Ram Trucks 2015 Chassis Cab Commercial - Diesel Supplement - Manual (Page 232)

The exhaust brake feature will only function when the
driver toggles it on by pushing the exhaust brake button
until the ЉExhaust Brake IndicatorЉ is illuminated. Nor-
mal (Full Strength) exhaust brake mode is indicated by a
yellow ЉExhaust Brake IndicatorЉ.
Once the ЉExhaust 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.
The automatic transmission will downshift more aggres-
sively in TOW/HAUL mode when the exhaust brake is
enabled to increase brake performance.
CAUTION!
Use of aftermarket exhaust brakes is not recom-
mended and could lead to engine damage
WARNING!
Do not use the exhaust brake feature when driving in
icy or slippery conditions as the increased engine
(Continued)
Exhaust Brake Switch
230 STARTING AND OPERATING