Question about 2002 Buick LeSabre

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The traction control off light and the abs light came on at the same time. It does not seem to affect the driving. Any suggestions?

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You probably have a bad abs sensor on one of your wheels, usually the traction control system will disable its self when the abs system is not working properly. The sensors aren't very expensive to replace (if you have any mechanical knowledge, you could do it yourself easily, they pretty much just screw on and have an electrical clip, you could also check them to see if one came unplugged), and when it's fixed the traction control will reengage its self automatically. It won't affect the driving unless you get yourself into a situation where you need the abs or traction. I would get it fixed sooner than later though. Some insurance companies will check the computers on cars if theres an accident and if your car was 'improperly working' at the time they could pin an accident on you. Drive safe!

Posted on Jan 08, 2011

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Posted on Jan 02, 2017

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Abs light came on


What it looks like: The traction control warning light typically takes the form of the acronym "TC." Sometimes this light is a small illuminated picture of a car losing control What it looks like: The traction control warning light typically takes the form of the acronym "TC." Sometimes this light is a small illuminated picture of a car losing control. How this system works: Traction control uses wheel speed sensors to detect when one or more of the car's wheels lose grip and traction. When the system registers a loss of traction in one or more of the wheels, a computer will limit power to the wheels that are still in solid contact with the road to prevent a skid. Common reasons for this to happen:
  • ABS is malfunctioning: Traction control and ABS (anti-lock braking system) often share the same control module and internal self-diagnostics system. As a result, sometimes an issue in the ABS can trigger the traction control light. If this is the case, then both the ABS and Traction Control lights will be on.
  • Broken wheel speed sensors: Wheel speed sensors are usually in the wheel bearing assembly, and determine the rate at which each wheel is moving. The sensors relay that information to the traction control module, which determines whether or not power needs to be shifted. Wheel speed sensors can get dirty or damaged and stop working, which prohibits the traction control module from knowing when to enable the system.Traction control module is faulty: The traction control module - which, again, is often shared with the ABS - can malfunction and break altogether, causing the system to stop working. What to expect: A top-rated mobile mechanic will come to your home or office to determine the source and cause of the traction control issue, and will then provide a detailed inspection report that includes the scope and cost of the necessary repairs. How important is this service? It's important to have the traction control issue investigated as soon as possible, as adverse driving conditions can arise at any time. While your car is unlikely to incur further damage from a faulty traction control system, it won't be safe to drive in rain, snow, sleet, or other inclement weather, or even possibly through pools of water on the road. Furthermore, the issue that is causing the traction control light to illuminate could also be impacting the ABS.

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1 Answer

Service traction system


Don't mess with the ABS light get it diagnosed and fixed. Your brakes will work with the ABS light on but you will skid because the system will switch to basic hydraulic action with no control of how much to each wheel. If ABS is on then it is not working.

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It is safe to drive. You need a scan tool to get a code out of it. Could be as simple as a wheel speed sensor going bad. All of these lights will work together normally. The traction control uses the ABS to gain traction, and the Brake Assist System is part of the stability control. Also uses the ABS.

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1 Answer

Abs and traction control light remain on.brakes were checked and are fine.any suggestions.


Most likely one of the wheel ABS sensors is defective, it makes the vehicle think that one wheel is turning at a different speed to the others which causes issues for both the ABS and the traction control.

Mar 10, 2012 | 2005 Chevrolet Impala

1 Answer

ABS light is on all the time as well as Traction Control light. Grinding occurs while driving


with traction control set up cars abs and tranction control sensors are in the wheel bearings when a wheel bearing goes out grinding will come from front wheels and will ruin abs and traction control sensors causing the malfunction. Most likely by your description this will be it.

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Abs light on all the time ,occasional brake light ,traction off light on all the time


I would suggest u take ur vehicle in to a reputable dealer this could be a dangerous situatio should u get into an auto accident.

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1 Answer

Service traction system and ABS light


verify all tire pressures are correct this can affect abs traction control on your vehicle

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1 Answer

Traction system light and abs light


Traction control systems measure wheel speed differences by various methods to determine if one wheel is rotating faster than the other. A heavier buildup of ice/snow could be affecting wheel rotation speed causing the TCS to engage. ABS works by sensing slippage at the wheels during braking, and continually adjusting braking pressure to ensure maximum contact between the tires and the road. Suggest clearing out the wheel wells now and periodically throughout the winter. Also remove ice/snow build up between the wheel and the brake pads/rotor.

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1 Answer

2001 olds ABS and traction control sensor issue


An ABS sensor DOES affect the traction control system. Traction control uses these sensors to determine if a wheel is losing traction. A bad sensor will cause both the ABS and TRACTION lights to come on.
The CHECK ENGINE light however is going to be a seperate problem.

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