Valley plate leak due to the fact that Toyota/Lexus utilized the improper sealant and used the improper amount, leading to the heat exchanger leaking coolant once the original, inadequate sealant begins to disentegrate. This could cause a condition where the engine could fail and someone could get hurt. Furthermore, all isfs will eventually have a cracked rh manifold on the #8 runner. This can cause a fire hazard in addition to carbon monoxide poisoning.

- Chula Vista, CA, USA

Exhaust header leak, audible ticking sound once warmed up in drive

- Gilbert, AZ, USA

The engine could stall in the middle of driving because of misfire. My Lexus 250 only 40K mileage and always do proper maintenance to the engine every 3000 mile. I do research that Lexus Is 250 cause carbon build up because of the wrong design of the direct injection. Here's the youtube link: Https://www.youtube.com/watch?V=ytquqflawr8. I brought the car to Lexus dealer, they won't admitted, instead they blame me using a wrong fuel. Before I used 91octane shell, then I switch to 91octane chevron. Still has the problem. They should recall for this matter, because it's about safety and the engine could suddenly stall in the middle of driving.

- Palmdale, CA, USA