I have a 2007 3.8L buick allure that has its traction control and abs dash lights on. When the car starts the lights are off, and they turn on about a minute and a half into driving. It started over the summer, but it only occurred occasionally. Now in the colder temps it happens everytime I drive. I have checked the fluid levels and alternator and they seem fine, at this point I'm not sure what the next step is.

It sounds to me you have an intermittent failure of a wheel speed sensor most likely and that is in the wheel bearings, most likely, one of those replaced lately? I bought a napa one once and it would do it 30 seconds usuallyafter driving sometimes instantly when the computer sees the signals drop out or be impossible, it assumes its unreliable and doesnt allow it to use abs or trac for fear of improper operation

you need a code reader that can read c for chassis codes. Mechanics, friends, or 50-150 dollar scan tools prob can

If that'* your approach to diagnosing an abs problem you should take it to a shop.

This sounds like a wheel speed sensor going bad. Your computer will wait a bit to figure it out during each drive cycle. It might start reading differently as the temperature goes up or down as this very slightly changes the clearance between the reluctor and the sensor. If it were just a wire or connector you'd see the lights as soon as you start moving and it would likely have been immediate before the weather got cooler.

I believe the wheel speed sensors on your Allure are built into the hubs.

Depending on mileage (on the car), you might want to replace the front hubs and see if the issue goes away before moving to the rear hubs. Let'* say do this if it has something like 100,000 miles (or more) on it. The front hubs are going to need doing sooner than later anyways and will probably fix your issue.

An alternative would be to get a scanner that can tell you which one is causing the light. This can be done by getting a scanner capable of doing this or getting someone with the right scanner to scan it for you. I'd guess either option in this paragraph will start at $150 and go up from there.

I agree with the others. Sounds like wheel speed sensor. Get a scan tool that can read ABS systems and report back.

Im the "Kill three" response and approach how about you?