PEC017
5/3/2018 Page 76 of 105
17.0 Driver Shift Aid (DSA)
Overview
The Driver Shift Aid feature helps to reduce engine fuel consumption by
communicating to the driver the need to upshift in order to reduce engine speed. It is
designed to provide visual notifications through the driver display, encouraging the
driver to perform an upshift at predefined engine speeds. Driver Shift Aid is
compatible with vehicles equipped with manual transmissions or automatic
transmissions operating in manual mode.
Note: The Driver Shift Aid feature is only available vehicles equipped with
PACCAR MX engines manufactured after June 2015, and is not compatible
with vehicles equipped with early model year 2015 or prior engines.
Standard Feature
Without Driver Shift Aid
Feature Options
Driver Shift Aid
The Driver Shift Aid provides visual notifications informing the driver that the
programmable engine speed limit has been reached and encourages the driver to
upshift in order to reduce engine speed and decrease engine fuel consumption.
Driver Shift Aid will advise the driver to upshift if a higher gear is available, the
engine will not underspeed, and the amount of power or torque available after the
upshift is not reduced. Driver Shift Aid is configurable to meet the customer’s specific
application needs.
Minimum DSA Vehicle Speed (N246) defines the speed at which Driver Shift Aid
becomes active. Below this speed, Driver Shift Aid will not display upshift
notifications. Driver Shift Aid Lowest Active Gear (N247) defines the lowest selected
gear that Driver Shift Aid will become active, while Driver Shift Aid Highest Active
Gear (N248) defines the highest selected gear that Driver Shift Aid functionality will
remain active.
Orderable Feature Options & Sales Codes
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