2017-2026 Genesis G80 Problems: 12 Known Issues

Recall 26V229 / 033G covers certain 2021–2025 G80 vehicles, with 7,195 G80 included in the initial 94,760-vehicle Genesis filing. Insufficient torque-stabilizer concentration during assembly can reduce fastener retention force over time at the crossover pipe connecting the engine's two fuel rails. A loose connection can leak fuel and increase fire risk; fuel odor is the stated possible warning. This is distinct from 21V208's pump-to-rail tube on a limited group of 2.5T four-cylinder vehicles. Do not infer overlapping engine eligibility from those separate campaigns.

Recall 21V208 / 008G covers 31 US-market 2021 G80 vehicles with 2.5-litre turbo engines built January 28–February 5, 2021, within a 147-vehicle G80/GV80 campaign. A damaged manufacturing screw guide produced fuel-tube ends that may not seal correctly between the high-pressure pump and rail. Leakage can increase engine-compartment fire risk in the presence of ignition. Listed possible warnings include fuel odor, smoke, burning or melting odor, and MIL or battery-light illumination; a warning alone does not identify this tube.

Certain 2022 and 2023 Genesis G80s are covered by a safety recall over a fuel pump that can fail. The failure mode NHTSA describes is a loss of drive power — the sedan can stop delivering power to move the car. Because that can happen without warning while the G80 is being driven, NHTSA rates the consequence as an increased risk of a crash. Hyundai Motor America filed the campaign as internal recall 022G, and it is an expansion of the earlier recall 23V-630 — additional vehicles were brought in after the original campaign. The campaign covers 31,440 vehicles across several Genesis models.

The Integrated Charging Control Unit in the Electrified G80 charges the 12-volt auxiliary battery and powers low-voltage accessory equipment. Certain load conditions can make its internal MOSFET fail, potentially opening the ICCU fuse so the 12V battery no longer charges. Genesis attributes the fault to overvoltage at the start and end of the battery charging cycle and to thermal loading during charging or driving. On detection the car shows a series of warnings and enters a fail-safe mode that gradually reduces motive power as the 12V battery discharges; driven until the battery is depleted, it loses all motive power. Genesis first recalled 2023-2024 Electrified G80 cars in March 2024 (24V204 / 021G); in November 2024 it issued 24V868 (025G), which replaces 24V204 for 1,995 model year 2023-2024 Electrified G80s produced February 23, 2022 to August 22, 2024 and adds revised ICCU software with an LDC output-voltage soft start and improved radiator fan and water pump operation.

Recall 24V107 / 018G includes certain 2017–2019 G80 vehicles built March 17, 2016–January 4, 2019. Water can contaminate the starter solenoid in abnormally wet conditions, such as a flooded road, and cause an electrical short over time. An engine-compartment fire can occur while parked or driving. The July 2024 retailer notice reports 12 US thermal incidents across the whole campaign, not 12 G80 incidents specifically.

G80 owners report the center infotainment screen freezing, ignoring inputs, or rebooting. On 2017-2019 G80s with the 9.2-inch navigation unit, owners on GenesisOwners.com describe home-screen icons that highlight but cannot be selected, SiriusXM stuck on "Acquiring Signal," the navigation map disappearing, and the radio stuck on one station. Turning the car off or hard-resetting the unit cleared it only for a while. Owners passed on the navigation provider's explanation that downloads of SiriusXM Travel Link data cause the problem, and some had their Travel Link subscription suspended as a workaround. Owners also report that replacing the head unit did not always fix it. Some 2025-2026 G80s built June 3 to November 24, 2025, and some 2026 Electrified G80s, are under safety recall 26V019. A software error in the head unit (supplied by LG Electronics) writes HD Radio and analog radio data to the same memory location. That can make the head unit reboot, and the instrument cluster and center screen go blank for about 5-10 seconds with no warning. A blank cluster hides the speedometer, fuel gauge and warnings. Hyundai counted 237 U.S. reports before filing the recall.

Certain 2018 G80 (DH) sedans produced January 18, 2017 through June 5, 2018 have a front passenger Occupant Classification System control module that may have been programmed incorrectly. The system can detect an adult when the seat is empty, or fail to switch the front passenger airbag off when an infant or child is present - meaning the airbag can deploy in a crash when it should have been suppressed. The warning Hyundai lists is the "Passenger Air Bag OFF" indicator turning off, including when the seat is empty or a child or child seat is in it.

A small batch of 2018 G80 sedans left the plant with the front windshield and rear window bonded using incorrect primer, which may lose some of its glass bonding strength over time. Genesis warned that the glass could become detached while driving. The campaign is narrow: only 2018 G80s produced between February 14 and February 21, 2018 are covered (the same NHTSA campaign also includes certain 2018 G90s; 37 vehicles in total). Ask Genesis to confirm VIN eligibility and whether the glass replacement was completed; a build date alone does not establish repair status.

Recall 21V160 covers certain US-market 2017–2020 G80 vehicles and predecessor 2015–2016 Hyundai Genesis vehicles, with 94,646 vehicles combined. The ABS hydraulic controller may develop an internal electrical short and overcurrent, creating engine-compartment fire risk while parked or driving. The March 2021 filing states the root cause was still under investigation and lists smoke, burning or melting odor, and MIL or battery-light illumination as possible warnings. G70 is covered by a separate campaign.

On affected 2018–2020 G80 vehicles with the 3.3-litre turbocharged V6, prolonged engine-compartment heat can crack the left turbocharger oil-supply pipe. Oil reaching the exhaust manifold increases fire risk. The filing lists possible white smoke, a burning smell and oil leaking onto the ground as possible warnings. Recall 24V191 / 019G expands and replaces 19V538; vehicles repaired under that older action still require the new remedy.

Genesis TSB 21-AT-010HG (June 2021) addresses slipping, shift flare or harsh 2–3, 3–4 or 4–5 upshifts on 2017 G80 (DH) 3.8L and 5.0L cars produced 3/17/2016 to 1/11/2017 by replacing the 35R and 4&OD shift solenoids. It is not a universal solenoid remedy for later G80 generations.

Certain second-generation RG3 G80 sedans (2021 model year onward) may have a noise condition from the rear differential. Genesis TSB 23-DS-004G (August 2023), which also covers GV70 and GV80, has technicians check the G80 for a whine while coasting off throttle between about 50 and 25 mph. Depending on what the inspection finds, the bulletin repair tightens the rear differential lock nut or replaces the differential.