GS - 3rd Gen (2006-2011) Discussion about the 2006+ model GS300, GS350, GS430, GS450H and GS460

Problems - (Check Engine light + loss of power)

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Old 07-16-19, 11:16 PM
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designo
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This happened to me twice, both times it as a bad battery
Old 01-19-24, 09:44 AM
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malignancy
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Originally Posted by designo
This happened to me twice, both times it as a bad battery
mine has done this twice now. Car only has 36,000 miles. First time, shutdown/restart cleared it. Second time, restart took it out of limp mode but CEL still lit (solid now vs flashing).
Car battery appears strong, starts without any struggle, even when turning on heated seats (with engine off) for 15 mins.

Any ideas? I’ll get it scanned shortly.

I should add that I just bought this car and changed the oil and transmission fluid (pretty sure I did the tranny right) and the first time it happened was about 300 miles after servicing the oil and tranny.

Last edited by malignancy; 01-19-24 at 09:52 AM.
Old 01-19-24, 01:29 PM
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malignancy
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Originally Posted by malignancy
mine has done this twice now. Car only has 36,000 miles. First time, shutdown/restart cleared it. Second time, restart took it out of limp mode but CEL still lit (solid now vs flashing).
Car battery appears strong, starts without any struggle, even when turning on heated seats (with engine off) for 15 mins.

Any ideas? I’ll get it scanned shortly.

I should add that I just bought this car and changed the oil and transmission fluid (pretty sure I did the tranny right) and the first time it happened was about 300 miles after servicing the oil and tranny.
is this kind of misfiring normal for a car that got such a low mileage? It’s 2015 IS250, 36,000 miles.

Old 09-14-24, 06:35 AM
  #19  
Dclackjr03
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Default Did you have codes read and if so what did it come back too?

Did you ever get the codes read?
Old 09-16-24, 07:49 PM
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AVertreese
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[QUOTE=malignancy;11653247]is this kind of misfiring normal for a car that got such a low mileage? It’s 2015 IS250, 36,000 miles.

Hello did you get this figured out my 07 gs350 is giving me the same codes
Old 09-17-24, 04:33 AM
  #21  
Bserch
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Originally Posted by Milone
The car I have is a 2009 GS350 with 180,000 miles on it.

I was driving about 75 and went to pass a car. While passing, the car hit what felt like a power surge and dropped down to 60 mph and continued decreasing. The check engine light started blinking and the traction control came on.

I switched the lever over to the sport or "S" mode to see what gear I was in, and found myself in 4th running about 4,000 rpms. Pedal was to the floor and it was struggling to go any faster and kept declining speed, only speeding up slightly as I started to gain speed coasting downhill in addition to the engine being pinned.

I'm aware that anytime the check engine light comes on, that the trac control light automatically comes on with it as well.

Not very mechanically savvy, so I'm trying to get an idea of what to expect as potential problems before going to a mechanic shop and getting reamed out of the ***.

Thanks for the help!
I have a 2009 lexus gs 350 as well I'm working on now i decided to buy a scanner and do it my self that flashing check engine light I think is a warning so it best to scan it
Old 09-17-24, 05:36 AM
  #22  
ibidu1
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Originally Posted by Bserch
I have a 2009 lexus gs 350 as well I'm working on now i decided to buy a scanner and do it my self that flashing check engine light I think is a warning so it best to scan it
Check engine is bad! But a flashing check engine means something is really bad. I suggest you take the car to a specialist, let them figure it out properly.
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