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"Check Engine / Trac off" warning lights came on at the same, but the car runs fine.
It is possibly either the "Oxygen Sensors" or "Gas Cap" didn't get tighten enough.
I would take it to an automobile arts place like Autozone they will do the diags usually for free and then you would and have the computer codes to help narrow down the problem.
OS Sensor will run you around $90-$135 just for the part.
It's ok to drive the car; it will not hurt the vehicle.
Goodluck
I do want to add want thing and that is you need to read the code to see what it is. Right, it could be as simple as an O2 sensor (perhaps code ..041) or more complicated (code P0446), a gas cap and/or a charcoal canister replacement.
UPDATE: I had a code P0446. First replaced the gas cap, $30 from Lexus dealer, but did not help. Replaced charcoal/vapor canister ($350 from Toyota dealer using part number written on the canister). Bingo, both CEL AND Trac off went away!. However, replacing the canister took me about 3 hrs as it's located near the gas tank and above the rear axle--what a pain.
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You had the rear struts of your 98 Lexus es300 changed and now the trac off light is blinking and the abs light is on and its not reading on the diagnostic computer?
Bring to a shop that has an ABS scanner
Shut off abs light on Lexus es300?
shut off abs light on 1998 es300
Where is the fuel cut off for a 2003 Lexus?
Where is the fuel cut off switch located in a 2003 Lexus es300
Is there an emergency fuel pump shut-off on a 1994 Lexus ES300 and if so where is it located?
In the trunk
Where is the fuel pump and the fuel cut off switch on a 1993 Lexus ES300?
WERE RESET BOTON LEXUS 300 EX 1996 FUEL PUMP ??
Do you have to disconnect or remove battery to change drivers headlamp on Lexus ES300?
As long as the headlight are turned off, you do not have to disconnect the battery.
How do you turn off the airbag indicator light on the Lexus ES300?
I would unplug the battery. This will reset your clock, etc., but it should turn the light off.
Does a 1999 Lexus ES 300 need to go to the shop for a trac off flashing on dash or is just sensor light?
I had the same issue so I took it to Lexus for repairs. It seems that light comes on everytime there is a fuel issue rather than a traction issue. You could take it to an Advance Auto and have them pull the code from the computer and it will tell you the problem before you take it to Lexus or your favorite automotive shop. I believe the image they should be using instead of the trac off light is a dollar sign! Last time it went off it cost me 700 dollars.
What does trac off mean on 1999 Chrysler Town and Country?
The traction control system is turned off.
Alarm going off in Lexus rx300?
Car alarm in Lexus ES300 started going off at random when car was parked, not running. I changed the key fob battery (flat watch battery) with a new battery and it fixed the problem.
What does the Trac Off light means on a 1999 Toyota Avalon?
It is referring to the wheel traction.
Where are the O2 sensors in a 1994 Lexus es300?
There are two O2 sensors on a '94 Lexus ES300. Both are located on the exhaust manifolds. There is one accessible from the front just to the right off-center of the engine, and one is located on the rear of the engine down low approximately centered with the engine. Hope this helps. WB
