2017 Lexus LC Hybrid Navigation System Issue at 47,737 Kilometers

Hey! I feel your pain. I own a 2014 Lexus IS, and I had the same heck of a problem a while back. Navigation went for a toss - zero communication. Took me some time figuring out it was a CAN BUS issue. Your symptoms sound like mine, and if that's the case, it could indeed be a CAN BUS problem or maybe even a MOST bus issue. It ain't much of a picnic, I won't lie. It can be tricky 'cause it's about faulty or no communication between car computers. In my case, took her to a reliable garage that I trust. A thorough diagnostic test was run. Turned out, there were broken wires leading to the navigation unit that killed the connection. In a nutshell, they had to fix a section of the CAN BUS wiring, replace a couple of connectors and do a complete reset of the system. It was a bit of a serious issue given the role played by CAN BUS in the smooth operation of various vehicle subsystems. But thankfully, these guys knew their stuff, and once the problematic wires got sorted, everything was back running smooth as clockwork. Car's been good as new since then, touch wood. So, long story short, if it is a CAN BUS or MOST bus problem, get your car to a skilled professional who knows his way around these systems, and your beast should be up and roaring in no time. Best of luck!

Hey there, thanks for the detailed response. Sounds like you've had quite the ride with your Lexus IS. That CAN BUS issue seems like a complex thing for my LC, but your experience is heartening. Could you ballpark how much dint it put in your pocket to have the wiring and connectors fixed? Also, have you run into any other problem in your IS since getting this sorted? Cheers for the help!

Hey, yeah those CAN BUS issues can sure give you a ride. Fun it is not. As for the cost, it stung my wallet a bit - about 235€. That was the total charge to fix the damaged CAN BUS or MOST bus. Made peace with it considering how integral it is for the car's operation, ya know? Since the fix, I haven't had a similar problem or any error messages popping up. Everything's been working like a charm, thank God. The car's been purring like a kitten since that trip to the mechanic. Hope that helps! All the best with your LC!

Hey, thanks for the insight! You've certainly provided me with a better understanding of this CAN BUS headache. While €235 does seem a tad steep, I suppose it's a small price for a smoothly running machine. Your positive post-repair experience gives me hope. Fingers crossed my LC roars back to life without any additional problems! Thanks again really appreciate the assist! Stay safe and enjoy the smooth rides with your IS!