I have a 2001 Oldsmobile Alero. What does it mean when the anti brake light, service engine soon, and traction off light comes on at the same time?

There isn't such a code. Plus the engine light won't come on for the ABS/traction system.

if your car has an automatic trassmision , the problem is the clutcht not the ABS

Only the computer can clear history codes . If the problem was fixed in about 100 ignition cycles the computer will clear this codes . Code reader . will it check Codes in the EBCM - electronic brake control module ? ABS DTC'S

well for one the traction and antilock lights are the same sensor. If the anitlock brake sensor goes bad and cannot count your wheel rotations then your traction control system will not work either. AS for the service engine soon light that could be part of this system also or it could be totally different you wont know until you get your code read

You will need to have it scanned for codes.

the anti-lock and traction lights will come on together if there is a common problem with the two, since they are closely related. may be a wheel speed sensor or something similar. the service engine soon light indicates a problem with the engine computer, can be anything from an emission system problem or an engine performance problem. all of these lights can come on with no apparent running problems on the car. the service vehicle soon light is basically a maintenance reminder, an oil change light. take the car into a shop and have the codes read for these lights.

There could be a hundred causes for a check engine light. First step is to hook up a computer scan tool and see what codes the computer has. The next step depends on the codes.

you most likely have an ABS problem you will need to have it scanned to get the code

The ABS and traction control are ususally one in the same and will require a mechanic with special tools to diagnose. You can check to make sure the brake pads are not worn out (it is about time to replace them on this year car) that the wheel sensor wires are in one piece and amke sure the brake fluid is changed (This needs to be done every 24,000 miles on any car). As for the Check Engine light, you'll need a scanner to pull the code, but check the gas cap as this is the most usual culprit. We have a 2004 Grand Am (very similar to the Alero, but without the traction or ABS) and the only time the Engine light came on was when the cap was loose.

Anti-Lock and Trac Off lights are lit on my 1999 Alero, as well. They usually come on after about 5 minutes of driving, but are not always on when I start the car.