Check Engine Light On Problems of Lexus IS250

The contact owns a 2014 Lexus Is250. The contact stated that while driving at an undisclosed speed, the vehicle stalled with the check engine warning light illuminated. The vehicle was taken to an independent mechanic and was diagnosed that the fuel pump failed and needed to be replaced. The vehicle was not repaired and was not taken to a dealer for a diagnostic testing. The manufacturer was not made aware of the failure. The failure mileage was approximately 69,000.

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Vsc light, check engine light, traction control light all came on at the same time. Po303 cylinder 3 misfire detected. Have saw online many people complaining of the same problem. Engine is shaky during idle or shaky when its cold. Previous owned a 2009 Lexus Is250 and had the same problem. Heard of some people saying Lexus dealers took cars in and had problem fixed as recall. Not finding any recalls for my car. My mechanic says its a good running car, but something doesn't feel right.

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Check engine, vsc, traction lights comes on as vehicle comes to a stop with a rough idle, and at times exhibits a temporary loss of power intermittently, while the vehicle is mobile/rolling. Lexus sent out a tsib letter to us owners for similar symptoms with possible diagnostic trouble codes(dtc): p0300-p0306. Further, according to Lexus corp. "the check engine light may illuminate for reasons of unrelated condition. " Lexus corporation suspects the cause of problem is carbon deposit accumulation in the intake valves and a replacement of piston ring set and or pistons may be indicated. If this is what's occurring inside the engine and is inherent to Is250 models only ,then it would seem to a reasonable person there is a design and potential safety flaw in these vehicle models. Also, because of this design flaw, my vehicle is now having catalytic failure and a what sounds like a rattle during a cold crank start of the vehicle. However, when a vehicle is taken to a dealer, the Lexus dealers are quick to dismiss the problem by the claims that the symptoms are not replicable enough for them to verify the problem. The temporary loss of power may one day cause the driver to have a serious accident should the steering wheel lockup or should the problem happen during hill ascends, which may cause the vehicle to roll back into traffic or off the main road. Why is Lexus corporation not making this issue a safety recall, and rather, just treating it as a concern nature. I would beseech the traffic safety board to please look into this matter as to avoid any injury or worse, a loss of innocent life. This is my first Lexus vehicle and it has become a very disappointing experience.

As I was attempting to accelerate, the vsc light and check engine light came on, the car lost power, would not accelerate, and the engine started misfiring.

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I entered the highway as I usually do on my way to work and had made my way to the left lane. I am in rush hour traffic when all of a sudden my car started to loose compression, it started to slow down to about 25 miles (while on a main highway) and a check engine light came on and the vcs notification started flashing. I immediately made my way to the shoulder on the right side of the highway to look-up the code and all it said was to take to the Lexus dealer immediately, which is what I did. After about four hours of waiting, the Lexus dealer determined that my 2006 Lexus needed: valve springs, valve lash adjuster, updated pistons and rings and possibly a short block. Yes the engine was bad.

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At approximately 40,000 mi. My 2007 Lexus is 250 developed a problem of stalling, shaking, misfiring and the vsc light, traction skid light and check engine lights all come on. The dealership initially tried to tell me that the gas cap was not on tight (not true) and then they tried to tell me that just turning the lights off would fix the problem (also not true). After I insisted that the problem was serious and dangerous, the technician drove the car home and had the same problem that I had been experiencing. Finally, the dealership decided that carbon had built up on the valves and that was causing the engine to misfire and all the lights to come on. The dealership sent the valves to a shop and had them cleaned and ground down. The service manager told me that there was a design flaw and this is what Lexus told them to do to fix it. Now, here I am at 81,000 miles and the same thing happened again yesterday with the car shaking, stalling, misfiring and the vsc light, traction skid light and check engine lights coming on. It has been another 40,000 miles and the carbon has built up again. I have read on the internet that many other people have had the same problem.

I own a 2006 Lexus Is250 and there is a problem that I cannot see to handle nor the dealer can handle. The problem with the car is that when I'm going over 60 to 65 mph the check engine light blinks and the vsc light comes on. The car does not accelerate and just the rpm would go up. I took the car in to the dealer with extended warranty in hand on 4 now 5 different occasions and everytime I'm hearing different stories. Here is the list. * may 22, 2009: 60,000 mile service done. * sept 6, 2009: took the car in for "check vsc & check engine". Next day they told me nothing was wrong with the car. * oct 10, 2009: towed car to dealership. "check vsc & check engine" light came on again. Pulled over on the highway 3 times to reset but the lights did not go away. Pulled over twice earlier that day, twice the day before also. * oct 14, 2009: (Lexus told you that the issues were resolved by swapping the engine coils the day or two before. No charges. ) I requested an emissions test before I came to pick it up. Lexus called back and told me that the engine light came back on again during the emissions test. Still looking for the problem. * oct 18, 2009: Lexus called, told me that the problem with the engine is because of the carbon buildup. They were going to cover the valve springs but I would have to pay for the cleanup which is $ 960. Not covered by ext. Warranty. 2 other dealers told me that the carbon buildup cleanup was an injunction service and it is supposed to only cost 190 dollars. The funny thing is that the dealer wrote the problem is caused by "carbon buildup cleanup?" with a question mark. Took the car and had the injunction service done. I took the car to another Lexus dealer and they told me that while the other dealer was doing the coil swap they cracked the cover for it and now gas was leaking. Had to get it fixed and also did the carbon buildup cleanup (injunction service). Feb 2010 same problem occurred.

Car started to run rough, slowed down, check engine light and sbs light came on (ithought it was an oxygen sensor). Book says to take to dealer immediately. I took it in, they did a check, told me it was a 'loose gas cap'. A month later - same thing happened. I took it back, they kept the car for two weeks - told me the valve springs were not the correct length and had to be replaced.