The Pontiac Grand Am GT, depending on the year, may not have a dedicated traction control button. Many models of that era (late 90s-early 2000s) integrated traction control (often called TCS or StabiliTrak) with the ABS system. There's usually no switch to turn it *off* or *on* independently. The system activates automatically when it detects wheel slippage.
If there's a problem with your traction control, it's more likely you'll need to have the system diagnosed by a mechanic, rather than manually turning it on or off. A malfunctioning ABS or traction control system will typically illuminate a warning light on your dashboard.