same issue as XU40 — heavy SUV puts above-average stress on brakes.
Entune system freezes regularly, Bluetooth dropouts, touchscreen unresponsive. Software updates help partially.
Reports & Tests
1344 owner complaints filed with NHTSA (2014–2019). Most reported: Powertrain (289), Other (253), Electrical (220).