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CONTROLS AND INSTRUMENTS
ADVICE
If a warning buzzer sounds when the exhaust brake is in operation, promptly
pull over the vehicle safely and contact the nearest Isuzu Dealer for inspection.
Even if the gearshift lever is placed in the "N" position, the exhaust brake does
not disengage until the engine is warmed up if the warm-up system is on.
•
•
Conditions for Inoperable Exhaust Brake
Under the following conditions, the exhaust brake does not engage.
• The accelerator pedal or the clutch pedal (manual transmission models) is
pressed.
• The gearshift lever / selector lever / selector button is in the "N" position.
• The vehicle is traveling at a speed of 5 km/h (3 MPH) or lower, or the engine
speed drops to a value where the exhaust brake does not engage (excluding
automatic transmission models).
• During gear shifting (Smoother models).
• The vehicle is traveling in 1st gear (automatic transmission models).
• The vehicle is traveling at 20 km/h (12 MPH) or lower speeds (automatic
transmission models).
NOTE
If your vehicle is equipped with an antilock brake system (ABS), the exhaust
brake may disengage during ABS operation even when the exhaust brake
switch is in the "ON" position and the exhaust brake indicator light is on. The
exhaust brake may disengage temporarily as the vehicle passes over a bump
even when the brake pedal is not depressed.
•
4608498sec04CONTROLSANDINSTR4-844-844608498sec04CONTROLSANDINSTR4-844-84 2015/11/0213:58:592015/11/0213:58:59
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