Freightliner SmartShift Shift Control
General Information, SmartShift
The SmartShift transmission control is an electronic transmission control device. It is installed with the following transmissions:
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Eaton Fuller UltraShift PLUS
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Mercedes-Benz Automated Gear Shift (AGS)
It replaces the typical floor-mounted shift lever or dash-mounted push button control.
SmartShift accepts driver requests for transmission functions and transmits them through hard wiring to the transmission control unit (TCU). SmartShift is a true shift-by-wire system.
SmartShift offers two main advantages over conventional transmission control devices. Without a floor-mounted shift control, usable cab space is increased. The SmartShift control mounts to the right-hand side of the steering column and is operated by the fingers of the driver's right hand, allowing both hands to remain on the steering wheel.
A two-position slide switch (Fig.) is mounted on the body of the control lever just before the paddle widens out. The slide switch allows the driver to choose automatic (AUTO) or manual (MAN) mode.
In AUTO mode, gears shift automatically, without driver interaction. Manual gearshifts are accomplished by a momentary pull or push on the control in the plane perpendicular to the steering wheel. Pull upward (toward you) on the control to upshift and push downward (away from you) to downshift. The control is spring-loaded and returns to mid-position when released after an upshift or downshift.
For Eaton Fuller UltraShift PLUS, and AutoShift transmissions (Fig.), a four-position (R, N, D, L) selector switch is located at the end of the lever.
For Eaton Fuller UltraShift PLUS (Fig.), a four-position R, N, D, L) selector switch is located at the end of the lever. For the Mercedes-Benz AGS (Fig.), a three-position R, N, D) selector switch is located at the end of the lever.
Note: To upshift manually, pull the lever up (towards you). To downshift manually, push the lever down (away from you).
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SmartShift Control Lever
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Slide Switch (forward driving mode switch)
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MAN Mode (of slide switch)
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AUTO Mode (of slide switch)
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Upshift Direction
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Reverse Position (of selector switch)
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Selector Switch
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Neutral Lock Button
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Neutral Position (of selector switch)
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Drive Position (of selector switch)
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Low Position (of selector switch)
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Downshift Direction
Fig. 1, SmartShift Control (with Eaton Fuller UltraShift PLUS)
Note: To upshift manually, pull the lever up (towards you). To downshift manually, push the lever down (away from you).
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SmartShift Control Lever
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Slide Switch
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MAN Mode (of slide switch)
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AUTO Mode (of slide switch)
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Upshift Direction
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Reverse Position (of selector switch)
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Selector Switch
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Neutral Lock Button
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Neutral Position (of selector switch)
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Drive Position (of selector switch)
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Downshift Direction
Fig. 2, SmartShift Control (with Mercedes-Benz AGS)
Embedded in the selector switch is a small neutral lock button to prevent accidental shifts into gear from neutral. Any time you shift through N, press down on the neutral lock button to move the switch from neutral (N) to another gear, such as drive (D), low (L), or reverse (R). When shifting to N, it is not necessary to press the neutral lock button.