# Zonar OTAir for Cummins Engine

> Mobile app for remote Cummins engine module updates and calibration. (iPhone/iPad app by Zonar Systems.)

- Source: https://appshunter.io/ios/app/zonar-otair-for-cummins-engine/id1494211626 (this page in markdown: same URL + `.md`)
- Developer: [Zonar Systems](https://appshunter.io/developer/490698341)
- Category: Business
- Price: Free
- Rating: 5.00/5 from 12 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 25 MB
- Languages: American English
- Released: 2020-01-31
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/zonar-otair-for-cummins-engine/id1494211626/reviews.md

## What is Zonar OTAir for Cummins Engine?

Reduce downtime and service center visits due to costly engine control module (ECM) updates with a convenient mobile app solution for fleet maintenance personnel and drivers. Zonar OTAir™ simplifies the calibration process for Cummins engines, reducing service downtime from up to three days to as little as five minutes.

Key features:
•	Simple interface with clear instructions
•	In-app QR code scanner for VIN validation
•	Software rollback feature if deployment issues occur
•	Status updates display on the app during the calibration process
 
How it works:
Firmware updates available on your vehicle’s engines are automatically downloaded through the Zonar V4™ telematics box to the Cummins ECM. When it’s safe for the vehicle to be stationary, the driver:
                1. launches the Zonar OTAir mobile app
                2. scans the vehicle’s unique VIN QR code (or enters it manually)
                3. approves the calibration to begin the update
 
That’s it. Your Cummins-powered vehicle will be back on the road in minutes.
 
Requirements: 
•	Zonar V3™ or V4™ telematics unit installed on the vehicle.
•	Subscription to Cummins Connected Software Updates. Contact Zonar at sales@zonarsystems.com.
•	2017 or newer Cummins engine. See Cummins website for specific engine eligibility.
•	Unique VIN QR code or barcode affixed to the vehicle (contact Zonar if you vehicle needs one).

## Key features

- Remote engine module updates
- Simplified calibration process
- VIN QR code scanner
- Software rollback feature
- Real-time status updates

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/zonar-otair-for-cummins-engine/id1494211626/reviews.md

### 5/5 — Fast and efficient

*2020-02-03, version 1.0*

Huge time and money saver. App is extremely user friendly.

### 5/5 — Fast and easy to use

*2020-02-02, version 1.0*

Works great.  Saves time and money!!!

### 5/5 — Innovative

*2020-02-02, version 1.0*

Looks like an innovative way to update engines

## Frequently asked questions about Zonar OTAir for Cummins Engine

### What is Zonar OTAir for Cummins Engine?

Zonar OTAir for Cummins Engine is a mobile application designed to simplify and expedite the process of updating engine control modules (ECMs) for Cummins-powered vehicles. It allows for remote calibration, significantly reducing vehicle downtime.

### How does Zonar OTAir for Cummins Engine work?

The app works by automatically downloading firmware updates to the vehicle's ECM via the Zonar V4 telematics box. Drivers then use the app to scan the VIN, approve the calibration, and complete the update in minutes.

### What are the requirements to use Zonar OTAir for Cummins Engine?

Users need a Zonar V3 or V4 telematics unit, a subscription to Cummins Connected Software Updates, a 2017 or newer Cummins engine, and a unique VIN QR code affixed to the vehicle.

### Can Zonar OTAir for Cummins Engine update any Cummins engine?

The app is designed for 2017 or newer Cummins engines. Specific engine eligibility should be confirmed on the Cummins website.

### What is the benefit of using Zonar OTAir for Cummins Engine?

The primary benefit is a drastic reduction in service downtime, from up to three days to as little as five minutes, saving time and resources for fleet operations.

### Does Zonar OTAir for Cummins Engine have a rollback feature?

Yes, the app includes a software rollback feature that can be used if any deployment issues occur during the calibration process, ensuring system stability.

### What is the rating for Zonar OTAir for Cummins Engine?

Zonar OTAir for Cummins Engine has a high rating of 5.0 stars based on 12 user ratings.

### Is Zonar OTAir for Cummins Engine free to use?

Yes, the application is available for free download. However, it requires a subscription to Cummins Connected Software Updates and specific Zonar telematics hardware.

## Version history (last 1 release)

### 1.0 — 2020-02-01

No release notes.

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All apps by Zonar Systems: https://appshunter.io/developer/490698341

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*