RX - 4th Gen (2016-2022) Discussion topics related to the 2016 and up RX350 and RX450h models

ICS Reprogram Service Campaign (certain 2017-2018 RXs)

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Old 04-24-21, 09:49 AM
  #91  
dibl
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I can't quite read the error, but I think the last line is "Visit Your Dealer". I think this error message has been the subject of another thread on this forum -- recommend you search this forum using the first part of the error message.
Old 04-25-21, 05:28 AM
  #92  
toyotaman7
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Was it raining or snowing?
Old 04-25-21, 10:42 AM
  #93  
eddie420
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Originally Posted by dibl
I can't quite read the error, but I think the last line is "Visit Your Dealer". I think this error message has been the subject of another thread on this forum -- recommend you search this forum using the first part of the error message.
The errors are tiny. I can make out the following:

1) Secondary Collission Brake System Malfunction
2) Parking (Support?) Brake Malfunction
3) AWD System Malfunction 2WD Mode Engaged
Old 04-25-21, 11:09 AM
  #94  
dibl
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Originally Posted by eddie420
The errors are tiny. I can make out the following:

1) Secondary Collission Brake System Malfunction
2) Parking (Support?) Brake Malfunction
3) AWD System Malfunction 2WD Mode Engaged
Here is one possible cause:

https://www.clublexus.com/forums/rx-...e-engaged.html
Old 04-25-21, 01:46 PM
  #95  
artem123
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I bet it is malfunctioning battery.
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Old 04-25-21, 04:24 PM
  #96  
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artem 123, I agree.
Old 04-26-21, 03:05 AM
  #97  
nhrc1
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Thanks for all replies
Those are the correct errors Eddie420.
Hopefully not a chewed wire dibl
Hope your both right Artem123 and Dhaka
Old 09-21-21, 02:08 PM
  #98  
kevinmlexu
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Default Seriously??

I've driven 4 RX 350s since 2010. Currently have a 2018. I now understand the gas cap being loose can cause the Engine light to come on. But create an ICS error, disable cruise control and cause an AWD error drive error indicating the car is now in 2WD mode? Funny thing is, my gas tank was last filled over a week ago and this is the first time it's happened. I currently live in NJ where the law believes people are incapable of pumping their own gas. So, it was the "full-serve" professional who caused the issue. Funny.
Old 09-21-21, 02:21 PM
  #99  
dibl
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That is weird, to have all those errors from a loose gas cap. I guess that's what you get when you put a computer in charge of the car ....
Old 05-18-22, 11:31 AM
  #100  
Badhobz
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Default All wheel drive malfuction is actually.....

So the wife calls me in a fluster, THE CAR IS BROKEN!!! and its displaying these messages




She drives it back home, i plug in the scanner and of course its just a gas cap issue. Retigthen gas cap, cleared the code with torque app and its all fine.

Why would Lexus scare housewives with such bs? if she didnt know any better she would have taken it into the dealer and they might have got her for 4 new tires, or some completely unnecessary service.
Old 05-18-22, 12:57 PM
  #101  
Quantum501
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Not sure if unrelated, but ICS malfunction I thought was a recall on the 2017 RX350. It is related to the Intelligence Clearance Sonar....auto brake in reverse when detecting an object.

I generally am not one to recommend going to the dealer, and I am a big fan of using scan tool to find out what is going on, but I think that you may have more than a gas cap (evap) issue.

Let us know
Old 09-17-22, 03:59 PM
  #102  
TriC
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Originally Posted by Badhobz
So the wife calls me in a fluster, THE CAR IS BROKEN!!! and its displaying these messages




She drives it back home, i plug in the scanner and of course its just a gas cap issue. Retigthen gas cap, cleared the code with torque app and its all fine.

Why would Lexus scare housewives with such bs? if she didnt know any better she would have taken it into the dealer and they might have got her for 4 new tires, or some completely unnecessary service.
Went through the same thing with our '19 today. Fortunately, the exact same codes as yours were shown so it was an easy fix. Good thing too since my wife is headed out of town in it tomorrow.

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Old 03-17-23, 02:17 PM
  #103  
Dpmidkiff
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Default Multiple malfunction lights

I have been having the same periodic issue. New battery last summer. Ok for a while then started again. Replaced lane assist system for $1200. NOPE. Happened again same day I picked up car. Then they said loose battery attachment. NOPE. Happened again week later! Can’t take it in til light is on again. I have had electronic parking brake, cruise control, ABS and parking assist malfunctions. Anyone have an answer???
no wires eaten. Car in garage
Old 03-17-23, 03:07 PM
  #104  
mkbruce
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Many times a single point of failure will cause multiple warning lights due to the way systems interact. Look for common factors bewteen all the warning. One suspect would be wheel speed sensors as they affect brakes and AWD.
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Old 03-20-23, 08:01 AM
  #105  
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I had similar errors when my wires got chewed. I was able to drive to dealer, slowly!


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