MikeM

GS4 with 170,000 miles. About a month ago all three lights VCS ABS VCS off come on shortly after starting the car. This combination of lights is not in the owner's manual. They stay on while driving. I turn off the car and restart and they do not come back on. Happens about every two weeks. Brake job done after the problem started but did not cure it. Brakes and vsc work fine. Any ideas?

Thanks for the help.

NBart

Looks like you two might be having the same problems.

https://www.clublexus.com/forums/sho...d.php?t=316946

VNN326

iTrader: (21)

i concur. im having the same problem, im going to check it out soon. and ill post up my results.

MikeM

There may be a connection with the AC. My problem has not recurred since the temperature dropped. I'll watch and post if I can find a connection.

magnetik

iTrader: (1)

that could be anything.. that happened when my master brake cylinder started going out. does it throw a cel?

michael200

Hopefully you can get a CEL code. I had a similar problem recently after removing and cleaning my throttle body, GS400. VCS and VCS off lights both came on. Problem was a loose connector on one of the sensors on one of the cam covers. Try to get a CEL code, that will pin-point what is going wrong.

313vip

iTrader: (6)

anyone know why the lights come on it just happened to me today, but when i turn the car off and turn it back on, i'll drive it for a little bit then it'll come on again...please help

d3fc0N_21

That just recently happened to me on my 00' GS4 and in my case it was the alternator that was going bad to the inevitable of my car shutting down at a stop. After replacement of the alternator under the Lexus extended warranty, it's back to being normal.

Good luck.

VNN326

iTrader: (21)

did you have any sign's that pointed to the alternator ? or just those 3 lights? (VSC ABS VSC OFF)

magnetik

iTrader: (1)

it also happened when my P/S pump leaked fluid into my alternator.. which in turned took it out too.

those lights don't neccessarily mean it has to do with ABS/VSC etc.. it happens when the alternator isn't charging too. I would get your battery tested because it might die soon if you car is running off battery.

jriggs

mine did the same thing a while ago, my connections to the battery was loose, i had to replace them 15 bucks at auto zone and 10 minutes later problem went away and has never came back

kit cat

iTrader: (6)

theres no way to help you with just this, at least write which light it is.

-get a code reading
-search
-if still not sure, list the details as to what might be wrong (CEL codenumber and what it is would help).

d3fc0N_21

You can go to an Autozone (not sure if Kragen has this service available) and ask them to pull the Error code from your vehicle than call the dealer to translate the code. From there you can decide whether to get reemed by the dealer or take it to a local mechanic that will perform the job for a 6-pack of Corona

d3fc0N_21

Off-topic ... is it true that mechanics/service managers at dealerships work strictly commission and that's the reason why if you go in for a simple oil change all of the sudden becomes an engine overhaul?

go4dabukz

you probably didn't tighten your gas cap properly last time you filled up. A loose gas cap(gotta turn it until it clicks three times) will always cause these lights.

1) Turn off the car
2) tighten the cap
3) start the car

4) no lights!