Thanks for the advice. Will be traveling next week and will probably need it.
air condition problems
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Same exact problem. Brought G80 to Key Genesis in Jacksonville & left it for several days & they couldn't replicate. You would think Genesis would be all over this for their "Luxury" brand. Very disappointed. Also, can't understand how this could be a Freon overfill problem as it certainly seems related to heat to me. If overfill problem, wouldn't it occur at all times rather than only when it gets hot?
Freeze up number 4. Same as above after 2-3 hours on the road. Dealer now has evaporator coil sensor on order. Head tech says this has happened on 4 Hyundai Tucsons (same engine?) and have changed out and none have returned with same problem. Says it's South Louisiana heat and humidity. Will see.
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We are having the exact same problem on our 2018 G80. After about 1 hour of driving, cold air flow stops. The only way to get it back is to shut off the Climate control system for about 5 minutes then it comes back on full blast. Just spoke with the factory. They said they are aware of the problem but have no fix. Hoping someone on here finds a solution that we can take to the dealer and have them try. They do not want to drive the car for 1 hour to see if what they are doing has fixed it.. So far, nothing has worked after 2 years going back to the shop and the last time spent 1 week there.
Any more info on evaporator coil sensor replacements.
Mine has been on back order for 3 wks.
Does it fix the problem.
Thanks
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Hello gang,
I have this issue also on a 2018 G80. I live in Miami so imagine my pain. The AC stops blowing after about an hour driving. it sounds like it's clogged. only a tiny amount of cold air comes out. In an attempt to fix it while driving on the highway I set both driver passenger temps to full heat and the fan to max. Oddly though the air never got hot. it was just warm like the outside air. then after 5 minutes full max heat i brought the temperature back down to 72 and the cold air started flowing. this fix seems to work every time. however, a few days ago i got an engine code which reads "Thermostat Heater Control Circuit/Open". there also seems to be more cold air coming out my passenger side than the driver side unless when both are set to 74. however, when i bring down the temp under 72, the driver side vents start blowing cold hair matching the passenger side. it's all very weird. I have an appointment at the dealership next week. i'll report back.
I have this issue also on a 2018 G80. I live in Miami so imagine my pain. The AC stops blowing after about an hour driving. it sounds like it's clogged. only a tiny amount of cold air comes out. In an attempt to fix it while driving on the highway I set both driver passenger temps to full heat and the fan to max. Oddly though the air never got hot. it was just warm like the outside air. then after 5 minutes full max heat i brought the temperature back down to 72 and the cold air started flowing. this fix seems to work every time. however, a few days ago i got an engine code which reads "Thermostat Heater Control Circuit/Open". there also seems to be more cold air coming out my passenger side than the driver side unless when both are set to 74. however, when i bring down the temp under 72, the driver side vents start blowing cold hair matching the passenger side. it's all very weird. I have an appointment at the dealership next week. i'll report back.
Thanks for including me in this forum! I appreciate all the input regarding a/c problems with Genesis G80, especially I am in the Fort Lauderdale area and it runs year-round..
My 2018 G80 3.8 has been "rumbling" near the glove compartment and blowing warmer air on a really hot day, It also takes 4-8 minutes minimum to begin blowing cool air if parked in the sun.
In the shop today for regular service and "check engine" light on. They found the following:
1. Diagnostic code P0598 which showed thermostat issues, specifically "thermostat heater control circuit low" and coolant leaking from the electrical connector. Write up desk said this problem will affect system performance as temp climbs and engine has to work to cool itself. Hence, he feels this is the a/c problem. No part in stock; part ordered; covered under warranty, return for repair next week.
2. The "rumble" was diagnosed as debris/leaves found in the blower motor fan area. They removed the a/c blower fan motor, cleaned out debris, reinstalled, replaced cabin air filter, and system is as quiet as can be and air is cold.
Hopefully the thermostat replacement next week will further correct the issue.
My 2018 G80 3.8 has been "rumbling" near the glove compartment and blowing warmer air on a really hot day, It also takes 4-8 minutes minimum to begin blowing cool air if parked in the sun.
In the shop today for regular service and "check engine" light on. They found the following:
1. Diagnostic code P0598 which showed thermostat issues, specifically "thermostat heater control circuit low" and coolant leaking from the electrical connector. Write up desk said this problem will affect system performance as temp climbs and engine has to work to cool itself. Hence, he feels this is the a/c problem. No part in stock; part ordered; covered under warranty, return for repair next week.
2. The "rumble" was diagnosed as debris/leaves found in the blower motor fan area. They removed the a/c blower fan motor, cleaned out debris, reinstalled, replaced cabin air filter, and system is as quiet as can be and air is cold.
Hopefully the thermostat replacement next week will further correct the issue.
I just posted my visit results with Rick Case Genesis, with much the same problem. Please read my post and perhaps that will help you. Also, when my former Benz blew warm air on the driver side, it was corrected by "rebooting" the system at the dealer.......it can also indicate low charge.
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I have this exact same problem with my G80. Twice on vacation the air conditioner has stopped blowing. There was rain both times. They need to figure this out, very embarassing and HOT to have a car under 30,000 miles with no air riding down the interstate in 90 degree weather with the windows down sweating. ???? I can no longer trust this car with friends or family for comfort. Ridiculous!
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I've had this problem for the entire time I've owned my 2018 G80 sport here in Hot Texas. It has been to the shop multiple times for it. Same symptoms everybody describes. For me, 45+ minutes driving down the freeway, AC stops blowing cold air. I can tell it's happening because with the system set on Auto and about 72 degrees, everything is fine for the first 45 minutes or so. Then my wife and I look at each other about the same time and say "seems like it's getting pretty warm in here". Reach down feel the air coming out and it's not. Or very weak, and not cold. No amount of changing switch positions/settings makes a difference for us. Tried everything. Had it in the shop multiple times. At first Genesis dealer claimed ignorance of this issue. They changed cabin filters, spit on it, banged things with a mallet or whatever else they do when they have no idea.
Then after a couple of years, they said "oh yeah" Genesis figured it out. Said it is a bad thermistor. And they replaced it. No Go. Same problem. It's not every time. Only on the hottest of days when I still have a long way to go.
What I have figured out is I can turn off the A/C system completely, roll the windows down. Wait 15 minutes, and turn it back on and it works fine. Sometimes for several hours. I've tried leaving it off for lessor times, but anything less than 10 minutes certainly doesn't work for me. Sometimes as early as 12/13 mintutes is enough. But I've found 15 always works.
Stupid Genesis.
Then after a couple of years, they said "oh yeah" Genesis figured it out. Said it is a bad thermistor. And they replaced it. No Go. Same problem. It's not every time. Only on the hottest of days when I still have a long way to go.
What I have figured out is I can turn off the A/C system completely, roll the windows down. Wait 15 minutes, and turn it back on and it works fine. Sometimes for several hours. I've tried leaving it off for lessor times, but anything less than 10 minutes certainly doesn't work for me. Sometimes as early as 12/13 mintutes is enough. But I've found 15 always works.
Stupid Genesis.
changing evaporator sensor did not work. have a call into Genesis Customer Care national rep. doubt he/she can fix it. wondering if possible to change out entire a/c system? or change out entire vehicle?
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Have had nothing to update since my posts in December 2021. No positive results from any dealers or Sanford Hdqtrs. Finally got positive communication from Genesis National Headquarters in Fountain Valley, Calif. Received approval to have system flushed and refilled. Just completed a hot high speed trip from Florida to Pennsylvania with NO problems. Seems that this has worked for some but not all. Not a clue why.
In order to compete as a luxury car, Genesis MUST have their own retailers! Lexus owners do not buy and service their cars at Toyota dealerships. Nor does Audi owners go to VW or Infiniti to Nissen. Most Hyundai dealers are not equipped to handle the amenities offered to Genesis owners. Many don’t want to deal with Genesis stating they sell 17 Hyundai’s to 1 Genesis.
In order to compete as a luxury car, Genesis MUST have their own retailers! Lexus owners do not buy and service their cars at Toyota dealerships. Nor does Audi owners go to VW or Infiniti to Nissen. Most Hyundai dealers are not equipped to handle the amenities offered to Genesis owners. Many don’t want to deal with Genesis stating they sell 17 Hyundai’s to 1 Genesis.
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I have had the problem for several years on my G80. The last time I went to the St. Augustine, Fl. dealer they said that Genesis really does not have a fix. She said they had replaced evap. sensors and thermister on other Genesis and that did not work. Their recommendation from Genesis was to put the control on "recycle". This worked some times but it got very hot until the a/c was cooling again. Someone on this forum said that changing the coolant worked? Any others have the coolant replacement fix the problem?
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Our 2018 G80 has the same symptoms as everyone here is reporting: A/C blows cold for about an hour then stops blowing. No air, no chilly. Happens most often on longer trips, when it's over 80F and somewhat humid. Took it to the Genesis dealer/service center in Bloomington Minnesota. Service rep just called and said he knows what's happening - with high outside temps and high humidity, the condenser basically freezes over, reducing the air flow and preventing the chilly air from blowing into the ventilation system. Solution: pull over, let the condenser warm up so the ice melts and the system will return to normal operations. Based on reports from other owners, I'd say 15 minutes should do it. I suspect this is a design issue therefore no changes to the climate control system or engine nor replacement of any parts will "fix" this problem. Just thought I'd share.
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15 minutes usually works for the ice to melt - problem is it just ices up again in another 40-50 miles. Doesn't anyone think it is strange that the bulk of this problem is involving the 2018 G80's. What's different about this A/C system???
Very good question. As stated previously--the "Thermister was changed and freon level lowered. I dont think this will do it. I have not been on the road since the service.
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FYI - I contacted Genesis USA in Calif. They sent me a Genesis Gift Card to pay for the flushing and refilling of the system at my local Hyundai dealer (who refused to pay for it). I just completed a road trip from Florida to PA and back in very hot weather and had NO problems!! Seems to have solved the problem.
Wonder if the supplier of the Freon shipment to a Genesis plant in 2018 had a contaminated batch? My local service manager stated that would be impossible. I doubt that's impossible!
I had same issue with A/C 13 months ag when driving to Florida. Dealer replaced fan. Now 13 months later occurring again. Dealer in New Jersey advises one year warranty plus the work done at different Genesis dealership not his responsibility. Hard for me to accept this as this is the main reason to have work done at a Genesis dealership versus local repairshop who is less expensive
Based on all the below with same problem Genesis has a flaw in multiple vehicles and needs to find core issue here and recall the vehicles for the fix
Comments or other deals?
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