TREK 5301478 CarBack Radar Owner’s Manual

: June 15, 2024
: TREK

Table of Contents

TREK 5301478 CarBack Radar Owner’s Manual
CarBack
supplemental to Owner’s manual Basic operation
First time use
Power down sequence
Low battery mode
Traveling with the battery
Protection
North America
Japan
United Kingdom

TREK 5301478 CarBack Radar Owner’s Manual

CarBack

supplemental to Owner’s manual Basic operation

First time use

To turn the radar/light on, press and hold the power button for 1
To turn the radar/light off, press and hold for 1 second.
When the radar is off, you can check battery status with a single click and the fuel gauge will light
Turn the radar on prior to pairing to a computer or phone for the first time. Below are instructions for compatible Garmin and Wahoo

NOTES: Instructions may vary depending on your computer and model.

Trek recommends reviewing the pairing instructions that came with your device prior to use.
The two examples are on the opposite side of this page.

Garmin:

Make sure both the Garmin computer and the Trek CarBack Radar are charged and your computer is powered
Turn on the Trek Carback with a 1 second You are now in pairing mode.
Make sure your Trek CarBack Radar is within range (check your computer manual for appropriate distance).
On the Garmin, navigate to the main menu ð Settings ð Sensors & Accessories ð

Add Sensor or Search to initiate a search for available sensors.

Once the Trek CarBack is detected, select it from the list of available
Follow any on-screen prompts to complete the pairing

Once the devices find each other, a successful pairing message should appear on the Garmin
Once paired with the Trek CarBack, the Garmin will control when the light is on and what mode it is Trek recommends Auto mode.
The CarBack light has 2 settings for turning on and You can change this setting on compatible Garmin computers.
- Option 1: When you power on your Garmin, your light on the CarBack turns When you power off your Garmin, your CarBack light will power off.
- Option 2: When you press start for your timer, the light will turn When you save your ride, the light will turn off.

Wahoo:

Make sure both the Wahoo computer and the Trek CarBack Radar are charged and your computer is powered
Turn on the Carback with a 1 second You are now in pairing mode.
Make sure your Trek CarBack Radar is within range (check your computer manual for appropriate distance).
On the Wahoo, navigate to: Settings ð Radar Pairing ð Add new sensor ð select Radar from the list of available sensors to initiate a search for available
- Once the devices find each other, a successful pairing message should appear on the Wahoo
Verify connection: Before riding, ensure your Wahoo display shows relevant information from the CarBack

NOTE: The Wahoo computer does not control the light mode; you will need to use the button on the Trek CarBack Radar to cycle through light modes to pick your desired setting.

For more information, check out the FAQ section on the Trek CarBack Radar product page on trekbikes.com.

About this product

The CarBack is a Bluetooth & ANT+ compatible radar system with an integrated light to help increase a rider’s situational awareness on the road. The radar can communicate with select bike computers and smartphones. For detailed instructions on setting up your device, please refer to the user manual provided by the respective brand’s bike computer

WARNINGS:

Do not use if the battery is impacted. Also do not puncture, crush, deform, disassemble, or heat a lithium-ion battery above 140° F (60° C). Damage to the battery may result in a fire, explosion, and/or exposure to specks of lithium or lithium
The light is very bright. Do not stare at an operating light. Staring may be harmful to the
Proper use of the device can enhance your riding experience, but improper use can lead to distractions and severe injury or even Exercise caution and use the device appropriately and attentively.
Proper use: Quickly check the radar device information while maintaining focus on your surroundings (when making turns, passing, changing lanes, ). Avoid prolonged staring or getting distracted by the device’s display.

Improper use: Overly focusing on the display may cause you to overlook obstacles or dangers, putting you at risk of serious consequences

IMPORTANT: Check your local lighting laws. Flashing lights and full brightness may not be allowed in all locations. The CarBack radar light does not conform to the German road traffic regulation StVZO.

Specifications

Battery information : 154mA (typical), 7 Vdc, 2000mAh
Battery charging temperature : 50°F to 113°F (10°C to 45°C)*
Battery operating temperature : 14°F to 140°F (-10°C to 60°C)*
Battery storage temperature : 14°F to 113°F (-10°C to 45°C)*
Light lumens : 90
Water ingress rating : IPX7
Weight : 70g (2.5oz)
Charge port : USB-C
Dimensions : 70 x 50 x 30mm
Detection : Up to 7 vehicles
Detection range : 1-240m
Runtime : 7 hours (dependent on traffic, may exceed 7 hours)
Chargetime : 4 hours

Light Modes

Press the button to cycle through the modes

Basic operation

Download the Trek mobile app and follow the prompts to connect with the CarBack

With the CarBack paired to your bike computer

Power up sequence

Turn on your bike
The computer will turn on the

NOTE: Make sure your CarBack light is on. Not all computers work the same. Check your bike computer’s manual for details.

Check to make sure the CarBack turns
The computer will connect to the

Power down sequence

Bike computer is powered
Light and CarBack will turn

If the bike computer is disconnected from the CarBack, the radar and light may stay on which may deplete the battery. For example this may happen if the bike computer is removed from the bicycle and taken away from the CarBack. The fuel gauge lights will remain on anytime the radar is
active (on). The CarBack unit will automatically turn on/off when it has been previously paired with a compatible bike computer.

Reset

To reset the CarBack to factory default settings:

With the CarBack on, press and hold the power button for 15 The main LED will flash once at 8 seconds and again at 15 seconds.
Release the button after the second

Once reset, the wireless broadcast will be disabled until the first time the CarBack is powered on

WARNING:

A bicycle without correct lights and reflectors might be difficult for other people to see, and you might not be able to see them. If you cannot see, or other people cannot see you, you could have an accident. Make sure your lights are set up, operating correctly, and that batteries are charged

Charging the battery

The CarBack was charged prior to packaging, but we recommend you charge it before first use.

IMPORTANT: For best results, charge at room temperature in a dry place. Use an approved (ex. UL certified) USB-C charger rated for 500mA or greater. Avoid extreme conditions including wet, cold, or extreme heat.

Open the USB port
Plug the USB-C charger cable into the USB port on the
Plug the cable into a computer or wall
When all lights are off, the charge is Unplug the charger cable and close
If you charge your computer at the same time as your CarBack it may keep your CarBack on after unplugging. When unplugging the CarBack after charging, turn the CarBack off if the fuel gauge is still on. Press and hold the power button for 1 second to power down.

IMPORTANT: Ensure the USB cover is latched before riding in rain or wet conditions. If the USB cover is not closed, damage to the unit may occur. Do not leave the unit outdoors when not in use
NOTE: If the main button indicator is flashing red while plugged in, the light is either too hot or too cold to charge. Charging will begin when the light is between 32˚F (0˚C) and 104˚F (40˚C).

CarBack battery charging and care

Low battery mode

At 5% battery life, the display indicator will flash red. The radar does not operate in this low battery mode but the light will continue to operate.
NOTE: Your bike computer will notify that the radar has been disconnected.

Fuel Gauge	Charge, %	Charge Duration
Four lights green	75% – 100%

3.5-4 hours from dead battery to full

Three lights green| 50% – 75%
Two lights amber| 25% – 50%
One light red| 5% – 25%
One light red flashing| 0% – 5%

Traveling with the battery

Make sure the CarBack is turned off during travel. When traveling by air, verify with your carrier how lithium ion batteries of this capacity must be treated. Often these devices need to be packed in carry-on luggage.

Protection

The CarBack has been designed and tested for use in all riding conditions and has an ingress rating of IPX7. The CarBack is not intended to be stored outdoors and should be stored and charged indoors after use.

Recycling

Please recycle the CarBack with the battery. In the US you can find out where to do this at www.call2recycle.org.

Statements of Regulatory Compliance

FCC Compliance

Carback – FCC ID: 2AHXD-5301478

This device complies with part 15 of the FCC Rules. Operation is subject to the following conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. This product may cause interference to radio equipment and should not be installed near maritime safety communications equipment or other critical navigation or communication equipment operating between 0.45-30 MHz. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving
Increase the separation between the equipment and
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult your bike shop or an experienced radio / TV technician for

NOTES: TREK BICYCLE CORPORATION IS NOT RESPONSIBLE FOR ANY RADIO OR TV

INTERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS TO THIS EQUIPMENT. ANY CHANGES OR MODIFICATIONS NOT EXPRESSLY APPROVED BY TREK BICYCLE CORPORATION OF THIS DEVICE COULD VOID THE USER’S AUTHORITY TO OPERATE THE DEVICE.

Exposure to radio frequency energy.

The radiated output power of this device meets the limits of FCC/IC radio frequency exposure limits. This device should be operated with a minimum separation distance of 5mm (1/4 inches) between the equipment and a person’s body.

IMPORTANT NOTE:

FCC Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment and meets the FCC radio frequency (RF) Exposure Guidelines. This equipment has very low levels of RF energy that is deemed to comply without testing of specific absorption rate (SAR

European and International consumers, please contact your bike shop
This symbol on the product(s) and/or accompanying documents means that used electrical and electronic products should not be mixed with general household waste.
For proper treatment, recovery, and recycling outside the US, please take this product(s) to designated collection points. Alternatively, in some countries you may be able to return your products to your local retailer upon purchase of an equivalent
new product. Disposing of this product correctly will help save valuable resources and prevent any potential negative effects on human health and the environment, which could otherwise arise from inappropriate waste handling. Please contact your local authority for further details of your nearest designated collection point.
Penalties may be applicable for incorrect disposal of this waste, in accordance with your national legislation.