1993 Pontiac Bonneville Owner's Manual - Page 105
1993 Pontiac Bonneville Manual
Page 105 highlights
Features & Controls Battery Warning Light (CONI:) your accessories, such as.the radio and climate control system. Some clusters with gagesdo not have a battery warning light. They have a CHECK GAGES warning to indicate a problem. Vehicles with the supercharged engine also have a similar battery warning light. Malfunction IndicatorLamp (Service Engine Soon Light) A computer monitors operation of your fuel, ignition and emission controls systems. This light should come on when the ignition is on but the engine is not running, as a check to showyou it is working. If it does not come on at all, have it fixed right away. If it stays on, or it comes on while you are driving, the computer is indicating that you have a problem. You should take your vehicle in for service soon. a m . 104