Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Connected Car Services functions. This may be due to an irregular disconnection on Verizon’s communication network. Follow the procedure in this TSB to reestablish the connection by resetting the AVN unit.
full bulletin at NHTSA ↗2018 Genesis G80 electrical problems
severe 18 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Complaints
18
Recalls
0
Avg fix
$850
1crash
What stands out
Electrical accounts for 20% of all owner complaints filed against this vehicle, across 9 categories tracked.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Certain Genesis vehicles may experience an inoperable horn from moisture or carbonization at the contact point. This bulletin provides a guide to inspect and replace the horns.
full bulletin at NHTSA ↗Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon's communication network. If you are experiencing issues with remote commands, or other Bluelink services, please see the instructions below to reestablish the connection via the AVN pinhole reset method.
full bulletin at NHTSA ↗Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon’s communication network. Follow the procedure in this TSB to reestablish the connection via the AVN pinhole reset method.
full bulletin at NHTSA ↗When asked to provide the Modem Information, the Universal Subscriber Identity Module (USIM) information is not available. This bulletin describes the 3-part Software to correct this condition and activate Genesis Connected Services (GCS).
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners report widespread infotainment malfunction—GPS, radio, and electronic systems freezing or displaying wrong information within minutes of startup, persisting for weeks. Dealers blame SiriusXM, but owners found no evidence of carrier outages and remain concerned about deeper electrical system failure.
The most serious issue: NHTSA Recall 24V107000 (electrical system fire risk) has gone unrepaired for over a year at multiple dealerships because manufacturer parts remain on backorder. Genesis advises parking affected vehicles outside. Owners also cite delayed brake system recalls (201 and 006G) and other fire-risk recalls for starter and turbo oil lines—parts unavailable or unaddressed.
A/C blower fails to cool after about an hour of use or in sustained heat, blowing hot air instead—a known issue across 2017–2020 G80s that Genesis has not recalled. The oil pressure sensor triggers false warnings at idle despite normal conditions; owners quoted $3,000 to replace it, though most vehicles are past warranty. A rear door lock actuator can fail completely with no emergency release, trapping occupants. Reverse lights don't illuminate, and one vehicle failed to start at 80,000 miles, requiring roadside assistance and a boost charger.
Same Genesis G80 electrical reports on nearby years: 2017
Failure modes owners describe
Infotainment/GPS System Freeze and Malfunction
GPS, radio, and electronic notification systems freeze or display erroneous information within minutes of startup. Issue persists for weeks; dealers blame SiriusXM but owners report no evidence of SiriusXM outages. Owners express concern this signals broader computer/electrical system failure.
When: Within minutes of startup; ongoing for several weeks
Symptoms owners cite: GPS freezes; Radio malfunctions; Electronic notification system gives erroneous information; Systems freeze or display errors soon after car starts
Recalls/TSBs owners mention: Dealer claims issue is with SiriusXM and out of dealer control
Electrical System Fire Risk (Recall 24V107000)
Owners report NHTSA Recall 24V107000 for electrical system has not been performed for over a year at some dealerships. Manufacturers warn of potential fire risk and advise parking car outside. Repair parts remain on backorder across multiple locations.
When: Recall issued; parts unavailable as of complaint date
Symptoms owners cite: No failure reported by those awaiting recall; Vehicle at risk of fire per Genesis advisory
Codes mentioned: 24V107000
Repairs/costs cited: Recall parts on backorder; manufacturer unable to supply
Recalls/TSBs owners mention: NHTSA Recall 24V107000 issued for electrical system fire risk; Genesis advises parking outside; parts unavailable
Oil Pressure Sensor Intermittent False Warning
Oil pressure warning light illuminates intermittently at idle and low RPMs despite normal oil levels and pressure. Owners cannot determine if warning indicates actual problem or sensor fault. Genesis quoted $3,000 repair cost. Issue affects 2017–2019 models, most beyond manufacturer warranty.
When: At idle and low RPMs; occurs intermittently
Symptoms owners cite: Oil pressure warning light comes on at idle; Light turns off when moving; Light illuminates suddenly without obvious cause
Repairs/costs cited: Sensor replacement quoted at approximately $3,000; requires motor access
Air Conditioning Failure in Hot Weather
A/C blower fails to produce cold air during prolonged use (1+ hour) or in sustained hot conditions. Heat continues to blow instead. Issue affects multiple G80 models from 2017–2020. Genesis is aware but has not issued recall.
When: After approximately 1 hour of A/C operation or in hot weather
Symptoms owners cite: Blower does not produce cold air; Hot air blows from A/C vents; No warning messages; System fails in very hot weather
Recalls/TSBs owners mention: Genesis Corporate aware of issue but no recall issued
Rear Door Lock Actuator Failure
Rear left door lock actuator fails; door cannot be opened from inside or outside. No emergency release available. Known issue across G80 and other Hyundai/Kia models. Occupants could be trapped in vehicle during accident.
Symptoms owners cite: Door will not open from inside; Door will not open from outside; No emergency release mechanism
Engine Start Failure
Vehicle fails to start; requires roadside assistance and boost charger to restart. Check engine light illuminates and trunk open message displays. Occurs at approximately 80,000 miles.
When: At approximately 80,000 miles
Symptoms owners cite: Vehicle will not start; Check engine warning light illuminated; Trunk open message displayed
Repairs/costs cited: Roadside assistance required; boost charger used to restart
Recalls/TSBs owners mention: Dealer informed owner of Recall 24V107000 (Electrical System); parts on backorder
Brake System Recalls Delayed (201 and 006G)
Anti-lock braking system recalls 201 and 006G not performed; dealers cite parts unavailability. Failure to perform poses risk of brake failure and fire.
Symptoms owners cite: Brakes not serviced per recall
Codes mentioned: 201, 006G
Repairs/costs cited: Parts unavailable per dealer
Recalls/TSBs owners mention: Recalls issued for ABS fire and brake failure risk; parts unavailable
Reverse Light Failure
Reverse lights do not illuminate when vehicle is placed in reverse gear. Vehicles behind cannot see that vehicle is reversing until motion is observed.
Symptoms owners cite: Reverse lights do not illuminate
Starter and Turbo Oil Supply Line Fire Risk Recalls
Owner reports two safety recalls—one for starter and one for turbo oil supply line—both with fire potential. Manufacturer has not remedied recalls in timely manner.
Symptoms owners cite: Fire risk per recall
Recalls/TSBs owners mention: Recalls issued for starter and turbo oil supply line fire risk; not completed in timely manner
Synthesized from 18 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 3 most recent
There are two safety recalls, one for the starter and one for the turbo oil supply line, both have potential for a fire concern and the manufacturer has failed or is unable to remedy this safety recall for my vehicle in a timely manner.
For over one year we have been in contact with Round Rock Genesis in Round Rock, Texas about recalls # 254 & 018G (NHTSA Recall # 24V107000). Our Genesis G80 is now 6 years old. Failure to address this repair poses a risk of the car bursting into flames with no warning; Genesis advises parking the car outside. These recalls have not been performed because the dealership claims that they cannot…
A/C does not work as blower will not put out cold air. During hot days in Florida with children and elderly in the car this poses a risk to our health. This happens when A/C has been on for approximately one hour. No warning messages whatsoever. This has been reported by many Genesis G80 owners who own a G80 from the years 2017 - 2020. Genesis Corporate is aware of the problem but has not…
Had electrical trouble with your 2018 Genesis G80?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2018 Genesis G80?
It's a meaningful issue. 18 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Based on the 18 complaints filed, electrical issues most often appear around 51,000 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2018/Genesis/G80.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.