1994 Pontiac Bonneville Owner's Manual - Page 103

Features & Controls Oi/ Pressure Gage(OPTION) (CONK) Driving your vehicle with low oil pressure can cause extensive engine damage. H230! Voltmeter (omoN) Vhen the engine is running, the gage hows the condition of the charging ystem. Readings between the red Iarning zones indicate the normal perating range. 300St Gage (OPTION) I I NOTICE: Ih lo I Damage to your engine from neglected oil problems can be costly and is not covered by your warranty. Leadings in either red warning zone possible problem in the electrical ystem. The "CHECK GAGES' light will s: a lso come on, and a warning chime will SIound. Have your vehcle serviced irmediately. illdicate a khicles equipped with the supercharged ngine have this boost gage thatindicates acuum during light to moderate throttle nd boost under heavier throttle. The gage isplays the air pressure level in psi going ]to the engine's combustion chamber. 'hegage is automatically centered at zero si every time the engine is started. ,ctual vacuum or boost is displayedfrom lis zero point. Changes in ambient ressure, such as driving in mountains nd changing weather, will slightly hange the zero reading. Vhen your engine is not running, but the pition is on (in the "Run" position), the age shows your battery's state of charge I DC volts. ...102