Isuzu D-MAX 2020, Owner'S And Driver'S Manual

Page: 93 / 924

2-37
IMPORTANT INFORMATION
RTUL20SH004101
When driving down a long slope, use
engine brake together with the foot brakes.
Using the low-gear engine brake reduces
the work load on the foot brakes and
yields greater braking force. In automatic
transmission models, do not use the
auto mode, as it does not provide engine
efficiency. Use only the manual mode for
engine braking.
Driving Down a Long Slope
CAUTION
• Frequent use of the foot brakes can cause vapor lock and brake fade, resulting
in reduced brake effectiveness.
• Be very careful when using engine braking in a low gear because the engine is
likely to over-rev.
NOTE
[What is vapor lock?]
• If the brakes overheat due to frequent use, the heat can cause the brake
fluid to boil so that air bubbles are created in the brake fluid. Depressing the
brake pedal simply compresses the air bubbles; pressure is not transmitted
to the wheel cylinders, so the brakes' effectiveness sharply deteriorates. This
phenomenon is called vapor lock.
[What is brake fade?]
• Frequent use of the brakes can cause the brakes to overheat so that the
frictional force of the friction surface decreases and the brakes become less
effective than normal. This phenomenon is called brake fade.
5108428_sec02_IMPORTANT INFORMATION.indd 37 2020/11/13 14:48:35