Trek Accessories

3.8
13 reviews
1K+
Downloads
Content rating
Everyone
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About this app

The Trek Accessories App adds additional functionality to the Trek CarBack Radar Rear Bike Light by giving cyclists advanced alerts and a real-time visual depiction of rear approaching detected vehicles.

Helps you see cars.

Use the Trek Accessories App to receive visual and audible alerts of detected rear approaching vehicles. The Trek Accessories App and Trek CarBack Radar can detect rear approaching vehicles from up to 240M, with vehicles first appearing with an audible beep and a visual indicator at the bottom of the App screen. Once the detected vehicle approaches to within 150M, the vehicle is shown on screen in real time. Once within 75M the Vehicles location is depicted in both distance behind and distance to either side, indicating preparation for a potential pass. Once the vehicle completes a pass, an audible alert indicates the pass and the vehicle drops off the screen.

Helps cars see you.

The Trek Accessories App also gives the ability to turn on a connected Trek CarBack Rear bike Light, all from the App screen. The CarBack Radar offers Daytime Running Light Performance that can be seen from up to 2km during the day to help a cyclist be more visible on the road.

Audible and Visual Alerts

You can choose the best way to receive alerts – Alerts will be shown visually on screen as well as an audio alert when a detected rear approaching vehicle is first detected, and again when it passes. You can choose to turn audible alerts on and off. This allows you to use the app the way you ride – either with a phone mounted on your bike’s handlebars, or stowed in a jersey pocket.

*Please note that the Trek Accessories App currently only works with Trek CarBack Radar Rear Bike Lights.

Learn more about Trek CarBack Radar Rear Bike light here - https://www.trekbikes.com/us/en_US/carback/

Find Trek Accessories App FAQs here - https://www.trekbikes.com/us/en_US/FAQ/trek-carback-radar-rear-bike-light/

Having trouble? Contact our support team for assistance at [email protected]
Updated on
Apr 4, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity and App info and performance
Data is encrypted in transit

Ratings and reviews

3.8
13 reviews
Kellan Reierson
June 2, 2024
Works great at detecting cars. Only issue is I wish the notification sounds could be changed and there be more notification types. For example if there was a different sound for a car close and not in the passing zone. Also the all clear sound is hard to hear compared to the carback sounds.
1 person found this review helpful
Did you find this helpful?
Trek Bikes
August 29, 2024
Thank you for your feedback! We are always open to improving our fun products with new and helpful features. If you have any additional feedback or need additional support, contact us at [email protected]. Ride Bikes, Have Fun, Feel Good!
Richard Schipper
January 9, 2025
Excellent in general for the Carback bike radar but since a recent update / firmware update it now frequently looses Bluetooth connectivity when left idle eg overnight.
Did you find this helpful?
Draff
May 13, 2024
Carback screen goes dark after app running for 30 seconds. Have disabled screen timeout/Screensaver no change. The app itself is going into a dark screen setting and is too dark to read.
Did you find this helpful?
Trek Bikes
May 13, 2024
Thank you for your feedback. Trek Accessories will auto-dim when no traffic is detected to save your mobile device's battery. The screen will be auto-brightened when a car is detected or can be manually brightened by double-tapping the screen. If you need additional support contact us at [email protected]. Ride Bikes, Have Fun, Feel Good!

What’s new

* New Feature - Firmware Updates. Update your CarBack device with the latest and greatest firmware for the best experience possible.
* Misc bug fixes and enhancements

App support

Phone number
+18005858735
About the developer
Trek Bicycle Corporation
801 W Madison St Waterloo, WI 53594 United States
+1 920-478-4685