2024 RX 350 Premium message of system malfunction

[Jejed12]

I get a system malfunction message and it says to see the Dealer. Took the car to the Dealer,  Dealer looks at the car and says no issue found. I keep getting this message. Has anyone experienced this? How was it resolved/ Thanks.

[J A V]

Are you commenting about the "shift system malfunction" warning that comes on very frequently in cold weather?

[Alikuteg]

Sysytem malfunction keeps popping out every now and then after 12000 miles. Took it to the dealer and they said as of now no fix, they say. Is there a recall for the 2024 lexus rx 350 awd regarding its computers?

[JacksDad]

I had this problem last winter (23-24) when I had not driven the car for an extended period during cold weather.  I took it to the dealer. Techs did find fault codes in memory, but said it could not be corrected unless I was able to bring it in with the indication on the display (really?). 

So this January I scheduled an early morning appointment during a particularly cold stretch of weather.  The inication was there that morning as I drove to the dealer.  I did not pull into their garage service enterance, left it running and had the service advisory come out to see the indication.  

She wanted to get a tech to look at it, but after some checking said the regional service manager was planning to be at their dealership that day (my luck).  She indicated this is an issue Lexus was aware of and had been working on a corrective action.

When I returned that day I was told the issue had been corrected.  Appearently there is a software update that has not yet been released, but the regional service manager authorized it to be installed on my vehicle.  Troubleshooting also found a bad cell in my battery, so a new battery under warrenty. The cam lock software service bulletin update was also completed and they filled the tank with gas.

I have not had the shift system malfunction indication since this software update was completed, even in cold weather and after a few days of not using the vehicle.  Looks like there is a corrective software update coming.