The engine constantly rattled/shudders violently upon initial start for about 20-30 seconds, and check engine light is on. Driving, acceleration, and fuel economy has decreased/worsened. A mechanic in santa monica stated that the obd readings show random engine's cylinders misfires; and a three-day physical observation after the intake manifold removal shows: Unexplained coolant oil contamination issues, oil mixed with coolant at expansion tank, raw fuel on cylinders, fuel blow by, and repeated spark plugs burning after each replacement. And due to the high cost of forecasted repairs and parts replacement, the technicians recommended replacing the whole engine unit. We're extremely disappointed, Lexus!

- Los Angeles, CA, USA

The steering wheel gets stiff, locks eventually and the car goes dead within couple of minutes while driving. Upon 1st diagnosis dealer reported that it was due to bad battery and they replaced the battery. But the same problem has repeated 3 times now within a span of 2 months. Dealer is not able to diagnose the problem whereas the same issue occurs every time. This is life threatening as the steering wheel locks while driving. I have been stranded in the middle of a street and major cross junctions.

- Irvine, CA, USA

Excessive oil consumption. Before the scheduled oil change at 40,000 miles, I checked the oil level and found no oil on the dipstick.

- Sylmar, CA, USA

Starting cold. Foot on brake. Push start button. Dash stuff lights up but car does not start. Take foot off brake and depress gas pedal. Car starts. It will stall if left to run with foot off gas pedal.easy to restart by depressing gas pedal and no foot on brake. Does this consistently. Took car to dealer and they changed the oil because they could not duplicate the problem.

- Taylors, SC, USA