Mercury Active Trim User Manual

Congratulations on your purchase of Active Trim.
Active Trim is Mercury Marine’s patented GPS-based automatic
engine trim system. This intuitive, hands-free system continually
adjusts engine trim for changes in operating conditions to improve
performance, fuel economy, and ease of operation. It responds to
boat maneuvers with precision and delivers a better overall driving
experience. No knowledge of trimming an engine is needed to take
advantage of Active Trim.
•
As the boat accelerates, the engine will trim out.
• As the boat decelerates, e.g. making a turn,
the engine will trim in.
• Active Trim can be overridden at anytime by using the regular
manual trim buttons.
• Active Trim allows the boat operator to compensate for changes
in boat load, driver preferences, and weather conditions while
maintaining full automatic control.
Quick Reference
Guide
Active Trim
P/N 90-8M0111820 JANUARY 2016
© 2016 MERCURY MARINE. All rights reserved. Reproduction in whole or in part without permission is prohibited.
Trim Profile Adjust
Lets the boat operator adjust the Active Trim
profile to account for changes in load, water
conditions, etc.
System Status Light
Alerts the boat operator to the status of the Active
Trim system:
• AMBER SOLID – system working normally.
• AMBER FLASHING – user override, system
not actively controlling. (Press On/Resume to
resume Active Trim control.)
• RED FLASHING – No GPS signal, system not
actively controlling. Operatate the trim manually
until signal is established. System will recover
on its own.
• RED DOUBLE FLASHING – system fault, system
not actively controlling.
On/Resume
Press the On/Resume button to turn
Active Trim on. On/Resume also allows
the boat operator to resume automatic
control mode when in manual operation.
O
Turns off Active Trim for operators who
want full manual control. No automatic
trim features are available when Active
Trim is off.
Trim Profile Indicator
Indicates currently selected trim profile.
Higher number will provide more trim at
a given speed.
Boatbuilder/Dealer: Place in owner’s bag
Boat Owner: Place in glovebox for reference

Mercury Active Trim Specifications

General

Function	Automatically adjusts trim for optimal performance and fuel efficiency
Compatibility	Compatible with outboard and sterndrive engines.
Control	Automatic control based on boat speed and engine RPM. Manual override available.
Sensors	Utilizes GPS and engine speed sensors.
Benefits	Improves fuel efficiency, performance, and ease of operation.
Modes	Five selectable trim profiles to accommodate different boat types and driving styles: 1 - Bass Boat, 2 - Runabout, 3 - Offshore, 4 - Pontoon, 5 - Ski/Tow. Also features a full manual mode.

Summary

Active Trim Controls and Indicators

On/Resume Button

Turns Active Trim on or resumes automatic control from manual operation.

Off Button

Turns off Active Trim for full manual control, disabling automatic features.

Trim Profile Indicator

Shows the currently selected trim profile, indicating trim level at a given speed.

Trim Profile Adjust

Allows the operator to adjust the Active Trim profile based on load and conditions.

System Status Light

Indicates system status: normal, override, no GPS signal, or system fault.

How Active Trim Works

Four Modes of Operation

Details the four operational modes: Idle Speeds, Acceleration (hole shot), Planing Speeds, and Override.

Active Trim Operational Considerations

Resume Functionality

Explains conditions under which Active Trim automatically resumes after manual override.

Shallow Water Operation

Notes that Active Trim does not detect depth and requires manual override in shallow water.

Built-in GPS

Describes the GPS function, its start-up modes, and its importance for automatic control.