2005 Pontiac Grand Prix Traction Control Problem

abs problems will effect ves-- tcs --cruise control -braking system check and test fuses relays wiring sensor and hubs

That means there is a problem with the ABS , has DTC'S - diagnostic trouble codes in the EBCM - electronic brake control module . You need to have diagnostics run on it !
Traction Control/ Stabilitrak Off: Refer to ABS Description and Operation in Antilock Brake Systems
This vehicle is equipped with the BOSCH 5.3 antilock braking system.
The vehicle is equipped with the following braking systems:
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Antilock Brake System (ABS)

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Dynamic Rear Proportioning (DRP)

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Traction Control System (ETS) (w/NW7)

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Traction Control System (TCS) (w/NW9)

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Vehicle stability enhancement system (VSES)

No different than the last vehicle problem you had

Need to check for codes & diagnose the system with
the fault & find a problem & make the repairs

Trac Control is part of the ABS Braking System & may need professional tools, to get that modules codes,so save your time for free checking at the parts store, to be told nothing of value there

jack up the four points of the vehicle one at a time shake the tire up to down and left to right, you have bad hub assemblies which tells you your ABS IS BAD take it from there and see what lights disappear, keep me posted and we will go from there.

Most likely a wheel sensor has gone bad. Each wheel has one. All 3 things here tie to each other. Need a scan tool to find out which sensor it is. they are about 50 to 100 bucks.

one question is your abs or brake light on. you might have a wheel abs hub going out and not reading that will prevent traction control to work

replace your relay switches first.. It could be a coroded contact with the fuses

recheck the sensor most likely not properly hook up or attached to clip

i have an ABS, Traction Control, and Variable Steering warning lights come on right after i put the car in drive and move forward.
2005 Pontiac Grand Prix

You have a bad sensor at one of the tires that need replacing that operates ABS and traction control. If you take it in to a shop it will run $130 but they can find which sensor is causing the problem. But if you do it you might have to replace all 4 sensors to make sure you got the right one. Every hard to diagnoses. Its better for the shop cause they can get electrical read outs for each sensor.