general problems of the 2007 Lexus LS460

The contact owns a 2007 Lexus LS 460. While attempting to accelerate from a stop sign, the vehicle lost power. The accelerator pedal was depressed, but the vehicle failed to accelerate and increase in rpms. The vehicle was taken to a dealer where it was diagnosed that the spark plugs needed to be replaced, the engine control unit needed to be reprogrammed, and the fuel lines needed to be flushed. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 64,000.

The car has a radom delay problem when accelerating to pass a vehicle on the highway can cause a rear end collision that Lexus try to fix by changing the both engine heads completely but it didnot solve the problem entirely. After oil changes the car lags and delays due to valves not sitting correctly (valves are in the heads). Lexus is aware of this problem but has no resolution and do not see it as a safety issue. This is very scary and has been told to Lexus by a number of customers. It is all over online forums and it affects 2007-2009 Lexus Ls460 (all trims) has 5 sec. Delay while trying to pass on occasons.

Parked vehicle, pressed start/stop button to turn off engine. Engine stopped. Exited the vehicle and as walking away pressed the lock button on the key fob. Came back from shopping and the engine was running and fob would not unlock the doors. Put new battery in fob. . . And still wouldn't work. Used spare fob. . . It would not open door. I could not shut off engine. Called aaa they came out, took apart the handle and inserted the fob key to gain access and was able to shut off the engine. Lexus service said computer did not show any malfunction though 3 humans witnessed it. .

Vehicle has loss of power and hesitation during acceleration. Happens when accelerating from a stop or low speeds. It's can be very dangerous issue to have.

Took my vehicle in for a routine 60k service. The only service provided was an oil and filter change, tire rotation and maintenance reminder reset. The issue that has occurred since has been hesitation or poor acceleration from a stop and low speeds.

My car is a 2007 Ls460. I bought it new in Sep 07. It currently has 35,000 miles on it. On several different occasions during my ownership of this car, it has failed to accelerate, in response to the accelerator pedal, at low speeds. This performance issue only lasts a few hundred miles and then the car returns to perfect for an extended period. This can be very dangerous in certain situations. About 18 months ago, I made the correlation that this strange behavior occurs right after an oil change. Since that time I have paid special attention and there is no doubt in my mind that it is related to the oil change. Many other owners have reported this in internet car forums.

After an oil change at the dealer, the car is unable to accelerate, sluggish, and the powertrain acts lethargic, particularly when trying to enter the freeway or merge into traffic. The dealer has performed a software update, however the problem still persists. This only happened after and oil change. Several other Ls460 owners I know complain about the same phenomenon. Lexus has no answer.

I just received a recall notice--"valve spring replacement safety recall notice" from Lexus. I called my dealer and was told the first available appointment for this recall was in one year--Nov. 2011. I feel that if a recall is warranted, I should not have to wait one year to have it done.

I arrived home after dinner, drove my 2007 Lexus Ls460 (equipped with keyless ignition) into my attached garage, closed the garage door and, leaving the key fob inside the vehicle, I entered my home and eventually went to sleep. I was awoken at approx. 2:15am by a carbon monoxide alarm located in the foyer inside my home adjacent to the entrance to the garage. I entered the garage to discover that the cars engine was still running, the garage filled with noxious fumes, and the entire vehicle extremely hot to touch, inside and out. I opened the garage door and was eventually able to shut down the engine and clear out the fumes. As I see it, the failure here was two-fold: (1) when I opened my door to exit the car, no alarm or other sound alerted me that the engine was still running, as is the case with ignitions requiring keys. This is particularly problematic because the cars engine runs in virtual silence; and (2) even after the car was unwittingly left idling while in park, the engine did not cut off after some predetermined period of time. I spoke to my local Lexus dealer, who suggested that I contact Lexus USA directly. At the dealers suggestion, I wrote two letters (9/29 and 10/20/09) to a mr. Mark templin, vice president, in torrance, CA. I received no reply in writing. I did get a call from a different representative of Lexus (mr. Templin, I was told, was unavailable), who informed me that it is impossible for the engine to be kept running under the circumstances I described. At that point, after being told by Lexus that they see no problems with their keyless ignition system, I elected to take another approach and contact NHTSA. Because Lexus told me that the incident could not have happened as I describe it, Lexus has taken no responsibility for this incident which nearly killed me and which could kill others, and offers no solutions or fixes to this problem.