2017-2019 Genesis G90 Lexicon Amplifier: Diagnosing No Sound and Replacement Guide
This guide covers common failure symptoms, replacement costs, and crucial compatibility information for the G90's premium sound amplifier.
- This amplifier (part # 96370-D2500) is ONLY for 2017-2019 G90 models with the Lexicon premium sound system.
- A replacement amplifier with the same part number does NOT require dealer programming; it is a plug-and-play part.
- The most common failure symptom is a complete loss of sound while the infotainment screen still works.
- The amplifier is located in the driver's side of the trunk behind the trim panels.
Symptoms of a Failing Genesis G90 Amplifier
When the Lexicon amplifier begins to fail, the symptoms are usually obvious and directly impact the audio experience. Because it controls all speakers, a problem with the amp will affect the entire system, not just one or two speakers. Here are the most common signs of failure:
- Complete Loss of Sound: The most common symptom is no audio from any source (radio, Bluetooth, navigation), even though the infotainment screen appears to be working correctly.
- Intermittent Audio: Sound may cut in and out randomly while driving. This can be caused by loose internal connections or components overheating.
- Distorted or Crackling Sound: Audio may sound fuzzy, distorted, or be accompanied by popping and crackling noises from all speakers. This often points to a failure in the amplifier's internal processing or power stages.
- Low Volume: The sound may be very quiet even at maximum volume, indicating the amplifier is no longer providing proper power to the speakers.
- Some Speaker Channels Not Working: While less common, the amplifier can fail in a way that cuts power to a specific set of speakers (e.g., all left-side speakers or all rear speakers).
Pro Tip: Before assuming the amplifier is bad, check the audio system fuses first. You can find their locations in your owner's manual. Also, try a system 'hard reset' by disconnecting the vehicle's negative battery terminal for about 15 minutes. Sometimes, a software glitch in the audio system can cause a temporary loss of sound, and a reset can restore it without needing to replace any parts.
Known Issues, TSBs, and Recalls
As of mid-2026, there are no specific recalls or widespread Technical Service Bulletins (TSBs) from Genesis directly addressing the 96370-D2500 amplifier in the 2017-2019 G90. While there are recalls for other components on these vehicles, such as the starter solenoid and fuel pump, the audio amplifier has not been identified as having a common, widespread defect requiring a recall. Failures appear to be isolated incidents rather than a systemic issue. Some TSBs exist for the main infotainment (AVN) unit related to software updates and connectivity, but these do not pertain to the amplifier itself.
Programming and Installation Requirements
This is the most important question for anyone replacing this module. Based on extensive research and reports from sellers of used units, a replacement amplifier with the exact same part number (96370-D2500) does not typically require programming. The installation is considered plug-and-play. The vehicle's system is designed to recognize and work with a compatible replacement amplifier without needing a dealer to flash or code it to the VIN.
Warning: You MUST use an amplifier from a vehicle equipped with the Lexicon premium sound system. An amplifier from a base model audio system will not work. Always match the part number 96370-D2500 exactly.
Buying a Used 2017-2019 G90 Amplifier
Given the high cost of a new OEM amplifier, a used unit from a reputable recycler is an excellent value. Since programming is not required, it's a straightforward swap. Here’s what to look for:
- Verify the Part Number: The only guaranteed fit is part number 96370-D2500. Do not install a part with a different number, even if it looks physically similar.
- Inspect the Connectors: Check the electrical connector ports for any signs of corrosion, bent pins, or water damage. The G90 is not known for water leaks in the trunk, but it's always a crucial inspection point for any used electronic module.
- Check the Casing: Look for any significant dents or damage to the metal casing, which could indicate damage from a severe collision.
- Seller Reputation: Buy from a seller with a good return policy and warranty. Many used parts sellers on platforms like eBay offer a 30 or 90-day warranty, which is enough time to install the part and confirm it works.
- Why Used OEM is a Good Choice: Aftermarket direct-fit replacements for this specific Lexicon amplifier do not exist. A used OEM unit ensures you retain the original sound quality, power, and integration with the factory infotainment system at a fraction of the cost of a new one.
Replacement Overview
The amplifier is located in the trunk, mounted in the driver's side (LH) quarter panel, behind the trunk liner. While not technically difficult, the replacement requires patience and care to remove the interior trim panels without breaking any clips.
- Disconnect the Battery: Before working on any electronic component, disconnect the negative terminal of the 12V battery.
- Remove Trunk Trim: You will need to remove the trunk floor covering, the rear threshold plate, and the driver's side trunk liner. This typically involves removing several plastic clips, cargo hooks, and possibly unbolting a tie-down point. A set of plastic trim removal tools is highly recommended to avoid scratching panels or breaking clips.
- Unbolt the Amplifier: Once exposed, the amplifier is held to a bracket with a few 10mm bolts. Remove these bolts.
- Disconnect Wiring: Carefully disconnect the electrical connectors from the amplifier. Each connector has a release tab that needs to be pressed.
- Install the New Amplifier: Installation is the reverse of removal. Bolt the new amplifier in place, reconnect the wiring harnesses, and carefully reinstall all trunk trim panels before reconnecting the battery.
Cost Comparison
The cost to replace a G90 Lexicon amplifier can vary significantly depending on the part source.
| Part Source | Estimated Cost |
|---|---|
| New OEM | $1,500 - $1,600 |
| New Aftermarket | Not Available |
| Used OEM | $250 - $500 |
| Remanufactured | $300 - $550 (often requires a core return) |
| Shop Labor Cost | $175 - $325 |
Frequently Asked Questions (FAQ)
Does a replacement 2017-2019 G90 amplifier need to be programmed by a dealer?
No, as long as you are replacing it with the identical part number (96370-D2500), programming is not required. It is a plug-and-play installation.
Where is the radio amplifier located on the 2017-2019 Genesis G90?
The amplifier is located in the trunk, behind the trim liner on the driver's side (LH) quarter panel.
Can I upgrade my base audio system to the Lexicon system by just installing this amplifier?
No, this is not a simple upgrade. The Lexicon system uses different speakers, additional speakers, and different wiring harnesses. It is not feasible to upgrade just by swapping the amplifier.
My radio screen works but there is no sound. What should I check first?
First, check the fuses for the audio system as detailed in your owner's manual. Second, try performing a hard reset by disconnecting the negative battery cable for 15 minutes. If neither of these steps restores sound, the amplifier is the most likely cause of the problem.
Technical Specifications
OEM Part Numbers: 96370-D2500 96370D2500
For Lexicon 17-speaker premium sound system.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Genesis G90: