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Fault light indicator came on

this GS300 has 28000 mi. plus, was running fine, plenty of gas left in tank, but the weather turned unusually cold that night. When I started the car that morning, the engine light did not go off and after a few seconds the brake fault indicator lit. The display on the panel indicated VSC malfunction...... I checked the gas cap which was on tight while the engine was off...... the car behaves normally, so I just plan to wait until my 30,000 mi. check up to do anything about it....

Has this ever occurred to anyone and if so, did the lights go out on their own, or did the Lexus dealer have to reset them while telling you he could not find anything wrong with the car.... my car did that once two days after I took delivery and the dealer could not find a reason either..... thanks for your inputs

Reply to
kitzler
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Reply to
aluckyguess

When you reconnect the battery you have to go through a certain routine to clear the indicator (it's in the manual). IIRC you have to put it in park and keep your foot on the brake for a period whilst switching the ignition on. The same problem started to happen on my LS400 and one morning it wouldn't even engage drive properly. I was panicking but it turned out to be a fault in the battery which was giving a low voltage first thing.

Liam

Reply to
Telephoneman

I would not recommend disconnecting the battery to clear the code; that will only turn off the light and wipe out any record of the underlying problem. If it's due to the gas cap, starting/shutting off the engine normally as part of your daily routine for about two weeks usually will turn off the light. If it's still on after two weeks, wouldn't you want the Lexus dealer to have the code still stored in history so they can diagnose it properly? You didn't say what year your GS is, but if it's under 4 years/50K it's still under warranty. Just a thought.

Reply to
greg

This is the Kitzler, thanks all you guys for that info. I believe that the low battery voltage due to the cold was probably the culprit, still the car is a 2006 under warranty and I am due for a 30K check up with the dealer... I have the car serviced by my mechanic at 15 and

25K miles and prefer to have the dealer do the inspection at 20, 30, 40K miles etc.... I'll definitely keep your comments in mind if that problem crops up again......... also will wait a couple of weeks to see if that problem goes away....

on another subject, I switched the driving mode to PWR (Electronic throttle control or ECT button on the console) and the car does perform better, only in the sense it downshifts a lot more......... still I noticed that the accelerator pedal was not as stiff as in the driving mode, allowing me to press down a little more effortlessly.......... gas mileage seemed unchanged, but when the car is cold, driving in the PWR mode requires a lot more driving time before the transmission decides to shift into 6th gear.... if any of you folks have any comments on that, would appreciate hearing from you again........ thanks

/Nick

Reply to
kitzler

I'd be surprised if there was a physical difference in the stiffness of the gas pedal. It may just feel that way as you stay in a lower gear for longer, increasing acceleration. I can't speak for the GS but I leave my LS400 in PWR mode all the time, It just feels like there's less strain on the engine. I guess it depends how you drive but it doesn't seem to make any difference to the gas mileage on my car.

Liam

Reply to
Telephoneman

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