Flonie18

Picked up my loaner this am(2023 RX 350) and actually saw my F sport in the bay there. Its 7 hrs later and just got a call from Lexus service Dept saying they are still diagnosing what exactly is causing this "Hybrid Malfunction "issue. The Rep informed me the check engine light and various other alerts are still active. They are investigating problems with the 12V battery that is causing communication issues with the main system. They also told me they have contacted Lexus Corp concerning this issue. He was very calm and pleasant but sounded down a little and whern i asked he said this is such a rare occurrence that he is baffled to explain it. So.....tomorrow is another day.

bableck

Anyone experienced getting “System Malfunction - Visit Dealer’” and/or “Advanced Park Malfunction - Visit Dealer“ dashboard error messages on their new vehicle?

I took possession of a new 2024 RX350 Luxury car eleven days ago and have received both sets of messages twice in the first two days. The dealer found error logs and reset the dash on the first day of occurrence but messages reappeared the next day with the car going back to the dealer. The car has effectively been at the dealer the entire time. Latest status from service is a possible pin-fit issue on one of the electronic harness connectors going to the clearance sonar ecu (computer). They are trying to straighten and re-connect or may have to replace the harnes supposedly.

Anyone else having this type of failure?

STATUS UPDATE

Got the car back today after nine days at the dealer. Problem appears to have been solved. Supposed issue was:identified a pin-fit issue with one of the connectors that go to the clearance sonar ecu(computer).. at this point may be able to repair by adding more tension to harness or may need to be replaced.

They ended up being able to fix/straighten and reseat the connector rather than replacing the cable bundle. My fingers crossed that it doesn't return.

Flonie18

Well. today is day 5 of the dealership having my 2024 RX 500H F Sport and its a little concerning that yesterday no one even called me to update me and today i left a vm for the service Rep and no call back and now i just spoke to the original Sales person who sold me the car and he said he would go check on it and that was 3 hrs ago with no call back. I had a similar experience a few years back but that was GMC/Dodge....thats one of the reasons i chose to go with Lexus this time. How can a business sell you a $70K+ product and then not give you updates when you have problems within the first month?? Should i be going in there?
Should i speak to higher ups at the dealership or Lexus Corp?/....any advice folks?

bableck

Got the car back today after nine days at the dealer. Problem appears to have been solved. Supposed issue was:identified a pin-fit issue with one of the connectors that go to the clearance sonar ecu(computer).. at this point may be able to repair by adding more tension to harness or may need to be replaced.

They ended up being able to fix/straighten and reseat the connector rather than replacing the cable bundle. My fingers crossed that it doesn't return.

MrTuckers

Sounds like the same issue I had at the dealership before they shipped car out to me.

At first they couldn’t figure it out and supposedly said they had a Lexus rep come out and verify the issue. Probably the guy went there to log the issue and bring back findings to corporate and have manufacturing look into it before producing more RXs.

I haven’t seen my error messages since I last posted which I think is a good sign and I hope I don’t see them again ever.

Eagleboy99

I had this happen once. Will keep watching it.

John89

I would suggest, document every communcation you have with dealership, meaning if you call also send an email documenting it in writing as well. This will help in case it escalates further, showing the attempts and loss of service.
I wouldn't be shy either going to dealership, but speak with service manager directly instead of sales or service advisor.

Flonie18

After i edited some reviews on Yelp and Google adding the problems i was having with communication with dealership I got a call bright and early this morning from the Service manager apologizing for whats been happening and telling me they kept the car a few extra days to try to recreate the issue but could not. They told em it was a "Transmission Pump stuck OFF" and after the Lexus Rep walked them thru re-starting it..... it has been fine after 30 miles of test driving. Its a wait and see now situation as to how this goes with either never happening again or turning into a crap show....just worrysome but im hoping for the best. I am atta

ching the work order they gave me.

GlennAudio

I'll be watching this thread closely as my 500h has been at the dealership for a "system malfunction" since 11/25/23. =(

Longevite1

I got this error earlier, not sure what's going on, only error when shifted to R, no error when D. Drove home and try to put it to R again and no more error.

Klamalama

That may be dirt/mud over the rear camera lens. We've had a lot of rain recently and that message happened a couple of times. A wipe of the camera lens (by the unlock button) has fixed it.

Rokman68

Had the same message (System malfunction. Visit your dealer) recently and the dealership indicated it could be as simple as a sensor is covered when I took the vehicle in for 5K service. They also advised that a car wash should remedy the problem. Happened again and washing my vehicle resolved the issue. We had a snow and there was a film on the vehicle from the magnesium chloride put on icy roads.

Longevite1

I hope so.
I cleaned the lens even though the warning gone.

MrTuckers

Was driving just now at 25mph approaching a school zone and this amber light flashed on for about 1 sec and disappeared. I caught a glimpse of the System malfunction error message and it quickly disappeared but for sure it was an amber icon in the lower left corner. 2900 miles and only 1 year old. I hope this car doesn’t crap out soon.

GSY

Another follow up to the sensors, road dirt and car washes. It is somewhat obvious that road dirt and grime can block the sensors and cause malfunctions however I also had the same warning issues on both my Gen. 4 and Gen 5 RX's. I belong to an automatic car wash club with unlimited washes. As such I tend to have the car washed multiple times per week with the highest level club plan - which includes coatings, waxes etc. It takes 10 - 15 min. I am still not entirely sure however it seems that frequent applications of spray wax from the car wash may eventually coat the sensors making the computer think that they are dirty and thus causing the malfunction lights to come on. I have now taken practice to wipe down all exterior sensors and cameras after the car has come out of the tunnel and it seems fine. Still not entirely sure if this was the root cause of the issue but has been working for me.

PS - I know hand car washing is better but my time is very limited and in the Northeast with bad weather this is not always practical.