2025 Polaris RZR Pro R code 517922
30 May

2025 Polaris RZR Pro R code 517922

What You Need to Know About Vented Seats Issue

If you own or work on a 2025 Polaris RZR Pro R or Pro R 4 Ultimate equipped with vented front seats, you may have encountered a frustrating issue: a Fault code C1147 or SPN: 517922-5 popping up on your 7” RIDE COMMAND display or instrument cluster.

Here’s what you need to know—and how to fix it. (see screenshots below)

🔧 The Issue: Chassis Fault Warning When Seat Fan Is On

Symptoms:

  • A triangle chassis fault icon appears on the display.

  • Fault code C1147 or SPN: 517922 is triggered.

  • This occurs when turning on the driver’s seat vent fan.

Affected Models:

  • 2025 RZR Pro R Ultimate

  • 2025 RZR Pro R 4 Ultimate

  • Only units equipped with vented front seats are affected.

🔍 The Cause

Polaris has identified the root of the issue as a VCM (Vehicle Control Module) calibration fault. This means the fan itself may function correctly, but the system is misreading the action, triggering a false warning.

✅ The Fix: VCM Calibration Update

As of October 15, 2024, Polaris has released a VCM calibration update that resolves this issue.

Solution Steps:

  1. If the driver's seat vent fan turns on normally but the warning icon still appears:

    • Update the VCM software with the latest calibration.

    • Use the new VCM part number: 4083275.

  2. If the fan does NOT turn on, follow the full diagnostic procedure outlined in Polaris' official Team Tip documentation.

🛠️ Tech Tip: Don’t Replace the Seat—Update the Software

We've seen some techs immediately suspect a faulty seat fan or wiring. Don’t waste your time or the customer’s money replacing parts unnecessarily. This is a software issue—start with the VCM calibration update.

📸 Step-by-Step Guide

We’ve included screenshots below showing exactly how to:

  • Access the VCM in the diagnostics tool

  • Apply the updated calibration

  • Confirm the warning is cleared

(📷 See screenshots below)

Need Help?

If you're an Iron Born Offroad customer or technician and need help with the update, give us a call or swing by the shop—we’re always here to help.

Stay safe and ride smart.
– The Iron Born Offroad Team