I was out driving and all of a sudden my check engine light and traction control went on. I checked my traction control button and it is on so I have no clue what's going on. Anyone ever have this problem? I already contacted Lexus and have a checkup on Monday, just want to know if it might be serious or not. Thanks

 

I put one some after market wheels and new tail lights and mine been on ever since, brought it to the dealer and told me it was because i didnt have the wheel censors in the tires and low offset dont know how true that is.....

 

The trac/vsc thing comes on anytime there's a check engine light.

it can be literally anything from "You forgot to tighten your gas cap" to "You need a new engine"

Only way to know is get the codes scanned (dealer under warranty, or most auto parts places scan free if out of warranty)

 

First step is to tighten your gas cap. This accounts for a majority of random CELs.

If it doesn't go away after a bit of driving, I'd take your car to an independent auto shop or an Autozone-type store to get the codes scanned, since this is the only way to know anything about what's causing the issue. Personally I'd recommend just picking up a $30 OBDII scanner off Amazon, I'm sure it'll pay for itself.

 

Last time I had that happen is when the vacuum line fell off the plug on the intake - resulting in lean a/f mixture in both banks.

 

That makes me feel better, at least it could just be something small making it come on. I'll look into my gas cap even though i haven't filled up in over a week. Also would you happen to know how much it might cost to extend warranties with lexus? my 3 year warranty ends this year

 

I have those lights along with the TPMS for over a year. I have no TPMS sensors. So, I know that issue.
The other code was the 02 oxygen sensor. I have not replaced it. Lights are still there.

 

Factory warranty is 4 years or 50k miles, whichever comes first.

There's a few guys online who sell genuine lexus warranties a lot cheaper than most local dealers... Jerry Johnson is who I got mine from (and was the cheapest of the 3 most common guys doing it at the time- him, Toby Rivers, and Troy Dietrich)

Contact info for Jerry:
Jerry Johnson
800-530-5789
Cell 620-664-8844
jerryj@midwestsuperstore.com

you can find info for the other 2 guys pretty easily with a search on their names

 

Hey Guys, I am new to the Thread. I just wanted to say that I had Issues with my Lexus IS250 which has 150 000 Canadian Km. one Day I lost power and the Car would not accelerate . I had to pull over . Turn off the car then turn it back on . A week after the Engine light came on with message check VSC and Traction control light came on as well. I took it to Lexus and they told me Error Was P0420 Bank 1 was the issue and suggested replacing the catalytic converter for $1500. I took it to my local mechanic for full inspection and suggested to replace my Spark Plugs as they are over due then the Oxygen sensor then the Catalytic converter at the very end. first thing i did was change my Spark Plugs with brand new OEM ones . Lexus wanted to charge me $85 per Spark Plug. Lexus Is250 needs 6 spark plugs. So you do the Math. I went on Ebay and Found 6 OEM brand new plugs for $80..................... . my Mechanic had them replaced under 2 hours and guess what........ No more Traction control or engine light for the past 3 weeks. I drive the car daily at least 60 km/day. Now If you have the P0420 error Here is where I recommend.

1. Check your gas tank cover, gas tank neck shield. make sure it is not broken
2. If you always used cheap gas and not premium you might have carbon build up
3. In my case . Spark plugs were not changed since it was initially purchased. Lexus Recommond you change them every 80-100k.
4. Change the O2 Sensor for B1 if you have P0420 error
5. Check for Leaks. I also had a small leak under the Heat Shield.
6. Perform Full car Inspection which cost only around $80 at Canadian Tire or local mechanic.

If none of these option work for you. I would then suggest changing your Catalytic converter .

 

thank you!

 

I have an 01 LX470 and every brake light imaginable is on including the parking brake. Local shop couldn't get their computer to communicate with the car. Brakes work fine........been driving it for 10K now but I'd like to get the issue resolved. Any ideas? I've read something about sensors that are on every wheel and the repair was $$$

 

What does complete check up entails ? They usually do it along with Oil change as well

 

For the 3rd time: GET THE CODE SCANNED. How can you guys start suggesting the fix without knowing what is wrong?

 

My code scan came up empty. Something about a "module" as I recall but the garage had no idea where to start and they couldn't clear the code.

 

How did it come up empty if they couldn't clear the code? If the light is on, there's a code. If you can't read it, my suggestion is to find someone who can.

Jeff