It means that one of your sensors related to the stability of the car is registering a problem. It could be anything from steering wheel position sensor to your anti-lock brake system, or even speed control sensor on any of your four hubs. You will have to take it to a qualified dealer with an appropriate scanner to find out which unit it is, and then have it replaced. Good luck
Stability system needs service?
how do i restate my security system in my 2000 Bonneville
How to override the security system
The 1988 Pontiac Bonneville originally used R12 freon, this freon is no longer available due to government regulation. Your A/C system must have it's A/C service ports replaced. Then the system filled with the correct amount of R134a freon.
Per the 2002 Bonneville Manual the cooling system holds 10 quarts.
"http://wiki.answers.com/Q/I_have_a_1999_pontiac_bonneville_and_the_monitor_light_system_is_on"
The idle air control valve on a 2002 Pontiac Bonneville is located on the intake manifold. This valve allows direct adjustment to the engines idle system.
It doesn't have a carburetor, it has a throttle body fuel injection system.
check ground wires under both doors
You can't, it is an automatic system. The system is most likely leaking and needs to be repaired if the shocks are flat.
TRY DISCONNECT'IN BATTERY FOR A FEW MINUTES IF NOT AN HOUR OR SO.
Begin by training the water from your 1997 Pontiac Bonneville cooling system. Remove the heater core water supply hoses. Remove the heater core retaining bolts. Reverse the process to install the new heater core.