Top 5 Problems With the 2023 Genesis G90

The 2023 Genesis G90 has been subject to a significant safety recall (NHTSA ID 23V-510) concerning its Occupant Classification System (OCS). This system is crucial for detecting the presence and weight of a front passenger to properly deploy the airbag in a collision. A malfunction can lead to the front passenger airbag being disabled even when an occupant is present, posing a severe safety risk.

Symptoms drivers notice

• Front passenger airbag "OFF" indicator light illuminates even with a passenger present.
• Warning messages related to the OCS or airbag system appearing on the dashboard.
• No detection of a front passenger by the vehicle's safety systems.
• Diagnostic trouble codes (DTCs) related to the OCS.

Typical repair cost and time

DIY parts: N/A (Recall fix). Typical shop labor: N/A (Recall fix).

How to diagnose and fix

1. Check if your vehicle is affected by NHTSA Recall 23V-510 using your VIN on the NHTSA website or Genesis owner portal.
2. Contact your authorized Genesis dealership immediately to schedule the recall repair.
3. The dealership will inspect the OCS and perform the necessary software update or component replacement as specified by the recall instructions.
4. Ensure the "Passenger Airbag OFF" indicator functions correctly after the repair, illuminating only when the seat is empty or occupied by a child seat.

Another critical recall (NHTSA ID 23V-407) affecting the 2023 Genesis G90 involves the Fuel Pump Controller Unit (FPCU). This unit regulates the fuel supply to the engine, and if its electrical components are damaged, it can lead to a loss of fuel pressure, causing the engine to stall or prevent it from starting. This issue can occur while driving, increasing the risk of an accident.

Symptoms drivers notice

• Engine stalls unexpectedly while driving.
• Vehicle fails to start or cranks but does not turn over.
• Check Engine Light illuminates with fuel system-related diagnostic trouble codes.
• Reduced engine power or hesitation during acceleration.
• Unusual noises from the fuel pump area (less common but possible).

Typical repair cost and time

DIY parts: N/A (Recall fix). Typical shop labor: N/A (Recall fix).

How to diagnose and fix

1. Verify if your 2023 Genesis G90 is included in NHTSA Recall 23V-407 by checking your VIN on the NHTSA website or Genesis owner portal.
2. Schedule an appointment with your local Genesis dealership for the recall service.
3. The dealership technicians will inspect the FPCU and replace it with a new, improved unit if necessary, as per the recall instructions.
4. Confirm that the Check Engine Light is off and the vehicle starts and runs smoothly after the repair.

Modern luxury vehicles like the 2023 Genesis G90 are equipped with sophisticated Advanced Driver-Assistance Systems (ADAS) such as Smart Cruise Control, Lane Keeping Assist, and Forward Collision-Avoidance Assist. While these systems enhance safety and convenience, some owners have reported instances of erratic or overly sensitive behavior, leading to unexpected braking, steering interventions, or false warnings.

Symptoms drivers notice

• Sudden, unexplained braking when no obstacle is present (phantom braking).
• Lane Keeping Assist providing abrupt or incorrect steering corrections.
• Forward Collision-Avoidance Assist triggering false warnings or interventions.
• Adaptive Cruise Control losing track of the lead vehicle or reacting inconsistently.
• Warning lights or messages related to ADAS sensors (e.g., radar, camera) on the dashboard.

Typical repair cost and time

DIY parts: $0. Typical shop labor: 1-3 hours ($150-$450) for diagnosis and software updates/calibration if not covered by warranty.

How to diagnose and fix

1. Check the vehicle's infotainment settings to ensure ADAS sensitivity levels are set to your preference (e.g., "Normal" instead of "High").
2. Ensure all exterior sensors (radar in front bumper, camera on windshield) are clean and free from obstructions like dirt, ice, or debris.
3. If issues persist, document the specific scenarios and contact your Genesis dealership for a diagnostic check.
4. The dealership may perform software updates for the ADAS control modules or recalibrate the sensors.
5. In rare cases, a faulty sensor (radar, camera) might require replacement, which should be covered under warranty for a 2023 model.

The 2023 Genesis G90 features a large, integrated infotainment system that controls many vehicle functions and provides navigation, media, and smartphone integration. However, as with many complex new systems, some owners have experienced occasional software glitches, slow response times, or issues with smartphone connectivity, particularly with Apple CarPlay and Android Auto.

Symptoms drivers notice

• Infotainment screen freezing or becoming unresponsive.
• Slow loading times for menus or applications.
• Intermittent disconnection or failure to connect with Apple CarPlay or Android Auto.
• Navigation system lagging or displaying incorrect information.
• System rebooting unexpectedly.

Typical repair cost and time

DIY parts: $0. Typical shop labor: 0.5-2 hours ($75-$300) for diagnosis and software updates if not covered under warranty.

How to diagnose and fix

1. Perform a soft reset of the infotainment system (consult your owner's manual for the specific button combination, often holding down the power button).
2. Ensure your smartphone's operating system and the Genesis infotainment system software are up to date.
3. Try different USB cables for wired Apple CarPlay/Android Auto, as faulty cables are a common cause of connectivity issues.
4. If problems persist, visit your Genesis dealership. They can check for and apply any available software updates for the infotainment head unit.
5. In rare cases, a faulty head unit or related module may need replacement, which should be covered under warranty.

Beyond the main infotainment system, some 2023 Genesis G90 owners have reported various minor electrical quirks. These can range from inconsistent key fob detection to issues with interior lighting, power accessories, or other sensor-related anomalies that don't fall under ADAS or infotainment. These are often early production software or communication glitches.

Symptoms drivers notice

• Intermittent "key not detected" warnings, even with the key fob inside the vehicle.
• Power windows or seats occasionally not responding immediately.
• Interior or exterior lights flickering or not functioning correctly.
• Minor sensor warnings appearing and disappearing without clear cause.
• Battery drain issues (less common but possible with electrical glitches).

Typical repair cost and time

DIY parts: $0-$50 (e.g., key fob battery). Typical shop labor: 1-3 hours ($150-$450) for diagnosis and software updates if not covered by warranty.

How to diagnose and fix

1. Replace the battery in your key fob, as a weak battery can cause "key not detected" issues.
2. Check all fuses related to the affected electrical components (refer to your owner's manual for fuse box locations and diagrams).
3. Perform a full vehicle reset by disconnecting the negative battery terminal for 15-30 minutes (ensure you know how to reset any security features afterward).
4. Document the specific electrical quirk, including when and how it occurs, and present this information to your Genesis dealership.
5. The dealership will use diagnostic tools to identify any fault codes and apply relevant software updates or replace faulty modules under warranty.

Which problem to fix first

For any 2023 Genesis G90 owner, the absolute priority is to address any open safety recalls immediately. Both the Occupant Classification System (OCS) and Fuel Pump Controller Unit recalls pose significant safety risks, potentially leading to disabled airbags or engine stalling. These repairs are performed free of charge by Genesis dealerships and should be scheduled without delay. Once recalls are clear, then focus on any ADAS, infotainment, or minor electrical glitches, which are typically less critical and often resolved with software updates.

When to see a professional

While basic troubleshooting like checking fuses, replacing key fob batteries, or performing infotainment resets can be done by owners, any persistent or complex issue with your 2023 Genesis G90 should be handled by a professional. Given the vehicle's newness and extensive warranty coverage, it's highly recommended to take it to an authorized Genesis dealership for diagnosis and repair. This ensures proper diagnostic tools are used, genuine parts are installed, and any covered repairs are performed at no cost to you.

Frequently asked questions

Are there any recalls for the 2023 Genesis G90?

Yes, the 2023 Genesis G90 has two significant safety recalls: one for the Occupant Classification System (OCS) which may disable the front passenger airbag, and another for the Fuel Pump Controller Unit (FPCU) which can cause engine stalling. Owners should check their VIN for affected vehicles and contact a Genesis dealership for the free repair.

How reliable is the 2023 Genesis G90?

As a new model, long-term reliability data is still emerging. However, early issues primarily revolve around software glitches in ADAS and infotainment, alongside two critical safety recalls. These are common for new, technologically advanced vehicles and are typically addressed under warranty by the manufacturer.

Can I fix 2023 Genesis G90 electrical issues myself?

Minor electrical issues like a dead key fob battery or a simple infotainment reset can be DIY. However, for any persistent or complex electrical problems, especially those affecting safety systems or requiring diagnostic tools, it's best to consult an authorized Genesis dealership due to warranty coverage and system complexity.

Sources and further reading

Owner forums, NHTSA complaints, and OEM TSB summaries informed this guide.

This guide is not a substitute for OEM service procedures; use a qualified technician for safety-critical work.