GS300 - Accelerating on its own
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Driver School Candidate
Joined: Jan 2015
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From: UK
GS300 - Accelerating on its own
Hi guys,
New to this forum and to owning a Lexus
. I recently bought an '06 model GS300 and have just had an issue appear with it that I wondered if I could consult your wisdom on...
Issue is that, whether in drive or reverse, the car accelerates on its own - not very quickly, but quickly enough that it'll crash me into my garage door if I'm not careful.
Does anyone know what this could be? Variously, I've read that it could be a Throttle Positioning Sensor, or Idle Air Control valve. Some things I've read suggest it could be air conditioning related (though I don't understand that one...).
Any answers hugely appreciated.
New to this forum and to owning a Lexus
. I recently bought an '06 model GS300 and have just had an issue appear with it that I wondered if I could consult your wisdom on...Issue is that, whether in drive or reverse, the car accelerates on its own - not very quickly, but quickly enough that it'll crash me into my garage door if I'm not careful.
Does anyone know what this could be? Variously, I've read that it could be a Throttle Positioning Sensor, or Idle Air Control valve. Some things I've read suggest it could be air conditioning related (though I don't understand that one...).
Any answers hugely appreciated.
Es350 IS250/350 my friends 95 ls400 my other friends 2006 es330, rx350 2009-2014. I mean every lexus I ever drove, some are more noticeable then others like gs350, and some are less like rx350.
Agree. I have owned 2 and both had this behavior. Its something you get accustomed to.
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Pole Position
Joined: Oct 2009
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From: Toronto
Pole Position
Joined: Jan 2015
Posts: 289
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From: Oklahoma
exactly. Most every car I can remember idled fast at warm-up and would "lurch" when you removed your foot from the brake. I'm very new to a 09' GS and noticed right away that it's more pronounced in this vehicle than in any other I've had...but again...only when it's cold. Since it's winter and fairly cold in my garage...i've been letting it warm up for about 5 mins or so before driving anyways.
Pretty much every car I've owned has done this, so I wouldn't be too concerned. Just keep your foot on that brake pedal 
You guys are all delusional. Lexus is perfectly normal like any other car on this subject. Maybe you guys need to learn how to drive. All cars idle faster when cold. I remember the days of carburetors. Back then you could hit thirty without touching the gas when the car was cold.