2001 chevy cavalier trac light

One year ago---your check engine light came on
The PO405 code was for an EGR Valve issue
No mention--- if you had that fixed

A Few Days Ago---you get Trac Light on,that is part of
the ABS Braking System
Now that system has to be diagnosed & repaired,not just
continue to use the car,actually make the repair, before
you do some damage or can't stop the car & worse things happen

Changing Trans Fluid---is NOT a FIX for anything,but should
be done on all vehicles every 3 years.

If the Engine Management System isn't working correctly,then
your trans won't work as it should either

You need to be proactive & immediately have any abnormal
operation or check light problems, at least diagnosed in a few days
of noticing them

You need to stop using any car that isn't 100% & have it
repaired as soon as possible.

Not wait weeks or years.
Being 9 years old, the trans may also have it's own issues

Go to your nearest Auto Zone store and have them put their computer on your vehicle, to see what code comes up (IT FREE). They should let you know what the problem it...if not....let me know what the code is and I will let you know what is wrong..Hope this helps you ??

It is not anything with the transmission itself. it is your throttle position sensor, sometimes after driving at a steady speed and then coasting it loses its mind a little. You get the trac light and then it wont shift properly unless you shut the car off and restart it then everything is ok because the computer resets. It is fairly easy to replace.

First try a service oil change in the tranny with filter and see what happens.

It's the Coolant. I have the same car, same year and had the same indicator light come on - it was my Coolant.

i believe theres a small button on your shifter to push for trac off and on, there was on my 98 anyways...

Replace the TPS (Throttle Position Sensor). $30 to $40 if you do it yourself or $70 to $95 if you have a service station do it. This will fix all of your problems related to the TRAC OFF light and transmission shifting into low gear.

did you get anyone to check the codes?
the trac off light will come on if the ignition module goes the module sits on top of the engine it has silver fins and is held in with 3 torx screws. it sells for about $100 so you might want to have someone diagnose this hope this helps

Replace the TPS (Throttle Position Sensor). $30 to $40 if you do it yourself or $70 to $95 if you have a service station do it. This will fix all of your problems related to the TRAC OFF light and transmission shifting into low gear.

Sometimes it's a complaint with the ABS braking system. If it comes on and you have no other problems and stays on for while, check your brakes. I have had this issue before and had my brakes replaced. They were worn but for some reason were not squeaking.