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Introduction

 WARNING

See the 

Important Safety and Product Information

 guide in the 

product box for product warnings and other important 

information.
The device can improve situational awareness. It is not a 

replacement for cyclist attentiveness and good judgement. 

Always maintain awareness of your surroundings, and operate 

the bicycle in a safe manner. Failure to do so could result in 

serious injury or death.
Always consult your physician before you begin or modify any 

exercise program.

Getting Started

You can use the Varia Rearview Radar RTL515/RTL516 with 

your compatible Garmin

®

 device, a smartphone, or the Varia 

RDU (radar display unit). This list provides an overview of the 

installation and setup tasks.
• Charge the device (

Charging the Device

, page 5

).

• Install the universal mount (

Installing the Universal Mount

page 1

).

• If you are using an Edge

®

 1030 device, pair the devices (

The 

Varia RTL515/RTL516 and Your Edge 1030

, page 2

).

• If you are using your smartphone, download the Garmin 

Varia app to your smartphone, and pair the devices (

The 

Varia RTL515/RTL516 and the Varia App

, page 3

).

• If you are using the Varia RDU, pair the devices (

The Varia 

RTL515/RTL516 and Your Radar Display Unit

, page 4

).

• If you are using another Garmin device, pair the devices 

(

Other Compatible Devices

, page 4

).

Tips for Installing the Device

The Varia Rearview Radar RTL515/RTL516 device includes a 

taillight and micro radar that can detect approaching vehicles up 

to 140 meters away.
• Select a secure location to mount the device where it does 

not interfere with the safe operation of your bike.

• Mount the device as high on the seat post as possible for 

optimal light visibility and radar detection.

NOTE: 

The mount surface should be vertical. The mounts 

are designed to accommodate most seat post angles.

• Mount the Varia RTL515/RTL516 device on the seat post 250 

mm to 1200 mm above the road.

• Install the device correctly.

The device faces backward and is perpendicular to the road.

• Make sure there are no obstructions in front of the light.
• Go for a test ride during the day in a safe environment.

Installing the Universal Mount

1

Select a rubber pad   based on your seat post shape, and 

place the rubber pad on the back of the universal mount.

2

Place the universal mount on the seat post.

3

Attach the universal mount securely using one band  .

4

Align the tabs on the back of the device with the universal 

mount notches  .

5

Press down slightly and turn the device clockwise until it 

locks into place.

Device Overview

Device key

Press to change light modes.
Hold for 1 second to turn the device on and enter active 
mode.
Hold for 2 seconds to turn the device off.
Hold for 8 seconds to reset the device.

Status LED

Changes color based on the battery level, pairing status, 
and charging status. (

Varia RTL515/RTL516 Status LED

page 1

)

Varia RTL515/RTL516 Status LED

LED State

Status

Flashing purple

The device is in active pairing mode.

Flashing blue

The device is in smart mode and can be 
controlled by a paired Varia RDU or compatible 
Garmin device.

Flashing green

The device is charging.

Solid green

The device is fully charged.

Flashing red

The device has approximately 60 or fewer 
minutes of battery life remaining.

Solid red

An error occurred. You may need to restart the 
device.

Taillight Modes

You can switch the Varia RTL515 light modes by pressing the 

device key.

Introduction

1

Summary of Contents for Varia RTL515

Page 1: ...VARIA REARVIEWRADARRTL515 RTL516 Owner sManual...

Page 2: ...n concerning the use of this product Garmin the Garmin logo ANT Edge f nix Forerunner and v voactive are trademarks of Garmin Ltd or its subsidiaries registered in the USA and other countries Garmin C...

Page 3: ...ing the Varia RDU Device 4 Pairing the Radar Device with the RDU Device 4 Turning On the Varia RDU Device 4 Turning Off the Varia RDU Device and Radar Device 4 Other Compatible Devices 4 Pairing the R...

Page 4: ......

Page 5: ...the device as high on the seat post as possible for optimal light visibility and radar detection NOTE The mount surface should be vertical The mounts are designed to accommodate most seat post angles...

Page 6: ...5 minutes or until you press the device key 5 Select your sensor and select Add When the sensor is paired with your Edge device the sensor status is Connected The radar and bike light status icons ap...

Page 7: ...p connects to your Varia radar device using Bluetooth technology The app displays radar information and enables you to view settings After pairing the app displays a colored banner indicating the thre...

Page 8: ...d turn the device clockwise until it locks into place Pairing the Radar Device with the RDU Device The Varia RDU device can be paired with one radar device at a time 1 Hold the Varia RDU device key fo...

Page 9: ...ice completely The status LED flashes green while charging The status LED is solid green when charging is complete 6 Remove the USB cable and close the weather cap Tips for Charging the Device Connect...

Page 10: ...go to www garmin com waterrating Product Updates On your computer install Garmin Express www garmin com express This provides easy access to these services for Garmin devices Software updates Product...

Page 11: ...uetooth technology from your smartphone settings and turn it back on Turn both devices off and turn them back on The Varia RTL515 RTL516 device sends light and radar data to the Varia app The Varia ap...

Page 12: ...e 2 4 F f nix 5 Forerunner 5 G Garmin Express 6 updating software 6 GPS signal 2 I indoor training 6 installing 1 4 K keys 1 4 L light modes 1 M mounting the device 1 4 O O rings See bands P pairing 2...

Page 13: ......

Page 14: ...support garmin com GUID C41F445D 457F 447D 88C8 FE286BF157E9 v1 April 2020...

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