Isuzu N Series 2008 Owner's Manual page 241

HBB is a brake booster device that utilizes hydraulic pressure from the HBB pump
integral with the power steering pump.
CAUTION
• If the brake booster warning light comes on or a warning buzzer continues to
sound, there may be a problem with the HBB.
If this warning light comes on while driving, immediately pull off to a safe place
well clear of traffic and promptly contact the nearest Isuzu Dealer for inspection.
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CONTROLS AND INSTRUMENTS
Hydraulic Brake Booster (HBB)
V
Brake Booster Warning Light
→ Refer to page 4-36
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3/09/2008 5:31:54 PM