2019-2020 Acura TLX Audio Control Panel: Non-Nav, Programming, and Replacement Guide

Symptoms of a Failing Audio Control Panel

Failure of the audio control panel can manifest in several ways, often making it difficult to control your vehicle's sound system. These issues can range from minor annoyances to a complete loss of control.

• Unresponsive Buttons: Some or all of the buttons on the panel do not respond when pressed. You might find that the volume knob works, but you can't change the radio station or switch media sources.
• Intermittent Functionality: The buttons may work sometimes and not others. This can be random or triggered by bumps in the road.
• System Glitches: While less common for just the control panel, faults can sometimes contribute to broader infotainment system issues like freezing, a blank screen, or the system getting stuck on mute. In many cases, these more severe symptoms point to issues with the main audio unit or network connections rather than the button panel itself.
• Radio Stuck On: An inability to turn the audio system off using the panel buttons is a reported symptom.

Known Issues, Recalls, and Technical Service Bulletins (TSBs)

While there are no specific recalls for the 2019-2020 TLX audio control panel itself, Acura has acknowledged issues with the broader infotainment system in similar models and years. A notable problem in 2019-2020 Acura models (particularly the RDX, but relevant due to shared technology) involves popping or crackling sounds, blank screens, and network loss messages. These issues were traced to loose MOST bus network connectors (FAKRA connectors) and were addressed by a warranty extension and Service Bulletin 21-009. 🎬 Watch: How to fix Acura popping sounds and black screens If you are experiencing symptoms beyond just unresponsive buttons, such as crackling sounds or a blank screen, the issue may be with these network connectors rather than the control panel itself.

Additionally, software glitches can cause problems like the system rebooting or CarPlay not working correctly. Acura has released software updates to address these issues, as noted in TSB B18060A.

Programming and Anti-Theft Requirements

A common concern with modern electronic parts is the need for programming or dealing with anti-theft systems after installation.

• Programming: The search results do not indicate that this specific control panel (the button assembly) requires programming by a dealer. It is primarily an input device. However, if you replace the entire radio/audio unit that this panel connects to, programming and VIN-linking by a dealer may be necessary.
• Anti-Theft Code: The anti-theft system in Acuras is tied to the main audio unit, not the control panel. If power is disconnected from the car (e.g., changing the battery) or the main radio unit is replaced, the system will lock and display "CODE" on the screen. For 2015 and newer TLX models, you can often reset the system simply by pressing and holding the audio power button for about five seconds. If that doesn't work, you will need to retrieve your 5-digit radio code. This code can often be found on a sticker in the glove box or can be retrieved from an official Acura website using your VIN and the radio's serial number.

Buying a Used 2019-2020 TLX Audio Control Panel

Purchasing a used OEM audio control panel is a cost-effective way to fix button-related issues. Here’s what to look for:

• Verify the Part Number: This is the most critical step. Ensure the part you are buying is 39050-TZ3-A31. This confirms it is for a 2019-2020 TLX without navigation.
• Physical Inspection: Check photos carefully for any signs of physical damage, such as cracks in the plastic, deep scratches, or excessive wear on the button graphics. Ensure all knobs are present and appear straight.
• Check for Liquid Damage: Spilled drinks are a common cause of failure for these panels. Look for any sticky residue or discoloration around the buttons, which could indicate liquid intrusion.
• Why Used OEM is a Good Choice: A used original equipment (OEM) part ensures perfect fitment and integration with your vehicle's existing systems. The aftermarket for these specific control panels is virtually non-existent, making a quality used OEM part the best alternative to a costly new one.

Replacement Cost Comparison

Replacing the audio control panel involves costs for the part and labor. Here is an estimated breakdown:

Frequently Asked Questions (FAQ)