2019 Genesis G90
Vehicle Specs & Maintenance Data
The 2019 Genesis G90 maintenance specs on this page cover the key fluids, torque values, and wear items you need for routine service. Use these numbers as a quick reference when performing oil changes, tire rotations, brake jobs, and other scheduled maintenance on your Genesis G90.
For oil changes, the 2019 Genesis G90 takes 5W-30 Full Synthetic motor oil with a capacity of 6.4 quarts. Brake fluid type is DOT 3, the recommended coolant is Phosphate-based Green/Blue, and transmission fluid is SP-IV-M (ATF). Always use the manufacturer-recommended fluids to maintain warranty coverage and engine longevity.
When mounting wheels on the Genesis G90, torque the lug nuts to 79-94 ft-lbs using a calibrated torque wrench. Over- or under-torquing can lead to warped brake rotors or loose wheels. Re-torque after 50 to 100 miles on newly installed wheels.
Owners of the 2019 Genesis G90 have reported 5 common issues including "Air Suspension Compressor and Strut Failure", "Infotainment System Lag and Display Glitches" and "Electrical System — Parasitic Battery Drain". Scroll down to the Diagnostics tab for detailed descriptions, solutions, and estimated repair costs.
There are 2 NHTSA safety recalls on file for the 2019 Genesis G90. Check the Recalls tab below for full details.
Specifications on this page are compiled from multiple publicly available sources including manufacturer documentation, NHTSA data, and automotive databases. Always cross-reference with your owner's manual or official factory documentation before purchasing parts or performing any service.
The 2019 Genesis G90 uses 5W-30 Full Synthetic motor oil (6.4 qt capacity), requires lug nuts torqued to 79-94 ft-lbs, takes DOT 3 brake fluid.
Manufacturer-recommended maintenance schedule for the 2019 Genesis G90. Always verify intervals against your owner's manual.
Enter a diagnostic trouble code to see causes, symptoms, and fixes for the 2019 Genesis G90.
Common problems reported by 2019 Genesis G90 owners, with recommended fixes and estimated repair costs.
Air Suspension Compressor and Strut Failure
The 2020 G90's electronically controlled air suspension system is the most commonly reported problem area. The air suspension compressor can overheat and fail from excessive cycling caused by slow air leaks in the struts. Owners report the vehicle sagging overnight, a suspension malfunction warning on startup, and the compressor running loudly for extended periods trying to restore ride height.
Have the dealer perform a leak-down test on each air strut to identify which corner is losing pressure. Replace the leaking air strut(s) and inspect the compressor for overheating damage. If the compressor relay or motor has burned out from overwork, replace the entire compressor assembly. The air suspension is covered under the Genesis 5-year/60,000-mile warranty.
Est. Cost: $0 under warranty; $1,800 - $3,500 per air strut; $1,000 - $2,000 for compressor out of warrantyInfotainment System Lag and Display Glitches
The 12.3-inch infotainment touchscreen can exhibit noticeable input lag, occasional screen blackouts, and graphical glitches where elements render incorrectly or overlap. Apple CarPlay connections are unstable, with frequent disconnections and failure to reconnect after starting the vehicle. The rear-seat entertainment screens may also experience synchronization issues.
Genesis released infotainment software updates to improve system responsiveness and connectivity stability. Have the dealer update the navigation and multimedia firmware to the latest version. For persistent CarPlay issues, ensure you are using an Apple-certified cable and try resetting the CarPlay connection by deleting the vehicle from your iPhone's CarPlay settings and re-pairing.
Est. Cost: $0 for software update under warranty; $1,200 - $2,500 for head unit replacement if neededElectrical System — Parasitic Battery Drain
The G90's extensive array of luxury electronics creates a significant parasitic draw when the vehicle is parked. Owners report dead batteries after 3-5 days of non-use. The Advanced Driver Assistance System (ADAS) radar modules, the remote smart parking assist system, and the premium audio amplifier are common culprits for failing to enter proper sleep mode.
Have the dealer perform a parasitic draw test to identify which module is preventing the vehicle from entering deep sleep. Genesis released software updates for several control modules to reduce standby power consumption. If the battery has been deeply discharged multiple times, replace it with the correct AGM specification battery. Enabling 'Battery Saver' mode in the vehicle settings can help.
Est. Cost: $0 for software update under warranty; $300 - $500 for premium AGM battery; $200 - $600 for module diagnosisHeated and Cooled Seat System Malfunctions
The heated, ventilated, and power-adjustable seats with massage function can experience various malfunctions. Common issues include the seat ventilation fans failing (particularly in the rear seats), the massage function motors burning out, and the seat memory function losing its saved positions. The driver seat may also develop a persistent squeak from the power seat track.
Have the dealer diagnose the seat control module for fault codes. The ventilation fan motor under the seat cushion can be replaced individually. For massage motor failures, the seat back cover needs to be removed to access the massage bladder motors. Lubricate the power seat track rails with the Genesis-specified lubricant to eliminate squeaking.
Est. Cost: $0 under warranty; $300 - $600 for ventilation motor; $500 - $1,000 for massage motor out of warrantyRoad Noise and NVH Intrusion at Highway Speeds
Despite the G90's luxury positioning, some owners report higher-than-expected road noise and NVH (Noise, Vibration, Harshness) intrusion at highway speeds, particularly from the rear wheel wells and A-pillar area. Wind noise around the frameless door windows and tire noise from the standard 19-inch or optional 20-inch wheels are the primary contributors.
Have the dealer inspect the door weatherstripping seals for proper seating and replace any that are not making full contact. Adding aftermarket sound-deadening material to the rear wheel wells can significantly reduce tire noise. Switching to a premium touring tire with a lower noise rating (look for tires with foam inserts like Continental ContiSilent or Pirelli Noise Cancelling System) can make a noticeable improvement.
Est. Cost: $0 for seal adjustment under warranty; $300 - $600 for sound deadening; $1,000 - $2,000 for premium quiet tires2 NHTSA safety recalls for the 2019 Genesis G90. Check your VIN at NHTSA.gov
ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
Hyundai Motor America (Hyundai) is recalling certain 2018-2020 Genesis G80, 2017-2022 G90, and 2019-2022 G70 vehicles equipped with a 3.3-liter V6 turbocharged engine. The left turbocharger oil feed pipe may deteriorate and leak oil.
An oil leak in the presence of hot engine components can increase the risk of an engine compartment fire.
Dealers will replace the left turbocharger oil feed pipe, free of charge. Owner notification letters were mailed May 3, 2024. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 019G. This recall expands and replaces recall number 19V-538. Vehicles previously repaired under 19V-538 will need to have the new remedy completed.
ELECTRICAL SYSTEM:STARTER ASSEMBLY:SOLENOID
Park OutsideHyundai Motor America (Hyundai) is recalling certain 2015-2016 Genesis, 2017-2019 Genesis G80, Genesis G90, and 2019 Genesis G70 vehicles. Water may enter the starter solenoid and cause an electrical short, which can result in an engine compartment fire while parked or driving.
An engine compartment fire while parked or driving can increase the risk of injury.
Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will install a remedy relay kit in the engine junction box, free of charge. Owner notification letters were mailed July 15, 2024. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's numbers for this recall are 254(H) and 018G(G).
