Sudden Loss of Power or Limp Mode
- Thread starter Ron
- Start date
Update - Replaced the high pressure fuel pump in the engine and changed the oil since some gas had been mixed into the oil.... said it was a one off issue according to Toyota technical support. Picked it up yesterday after a week at the shop.
The shop told me that the computer is programmed to throw off all the warnings lights (hybrid system failure, check engine, etc. etc.) if anything is off with the engine and does not necessarily indicate that hybrid is faulty.
The shop told me that the computer is programmed to throw off all the warnings lights (hybrid system failure, check engine, etc. etc.) if anything is off with the engine and does not necessarily indicate that hybrid is faulty.
Thanks for the update!
Thanks for the update. Glad nothing really big and you have your truck back. Sounds like these lights/shutdowns, while very inconvenient, are a protective mechanism. Obviously a huge pain in the a** though.
Its an evolving technology for sure.
Software, PLcs and CPUs are a big black hole. If the LC had a better regular engine option like the 550GX 6 cylinder that would be my pick, cant get anything else in the LC so we shall see.
Technology infant mortality rate can be a real bitch when its yours.
Good luck.
Software, PLcs and CPUs are a big black hole. If the LC had a better regular engine option like the 550GX 6 cylinder that would be my pick, cant get anything else in the LC so we shall see.
Technology infant mortality rate can be a real bitch when its yours.
Good luck.
True. It's been enough of an issue for other folks on the forum here to have me eyeing the 2025 GX550 OT+.
So the other day I pulled my 2024 LC out of the garage. The dash went nuts and flickered the the vehicle went completely dead. This was very typical of a dead battery in a modern vehicle. I crawled into the back of the vehicle and checked the voltage of the 12v battery. It was fully charged but vehicle was still dead. Tried jumping the battery at the 12v battery. Still nothing would come on when pushing the start button. Called roadside assistance and was told all they could do was send someone to jump start the vehicle. Advised that the vehicle was at my shop and I had tried jumping it already and I could call the nearest dealer myself. It was late afternoon so I waited until the next morning. Vehicle was still dead. Still 12+ volts at the battery terminals. I got my volt meter and opened the fuse center under the hood where the jump start terminal was located. When I checked the voltage at the jump start terminals it read only 5.3 volts for less than two seconds then the voltmeter jumped to 12.6 volts immediately. Got in the vehicle and everything was working perfectly. Vehicle started and has been running fine the last four days. I haven’t called the dealer as I don’t think they will have any clue about what happened. I think the 12v battery is defective or somehow the module that regulates the battery voltage has some sort of glitch that caused this issue. Any electrical engineers on here that could explain?
Side note I own two automotive repair shops in the Austin area. Collectively we have nearly 350 years of experience in repairing vehicles.
Side note I own two automotive repair shops in the Austin area. Collectively we have nearly 350 years of experience in repairing vehicles.
I’m not a mechanic, or an electrical engineer, but I did stay at a Holiday Inn Express a few days ago…
Could there be a loose connection somewhere?
Could there be a loose connection somewhere?
It sounds like you inadvertently purchased a LR and not a LC.
I may have had a similar incident driving through Elizabeth, CO. I was in Drive crossing a bridge eith cement side barriers when my Cruiser suddenly slowed down and seemed to go into a limp-home mode. It would not accelerate and only creep forward until I could safely pull off the road past the bridge. Upon restarted my Cruiser, it was fine and has not misbehaved since. I drove it to a dealer and they ran diagnostics which included being able to examine the driving history. They were able to observe the vehicle operating modes at the time of the incident. Amazing what capabilities modern vehicles have! They discovered that the vehicle recorded having been shifted into reverse at that time and insisted that I had somehow knocked the shift lever. I know I did not as I am a 2 hands on the wheel driver particularly if I am going through my small town with known crosswalks and the like. I guess I should be thankful it didn't happen on an open 2 lane highway. It has never happened since. This occurred in February 2026.
Glad you were in a quasi safe spot.
You never know when even a new vehicle can have a hiccup.
Sorry to read about your issues. I have nothing on my cruiser that is non OEM. So, have not experienced anything unusual so far. Mileage 21000+. 2024. LC LC with premium package
Similar threads
