Benefits of the exhaust brake are:
• vehicle driving control
• reduced brake fade
• longer brake life
• faster cab warm-up
The exhaust brake feature will only function when the
driver toggles it on by pushing the exhaust brake button
until the ⬙Exhaust Brake Indicator⬙ is illuminated. Nor-
mal (Full Strength) exhaust brake mode is indicated by a
yellow ⬙Exhaust Brake Indicator⬙.
Once the ⬙Exhaust Brake Indicator” is illuminated and
the vehicle is moving faster than 5 mph (8 km/h); the
exhaust brake will automatically operate when the driver
removes pressure from the accelerator pedal. Exhaust
braking is most effective when the engine RPM is higher.
Exhaust Brake Switch
230 STARTING AND OPERATING