1998 Pontiac Firebird Owner's Manual - Page 251
1998 Pontiac Firebird Manual
Page 251 highlights
I NOTICE: ~ Rocking Your Vehicle To Get It Out First, turn your steering wheel left and right. That will clear the area around your front wheels. If your vehicle has traction control, you should turn the system off. (See "Traction Control System'' the Index.) Then shift in back and forth between REVERSE(R) and a forward gear (or with manual transmission, between a FIRST (1) or SECOND (2) and REVERSE (R)), spinning the wheels aslittle as possible. Release the accelerator pedal while you shift, and press lightly on the accelerator pedal when the transmission in gear. If that doesn't is get you out aftera few tries, you may need to be towed out. If you do need to be towed out, see "Towing Your Vehicle" in the Index. ~ Spinning your wheels can destroy parts of your vehicle aswell as the tires. Ifyou spin the wheels too fast while shifting your transmission back and forth, you can destroy your transmission. For information about using chains on your vehicle, tire see "Tire Chains" in the Index. 5-42