Question about 2006 Chevrolet Impala
You do the same as with ANY light you get on the dash
of ANY vehicle made in the last 30 years
You check for codes & diagnose & repair code related issues first
For most people ,that will be done at a local repair shop
The traction light issue is part of the ABS Braking System
& thus the reduced power which on some vehicles cuts out
the injectors when the rear brake get slammed on etc
All MFG have different ways the systems work
Got to get it fixed in few days,because it is the
electrical part of your braking system
Posted on May 26, 2011
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Posted on Jan 02, 2017
If your lucky, your car is still under warranty. If your warranty is over, you can go to Auto Zone and have the car scanned for the DTC codes. The DTC codes will inform you the issues that need to be addressed so you can have your car running 100% again. Note: Auto Zone scan free of charge and can give you the step by step instruction to address the issues free of charge and if there are any parts that need to be replace, there parts price are reasonable and most of the time are life time replacements. Good luck and keep me posted, be glad to help you get your car running 100% again soon
Posted on Oct 19, 2009
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When your traction light comes on it is indicating wheel spin on acceleration. To prevent wheel spin an onboard computer reduces engine power to limit the wheel spin. Some, if not most, cars equipped with this feature will also apply the brakes if wheel spin continues after reducing engine power.
Hope this answers your question.
Thank you for using Fixya!
Posted on Nov 19, 2009
there is a defective component in the system, almost for certain that is one of the four wheel speed sensors, have the system tested by any GM dealer to determine which one, or buy one new sensor and move it from wheel to wheel until the light goes out.
Posted on Feb 25, 2010
po455 is Probable Cause[s]
1. Defective, loose or missing fuel cap
2. EVAP canister broke, hose cracked or not connected
3. Purge or vent solenoid defective
4 . Vacuum leak at engine po121 code po121 means Throttle Position Sensor/Switch A Circuit Range/Performance Problem . it is usually indicative of a faulty throttle position sensor or faulty wiring harness in the engine bay.
Posted on Feb 27, 2010
SOURCE: reduced engine power on
The traction control uses the speed sensor in the transmission and the wheel speed sensors to determine wheel spin. If a wheel spins braking is applied to it so that the power can be transferred to the other wheels. At some point the ECU detected a gross disagreement between the sensors and so as a precaution has entered into a limp home mode. On some systems if the fault is in error it can be cleared by putting the car into drive and moving forward a meter, putting in reverse and going a back a meter and doing this three times. If one or other of the sensors are faulty this process will not allow the error to be cleared. You need to check or have checked the error codes and the speed sensors.
Posted on May 28, 2010
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