Engine Check light is on and TRAC light is on? what is the issue? How to fix?

use a codereader to get to the bottom of this~ CEL usually means 02 sensor to start with, but certainly could be some or other system playin' hell-

you can live without traction control or clobbering the catalytic converter for a while....then comes the $$$- so change the 02, find out what components are responsbile for traction control and find out what the computer wants to say to us.

X2 on getting the codes read to find out what has failed. Clear that CEL and the TRAC light thing might clear too.

thank you bob nueske i appreciate it Sue

thank you too tenspeed! appreciate the help Sue

A 2012. How many miles do you have, reason for asking vehicle is not under warranty?

18,300 miles

It should be under warranty i would take it to the dealer and have it foxed for free

thank you kbro! I appreciate it Sue

i have a 2015 tacoma 4x4. the check engine and trac off came on while driving. After trying to fix through gas cap, etc took to dealership (warranty) it turned out to be oil regulator. They said I could still drive it and it won't hurt the engine. they replaced the regulator

Tacoma 2015, trac light and SEL came on out of nowhere, truck is 30,000 miles pretty new. Googled it seems the rubber seal on the gas cap is faulty, disconnecting the battery for 2 minutes removes the lights, save a trip to the dealership.

I have a 2009 Toyota Tacoma and the check engine and traction are on and tells me it o2 sensor bank 1 sensor 1 but changer that and it still on

Similar problem: https://www.tacomaworld.com/threads/p0137-o2-sensor.452830/#post- 13345425 Problem was heater relay!

Disconnected the battery for few minutes. Put it back again, trac off and engine lights are gone.

Does anyone experience difficult shifting the auto trans when the lights come on? I've had this happen a couple of times, it goes away when I add gas and/or tighten the gas cap, but it is annoying!

Have a 2016 tacoma engine light and tra sensor is on truck drives terrible shift twice with jerking motion poor throttle response