Volvo 780 Owner's Manual page 10

1989 Volvo 780
possible.
NOTE: This warning light is illuminated if the alternator is not charging. However, parking brake,
brake failure and bulb failure warning lights will be illuminated at the same time due to the design
of the system.
Brake failure warning light
If the light comes on while driving and the brake pedal can be depressed further than normal, it is an
indication that one of the brake circuits is not functioning.
Stop immediately, open hood and check brake fluid level (see section "Brake fluid, Power steering")
WARNING!
Fluid level below MIN mark": Do NOT drive. Tow car to shop for check/repair of brake
system.
Fluid level between MIN and MAX mark: Proceed immediately and with caution to a Volvo dealer for
an inspection of the brake system.
Oil pressure warning light
If the light comes on during driving, the oil pressure is too low. Stop the car and then stop the engine
immediately. Do not drive the vehicle. See section titled "Engine oil".
After hard driving, the light will come on occasionally when the engine is idling. This is normal,
provided it goes off when the engine speed is increased.
Bulb failure warning light
The light will come on if any of the following bulbs are defective:
one of the low beam headlights
one of the tail lights
one of the brake lights (when the brake pedal is depressed)
Check the fuse and bulb.
See sections titled "Replacing bulbs" and "Fuses".
Should the warning light come on after a defective outside bulb has been replaced, the corresponding
bulb on the other side-of the car should also be replaced.
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