Mullen THREE 2023 User manual
2023 Mullen THREE
Quick Start Guide
*Preproduction model shown
Based on current specifications and subject to change.
Note: All figures are reference only and Mullen reserves the right to modify
any and all information shown, without notification. Options subject to change.
Thank you for partnering with Mullen Automotive!
By operating a Mullen Urban Utility Low Cab Forward electric vehicle, you have joined a
growing group of drivers who can fully appreciate the difference that a purpose-built vehicle
can make.
Please take the time to familiarize yourself with this Quick Start Guide and the vehicle itself.
The time you invest will ensure a great relationship with your Mullen electric vehicle.
Always refer to the Mullen Vehicle Center website at https://www.mullenusa.com/mullen-
vehicle-center for the most up to date information on your vehicle.
Mullen Automotive Inc.
1055 W. Square Lake Rd.
Troy, MI 48098
Thank you,
Your team at Mullen
pg. 2 © Copyright 2023 Mullen Automotive, Inc. All Rights Reserved
Table of Contents
Contents
KEYS & LOCKS ......................................................................................................................................................................................................................... 3
STARTING THE VEHICLE
............................................................................................................................................................................................................... 4
SHIFTING THE VEHICLE
................................................................................................................................................................................................................ 5
DRIVER CONTROLS OVERVIEW
..................................................................................................................................................................................................... 6
HIGH VOLTAGE SAFETY & INFORMATION
...................................................................................................................................................................................... 8
HIGH VOLT CHARGING PROCEDURE
.............................................................................................................................................................................................. 9
12-VOLT BATTERY CHARGING
.................................................................................................................................................................................................... 10
INSTRUMENT PANEL INDICATORS
.............................................................................................................................................................................................. 11
LIFTING THE TILT CAB
............................................................................................................................................................................................................... 12
CHECKING CAB FLUIDS
.............................................................................................................................................................................................................. 14
CHECKING CHASSIS FLUIDS
........................................................................................................................................................................................................ 15
CONTACT INFORMATION
.......................................................................................................................................................................................................... 16
pg. 3 © Copyright 2023 Mullen Automotive, Inc. All Rights Reserved
KEYS & LOCKS
Each vehicle has one standard key and one remote control switchblade. The keys unlock/lock
the doors from outside the vehicle. The remote fob and the key are a single device.
If locking the vehicle with a door ajar, the vehicle’s exterior lights will flash, and the horn will
sound three times before locking.
The vehicle will automatically relock itself if the vehicle is not entered within 30 seconds
of the remote’s use to unlock the vehicle.
pg. 4 © Copyright 2023 Mullen Automotive, Inc. All Rights Reserved
STARTING THE VEHICLE
1. Turn ON the red exterior Master Power Switch located behind the cab (ON position is
straight up and down / OFF position is parallel with the ground).
2. Ensure Doors are fully closed and fasten the Seat Belt.
3. Verify Parking Brake is engaged while Gear Shift Lever is in N (Neutral).
4. Adjust Mirrors, Steering Wheel and the Driver Seat for comfort.
5. Insert Key into the Ignition Switch, push in Brake Pedal and turn Ignition Key to START.
The green READY Indicator illuminates when the vehicle is running. All other indicator lights should be off except for
the Parking Brake indicator light.
pg. 5 © Copyright 2023 Mullen Automotive, Inc. All Rights Reserved
SHIFTING THE VEHICLE
To change gears, the driver’s foot must be placed on the Brake Pedal or the gear will not engage.
1. Maintain pressure on the Brake Pedal.
2. Release the Parking Brake.
3. Move the Gear Selector to the desired gear.
4. Verify the selected gear on the instrument panel before proceeding.
This Vehicle is NOT equipped with “PARK” on the Gear Selector. You must ALWAYS put your vehicle in Neutral and
engage the Parking Brake every time you park.
pg. 6 © Copyright 2023 Mullen Automotive, Inc. All Rights Reserved
DRIVER CONTROLS OVERVIEW
pg. 7 © Copyright 2023 Mullen Automotive, Inc. All Rights Reserved
pg. 8 © Copyright 2023 Mullen Automotive, Inc. All Rights Reserved
HIGH VOLTAGE SAFETY & INFORMATION
Ensure the Charging Cable is in good condition.
1. Look for signs of cracks or tears in the insulation.
2. Ensure the connection ports are free of corrosion, water or debris.
3. Do not modify the cable in any manner.
4. Do not use a Charging Cable with signs of damage.
5. Do not use extension cords with the Charging Cable.
Maintaining the State of Charge (SOC) between 20% and 90% will help improve the longevity of the high voltage
battery. Charge the high voltage battery pack immediately if the SOC is below 20%. When charging, set the
maximum state of charge at 90%
When not in use, the vehicle should be stored in temperatures between 32°F (0°C)and 113°F (45°C). If the vehicle
will be parked for an extended period (e.g., 30 days), set the maximum SOC at 50%.
Vehicle Battery range can vary depending on conditions such as climate, driving behavior, road conditions, etc.
This vehicle is equipped with a high-voltage battery system capable of delivering over 400 volts of direct current.
The high voltage cables and connectors are orange in color for easier identification. Obey all caution labels that
are attached to the vehicle. Failure to do so could lead to serious injury or death.
Do not touch high-voltage wiring, connectors or high-voltage parts, such as the inverter unit, high-voltage battery
or drive motor. Touching, disassembling, removing or replacing high-voltage parts, cables and connectors can
cause severe burns or electric shock that may result in serious injury or
death.
pg. 9 © Copyright 2023 Mullen Automotive, Inc. All Rights Reserved
HIGH VOLT CHARGING PROCEDURE
The Charging Port is located behind the cab near the passenger door (upper left corner of
the passenger wheel well).
1. Engage the Parking Brake and remove the Ignition key.
2. The exterior red Master Power Switch located behind the cab must be left ON.
3. Release the Charging Port door latch.
4. Insert Charger. The instrument panel will display charging icon.
5. Close the charging door when complete to keep the port clean.
pg. 10 © Copyright 2023 Mullen Automotive, Inc. All Rights Reserved
12-VOLT BATTERY CHARGING
1. Apply the Parking Brake.
2. Turn the Ignition Key switch to the START position.
3. The READY telltale will display on the dash cluster.
4. Let the vehicle sit in READY state for 2 (two) hours.
If the vehicle is parked for an extended period (e.g., 30 days), the 12V auxiliary battery may lose charge and fail to
start the vehicle. To prevent the auxiliary battery from becoming depleted, periodically start the vehicle to allow
the 12V battery to charge.
To minimize the drain on the battery when the vehicle is parked and unused, make sure the doors are fully closed,
door locked and all accessories are turned OFF. Also, make sure the exterior red Master shut off switch is turned
OFF.
pg. 11 © Copyright 2023 Mullen Automotive, Inc. All Rights Reserved
INSTRUMENT PANEL INDICATORS
pg. 12 © Copyright 2023 Mullen Automotive, Inc. All Rights Reserved
LIFTING THE TILT CAB
1. Locate the cab release handles on the lower right exterior of the driver door.
2. Pull forward the gold latch release located behind the black handle.
3. While simultaneously holding the gold latch forward, grab the cab release lever and
push upwards.
4. Once cab release lever is up, pull the safety release straight towards you.
pg. 13 © Copyright 2023 Mullen Automotive, Inc. All Rights Reserved
5. Use the stationary black cab handle to lift the tilt cab upwards.
6. The safety latch will lock into place. Must add pin for additional safety.
7. To close cab: Remove pin, release safety lock and pull outward.
8. Pull down the tilt cab, lock into place and close the cab release lever.
When releasing safety latch, use caution. Moving parts can cause severe personal injury.
pg. 14 © Copyright 2023 Mullen Automotive, Inc. All Rights Reserved
CHECKING CAB FLUIDS
1. Brake Fluid is located on driver dashboard side panel.
2. Windshield Washer Solvent is located on passenger dashboard side panel.
pg. 15 © Copyright 2023 Mullen Automotive, Inc. All Rights Reserved
CHECKING CHASSIS FLUIDS
Vehicle Fluids located under the cab.
1. Power Steering Fluid
2. Coolant/Antifreeze
3. High Voltage Battery Coolant
pg. 16 © Copyright 2023 Mullen Automotive, Inc. All Rights Reserved
CONTACT INFORMATION
Please visit us at www.mullenusa.com.
For Service, Parts and Warranty Inquiries, please contact our Customer Solutions Support
Team at (248) 988-4498.
Service email: service@mullenusa.com
Scan code to access vehicle manuals, guides and emergency response information. This label is
located inside the charge port door and inside the glove compartment.
These instructions are applicable to Mullen THREE vehicles. Certain devices, facilities or functions introduced in
these instructions may not be installed on your vehicles due to different vehicle configurations. Mullen reserves
the right to modify any and all information shown without notification. Options subject to change.
Part# AGIB-306X-AA
mullenusa.com/mullen-vehicle-center
Table of contents
Other Mullen Automobile manuals
