Uconnect 4 UAQ/UAS – Connection & Troubleshooting Guide

🧩 1. Parts List

(*Included only when bezel is ordered)

• UAQ Radio

• USB Hub

• *USB Hub Harness

• *8.4" OEM Bezel

• *HVAC Module

• *Resistor

• *Resistor Harness

• *Bezel Harness

🔌 2. Rear Connector Overview (Left to Right)

Connector Color	Function	Notes
Purple	Wi-Fi / Phone	Connection awareness only
White	AM/FM Antenna	Main antenna connection
Yellow/Curry	SiriusXM & GPS Antenna	Dual-purpose antenna input
Pink	Global antenna (non-USA)	Connection awareness only
Red	Diagnostics	Vehicle diagnostic communication
Gray	Micro USB port	For hub connection via USB harness
Black	52-pin Power & Signal	Main connection: power, CAN, audio, camera, etc.

⚙️ 3. Installation & Initialization Tips

• Ensure Black 52-pin plug is fully seated and locked.

• Allow the vehicle to sleep 48 cumulative hours after installation for full feature restoration (splash screen, SiriusXM, camera, themes, HVAC controls, etc.).

• Re-pair your phone to enable Bluetooth and hands-free functionality.

• Use the included USB hub and harness (if provided) for Apple CarPlay/Android Auto support.

• 2017 UAQ Models: Hold the top right corner of the screen for 5–10 seconds for a soft reset.

🛠️ 4. Dealer Mode Access

• Method 1: Press and hold both bottom corners of the touchscreen.

• Method 2: Press and hold Driver-side Temp Up + Temp Down + Front Defrost for 7–10 seconds.

🚨 5. Troubleshooting Checklist

⚠️1. Screen Does Not Power On

• Verify 52-pin connector is locked in place.

• Check vehicle fuses related to infotainment (consult owner’s manual).

• Perform a CAN-bus reset:

  • Disconnect the negative battery terminal(s)

  • Wait 15–20 minutes

  • Reconnect and test

⚠️2. Features Missing After Install

• Wait 48 cumulative hours (radio must enter deep sleep cycles).

• Features like heated/ventilated seats, splash screen, XM, themes, and camera may not appear immediately.

⚠️3. No Sound

• Confirm speaker wiring (via 52-pin) is secure.

• For vehicles with external amps (Alpine/HK), confirm amp receives power.

• Perform CAN-bus reset if needed.

⚠️4. CarPlay / Android Auto Not Working

• Use certified USB cable (no generics).

• Restart both phone and vehicle.

• Reconnect USB hub securely.

• Ensure new USB hub was installed (and USB harness if applicable).
  

• 📄 Apple CarPlay Troubleshooting (Apple)
  📄 Android Auto Troubleshooting (Google)

⚠️5. HVAC Controls Missing or Frozen

• Check for proper seating of HVAC control harness (if using upgraded bezel).

• Wait up to 48 hours or perform CAN-bus reset.

⚠️6. Backup Camera Not Working

• Ensure original camera wiring is routed to the correct pins in the 52-pin connector.

• Wait up to 48 hours if all else checks out.

• Use an external screen tester to check live feed if unsure.

   JL Wrangler Green Screen Issue:

• If you experience a green screen or a Mountain Dew–like filter when activating the backup camera, it is most likely due to a digital camera signal from a JL Wrangler being read by a UAQ radio that supports only analog camera input.
  

• This occurs when a radio originally from an "I-mount" UAQ (non-JL) is installed into a Wrangler JL, which requires a JL-specific UAQ unit with digital camera support.
  

• To resolve this, the radio must be replaced with a JL-compatible UAQ.
  

⚠️7. Steering Wheel Controls Not Working

• Confirm CAN wiring in 52-pin is not damaged.

• Perform CAN-bus reset.

🔄 8. Software & Firmware Updates:

Keeping your UAQ/UAS radio up to date can resolve bugs, compatibility issues, and improve system stability.

📥 Official Software Update Resource:

👉 UAQ Software Updates – Infotainment Knowledgebase

👉 UAS Software Updates – Infotainment Knowledgebase

• Ensure the radio is properly installed and functioning.
  
• Follow all steps carefully—interrupted updates may cause errors like "Error Code 20."
  
• Only use update files specific to your part number or model (e.g., JL-specific vs. non-JL).
  

      💡 Tip: If you're experiencing repeated reboots, connectivity issues, or missing features, checking for the latest firmware may resolve your issue.

⚠️ 9. Screen Not Responding / “Ghost Touch” Issues

If the screen becomes unresponsive or begins navigating on its own ("ghost touching"), this may be due to overtightened screen bracket screws during installation.

• Loosen the bracket screws slightly — about half of a quarter turn — to relieve screen pressure.
  

• Test touch functionality after adjusting to ensure normal operation.
  

• Avoid over-tightening during installation to prevent this issue.
  

📝 Additional Tips

• 2014 Grand Cherokee Users: Retaining heated/cooled seats requires additional interface.
  

• 4C Retrofit Interface.

• 2013-2014 Ram 1500 & HD: Retaining heated/cooled seats requires additional interface.
  

• 4C Retrofit Interface.

• Uconnect Access → Sirius Guardian: Paid Uconnect Access subscriptions do not carry over to UAQ radios.

• Rearview Camera / SiriusXM Add-ons: OBD Genie bundles are available for plug & play integration
  

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