While driving home in the freeway, I felt my car shake then a sudden loss of power. Then my CEL started blinking and my VSC lit. Got a code for engine misfire(P0302). Is250 has a lot of cases on engine misfires because of excessive carbon build up because of how the engine is designed. My car only has 108,000miles. Lexus released a Customer Support Program for this problem but it already expired. They only gave 9 years from date of purchase for it to be eligible for the free fix. It means they are aware of the problem but my 2010 car just missed that window but I am having the same problem many IS250 owners have. It is really unsafe when you-??re driving in the freeway then it suddenly loses power. Hopefully this problem gets resolved by Lexus soon.

- Ewa Beach, HI, USA

Isfs year models 2008-2014 are affected the 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 disintegrate. 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.

- Las Vegas, NV, USA

Known by Lexus as a common failure in the 2ur engine Is the valley plate coolant leak. This Is a failure that the majority of owners in the forums have reported as well as my personal vehicle experiencing. Can happen as few as 50K miles. Common cost for repair to the owner Is between $2000 and $3000. Mine has happened even after meticulous maintenance.

- Las Vegas, NV, USA

The contact owns a 2010 Lexus IS350. The contact stated that upon starting the ignition, an abnormal knocking noise was heard from outside the vehicle. The failure recurred twice. The vehicle was not taken for diagnosis or repairs. The contact later received notification of NHTSA campaign id number 13V395000 (engine). The contact was not able to have the vehicle serviced under the recall until January 2013 because of a massive waiting list. The manufacturer was notified of the problem. The approximate failure mileage was 42,000.

- Clinton, NY, USA