2019-2020 Acura TLX Control Console Switch Panel: Ventilated Seat Options & Replacement Guide

Key Compatibility Warnings for 2019-2020 Acura TLX

Before purchasing a replacement Control Console Switch Panel, you must verify two key features on your vehicle. Ordering the incorrect part is a common and costly mistake.

1. Navigation System Requirement: The part numbers covered in this guide are exclusively for TLX models equipped with the factory navigation system. Panels from non-navigation models are not compatible.
2. Ventilated Seat Option: This is the most critical check. Acura produced two different switch panels for navigation-equipped models: one for vehicles WITH heated and ventilated front seats, and one for vehicles that ONLY have heated seats. These parts are not interchangeable.

Symptoms of a Failing Control Console Switch Panel

Failures in this panel are typically electrical or mechanical, affecting the physical buttons rather than the screens. It's important to distinguish between a faulty switch panel and a failing lower touchscreen, which is a separate known issue.

• Unresponsive Buttons: One or more buttons (e.g., fan speed, temperature, audio source) do not respond when pressed. You might find that the steering wheel controls for the same function still work.
• Intermittent Functionality: Buttons work sporadically. This can sometimes be caused by loose internal connections or failing solder joints.
• Flickering Button Backlights: The illumination behind the buttons may flicker or fail completely, making them difficult to see at night.
• Functions Activate on Their Own: While less common for the switch panel itself, a short circuit could theoretically cause a function to activate without input. This symptom is more often associated with a failing touchscreen digitizer, known as "ghost touching".
• Complete Panel Failure: In rare cases, the entire panel may become unresponsive. This could point to a failed connector or an internal power issue within the unit. Some owners have reported the entire infotainment system going blank, which can sometimes be resolved with a system reboot or by disconnecting the battery for 10-15 minutes.

No specific OBD-II trouble codes are consistently linked directly to the failure of the switch panel itself. Faults related to the systems it controls (like HVAC or audio) may be stored in other modules, but the panel is often a simple input device.

Known Issues, TSBs, and Recalls

As of mid-2026, there are no specific recalls or widespread Technical Service Bulletins (TSBs) from Acura that directly address failures of the 2019-2020 TLX control console switch panel. Recalls for this model year typically involve other components like the fuel pump or engine connecting rod bearings.

However, it is important to be aware of a common issue with the lower 7-inch touchscreen on 2015-2020 TLX models. The screen's digitizer can fail, leading to symptoms like "ghost touching," dead spots, or a frozen display. These are often misdiagnosed as a problem with the button panel. If your climate or audio settings are changing on their own, it is more likely a fault with the touchscreen above the button panel.

Programming and Calibration: Is a Dealer Visit Required?

Buying a Used 2019-2020 TLX Control Switch Panel

Buying a used OEM switch panel is the most cost-effective way to fix a faulty unit. Aftermarket versions of this complex part are generally not available, making used OEM the best choice for fit, finish, and reliability.

Compatibility Checklist:

• Verify Part Number: The surest way to guarantee a match is to use the part number from your original unit. However, if you can't access it, use the ventilated seat option as your guide.
  • For models WITH Ventilated Seats: Use part number 39050-TZ3-A51.
  • For models WITHOUT Ventilated Seats: Use part number 39050-TZ3-A41.
• Physical Inspection: When buying a used panel, carefully inspect the photos or the part in person. Look for deep scratches on the face, worn-off button graphics, and any signs of sticky residue from liquid spills.
• Button Feel: If possible, press each button. They should have a consistent, tactile click and return to their position smoothly. Avoid units with loose or mushy-feeling buttons.

Replacement Overview

Replacing the switch panel is a manageable DIY job for those comfortable with basic interior work. The key is to use proper plastic trim removal tools to avoid scratching the console and surrounding trim. The process generally follows these steps, based on procedures for the 2018-2020 TLX.

1. Safety First: It's a good practice to disconnect the negative battery terminal and wait a few minutes before working on any electronic components.
2. Remove Side Trim Panels: The long trim pieces on either side of the center console need to be carefully pried off. Start from the rear and work your way forward, releasing the clips.
3. Remove Shifter Surround Trim: The trim around the gear selector button assembly must be unclipped and lifted away.
4. Unbolt and Unplug the Panel: With the trim removed, you will gain access to the screws holding the switch panel assembly in place. Once the screws are out, you can gently lift the panel, disconnect the electrical connectors on the back, and remove it from the vehicle.
5. Installation: Installation is the reverse of removal. Connect the electrical plugs to the new panel, secure it with the screws, and carefully reinstall the trim pieces, ensuring all clips snap firmly into place.

Cost Comparison

Prices for this part vary significantly between new and used options. No new aftermarket or remanufactured units were found to be widely available.

Frequently Asked Questions (FAQ)