2001 Buick LeSabre Owner's Manual - Page 138

Battery System Warning Light When you turn the key to RUN, this light will turn on briefly to show that the generator and battery charging systems are working. If the light stays on, a chime will sound indicating that the vehicle needs service. You should take your vehicle to the dealer as soon as possible. To save the battery until you get there, turn off all accessories and set the climate control system to OFF. If the warning light comes on, there is a brake problem. Have your brake system inspected right away. United States Canada This light should come on when you turn the key to RUN. If it doesn't come on then, have it fixed so it will be ready to warn you if there's a problem. If the light comes on while you are driving, pull off the road and stop carefully. You may notice that the pedal is harder to push. Or, the pedal may go closer to the floor. It may take longer to stop. If the light is still on, have the vehicle towed for service. See "Towing Your Vehicle" in the Index. Brake System Warning Light Your vehicle's hydraulic brake system is divided into two parts. If one part isn't working, the other part can still work and stop you. For good braking, though, you need both parts working well. 2-73