Some things that are giving me concerns on my 2023 GX Luxury trim, not fridge cold AC and feedback in brake/acceleration pedals at low speeds

[Arailt]

Mine has no problem cooling down the interior pretty quickly in the Texas sun. I leave it on Auto, Rear on, but 3-zone disabled. It's better than my wife's X5.

I find it does cool much faster if you're driving vs cold starting and letting it sit for a while.

 

[cfsds]

Agree -- sounds like it's broken. My guess is that the blend door is somehow not working correctly.

 

[Acrad]

I can turn my ‘12 into a chest freezer with the 3-zone on max in 90-100 temps… don’t really travel in areas much above that.

#HVAC - #Air #Conditioning / #Heating - Troubleshooting, Questions, #Diagnostic - ClubLexus - Lexus Forum Discussion

GX - 2nd Gen (2010-2023) - #HVAC - #Air #Conditioning / #Heating - Troubleshooting, Questions, #Diagnostic - How can I control and ensure the kids stop messing with the rear climate settings. Toyota highlander and sequioa let's you. I have a 2014 GX Lux Thanks

www.clublexus.com

https://lexusgxor.com/_media/general:2019-uae-gx460-brochure.pdf

 

[khalid7412002]

Mine has no problem cooling down the interior pretty quickly in the Texas sun. I leave it on Auto, Rear on, but 3-zone disabled. It's better than my wife's X5.

I find it does cool much faster if you're driving vs cold starting and letting it sit for a while.

I just did another test today after not driving my car for about two weeks and interestingly enough, it cooled my car down quickly and using the acurite gauge holding it to the vent, the temp read low 60s, and finally felt cold to my hands.

But, I noticed that after I parked the car, but left it running with the AC on, I was looking in the engine bay to see if I can notice any leaks, but I noticed that there was no dripping underneath the car on the passenger side.

Every car I have ever owned would drip with the AC on, but I saw nothing underneath my car after 15 mins of having the car running and AC on.

I'm not very knowledge about overall car mechanics, but shouldn't there be water dripping under my car with the AC on?

 

[Acrad]

You should be seeing drips front behind right front wheel and behind the right rear if you have 3 zone.

 

[khalid7412002]

You should be seeing drips front behind right front wheel and behind the right rear if you have 3 zone.

I waited about 10 mins but didnt see anything dripping in the rear nor the front.

I was using 3 zone AC with my car parked with engine and AC running at full blast

 

[Hehena]

I have to admit if the problem is this noticeable then why won't Lexus do anything?

 

[khalid7412002]

I have to admit if the problem is this noticeable then why won't Lexus do anything?

I had them change the compressor, but the dealership system were down during those few days they had my car and I don't know if I somehow got lost in the shuffle. They were supposed to change the little foam pad that is on the rear bumper by the tab to get to the spare tire. They damaged it on a prior visit when they were rotating my tires. That part was not changed during the same visit where they were supposed to change the compressor.

Also, I want to gather more data from people here regarding how they feel about their AC and now the lack of dripping in my car before I take it back so i can have evidence.

Yesterday test was the first time the car felt cold after driving it for 10 minutes, but then no dripping from AC condenser in front or rear.

 

[Acrad]

Mine leaves normal puddles everywhere but does vary on humidity as well. Just yesterday it was over 90 and in mine with temp set around 68-70 it felt really cold and the wife was starting to bundle up

Wonder if your charge is borderline low?

 

[Arailt]

Just yesterday it was over 90 and in mine with temp set around 68-70 it felt really cold and the wife was starting to bundle up

Same. It's high 90s here all summer long and well into the 100s sometimes. I usually have to set mine at 76-78 or my wife and kids need blankets.

 

[windnsea00]

I haven't found the AC to be overly impressive on my 2018, I had it recharged a year ago, and it was a bit low on freon. Once again, it does an okay job but not like some cars that will freeze you out.

 

[Acrad]

I haven't found the AC to be overly impressive on my 2018, I had it recharged a year ago, and it was a bit low on freon. Once again, it does an okay job but not like some cars that will freeze you out.

Do you have a 2 or 3 zone model?

 

[windnsea00]

Do you have a 2 or 3 zone model?

3 Zone.

 

[Acrad]

I’ll dig up FSM temp specs on what temp you should be seeing out of the vents. My specific vehicle has the coldest AC of any vehicle I’ve owned in the last 30 years. It has also never required any recharging.

 

[Hehena]

My specific vehicle has the coldest AC of any vehicle I’ve owned in the last 30 years. It has also never required any recharging.

I've experienced this as well.

 

[Rednexus]

If a recharge is needed, it means there is leak in the system. If the system is recharged without fixing the leak it will just bleed down again.

 

[windnsea00]

If a recharge is needed, it means there is leak in the system. If the system is recharged without fixing the leak it will just bleed down again.

Hmm, maybe I have a very small leak somewhere.

 

[Chronicle]

I've had the chance to drive mine a bit more. There is no rhyme or reason to it so far. On the last drive the floor vents were cold on 72 and 73 vs last trip with the outside temp in the 90's the floor vents were warm on 72 and cold/coldish on 71 but that made the face vents too cold.

 

[Acrad]

I wonder if anything is the system (other than the refrigerant) changed when the interior/dash was updated for 2022.

2021 was the cutover model year for R1234yf

 

[Acrad]

Here are data list ranges for HVAC if you have Techstream setup