bentleymp2

Just took a short drive and the light was on the entire time.
Only 395 miles on the gs!
I don't have any other details as this just happened.
I just wanted to vent and ask if anyone knows what this is likely to be about.


Should I be worried?
I mean the car is brand new. I'm laughing about how rediculous it is but I'm crying inside. but

GSTONY

Have no clue but just take it too lexus they fix it for you no question ask

onexcite

Check the gas cap. If gas cap loose tight check engine light will on. Once it on, dealer need Techstream to reset.

jj14

Actually, if it is the gas cap, the check engine light 'should' reset by itself once the cap is put back properly (after a few minutes of driving)

Allb18c

iTrader: (1)

Yes - If if isn't the gas cap then a trip back to the dealer is a must. Be sure to ask what the error was so you know what the cause was.

kyo7878

I bet its related to gas cap.

bentleymp2

I checked the gas cap and it did seen to be loose. After tightening it, I started the engine and the light was still on. I have not driven it yet. Will drive it later tonight and see if the light goes off.

I hope it was just the gas cap!
Thank you all!

onexcite

Even after tighten the gas cap, a Techstream need to reset the light thus a trip to dealer. I drove out a tank of gas and the light still on. Had happened on 2 Lexus before.

bentleymp2

Well in that case, I'll be driving around with the light on until Monday. I hope it was just the gas cap so I don't ruin anything.

jj14

From page 608 at http://drivers.lexus.com/t3Portal/do.../sec_06-02.pdf

"When the malfunction indicator lamp still remains on after several driving trips"
-> The error code in the OBD system will not be cleared unless the vehicle is driven 40 or more times."

bentleymp2

Very good to know! Thank you for that.

bradtopp

I'm confused. How did you "tighten" it? There are very clear instructions on the gas cap. Remove it, and put it back on according to the instructions. The light will turn off after a little while (it does not take 40 times). I know this because it happened to us on my wife's GS after she got her first tank of gas.

dseag2

Maybe it was a typo and they meant "40 or more miles". 40 or more times seems ridiculous.

TitanFan

I had the same thing happen to me. The dealer told me to check my gas cap which I did. Then he told me once I do that drive the car for about 10 miles and the light should turn off. Well it didn't and I took the car back to the dealer and they told me that is was an o2 sensor in the tailpipe. Which they replaced no questions asked. Hope this helps.

dseag2

I believe it can also happen from putting too low grade of fuel in the car. It happened to me with an Infiniti FX I used to own. That, and engine knock, will occur. Never again.