Accessory Bus Remain On after Ignition switch off
Thread Starter
10th Gear
Joined: Jun 2024
Posts: 11
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From: Georgia
Accessory Bus Remain On after Ignition switch off
Hello everyone, I have '24 LC500 and I am wondering if there is any way to have the accessory power remain "on" after a drive and parking and shut off of engine. In my old Mercedes after driving and parking, the accessory (radio and media player) would not shut off until after you open the door. With my LC500 I have to sit in the garage with the engine running in order to "finish listening" to a song, LOL. I would love for there to be a way to park the car, shut off the ignition, with the radio still "on" before I open the door! Anyone got any ideas?
Thanks!
Thanks!
5th Gear
Joined: Feb 2013
Posts: 5
Likes: 4
From: Tx
Hello everyone, I have '24 LC500 and I am wondering if there is any way to have the accessory power remain "on" after a drive and parking and shut off of engine. In my old Mercedes after driving and parking, the accessory (radio and media player) would not shut off until after you open the door. With my LC500 I have to sit in the garage with the engine running in order to "finish listening" to a song, LOL. I would love for there to be a way to park the car, shut off the ignition, with the radio still "on" before I open the door! Anyone got any ideas?
Thanks!
Thanks!
Pole Position
Joined: Feb 2012
Posts: 2,168
Likes: 930
From: MA
Hello everyone, I have '24 LC500 and I am wondering if there is any way to have the accessory power remain "on" after a drive and parking and shut off of engine. In my old Mercedes after driving and parking, the accessory (radio and media player) would not shut off until after you open the door. With my LC500 I have to sit in the garage with the engine running in order to "finish listening" to a song, LOL. I would love for there to be a way to park the car, shut off the ignition, with the radio still "on" before I open the door! Anyone got any ideas?
Thanks!
Thanks!
Get inside the house and search for the song on YouTube, Spotify, Tidal, and the other hundreds way to can listen to a song nowadays.
Lexus Test Driver
Joined: Aug 2003
Posts: 7,648
Likes: 1,385
From: Florida
I usually back into my parking spot, leaving the car in Reverse and press the power button. You can do this in any gear other than Park and it'll let you finish a phone conversation or listening to your song. Just don't forget to place it into Park and press the PWR button again to turn off the car.
In other cars (including Lexus!) you can accomplish it by turning car off while in N, or long pressing the power button, but none of these typical tricks seem to work in the LC.
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From: TN
5th Gear
Joined: Feb 2013
Posts: 5
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From: Tx
This don't work in my LC. In my LC if you press the power button from any gear other than P it puts the car in P and turns off by itself. This is how I turn the car off, I can't tell you the last time I used the P button at all.
In other cars (including Lexus!) you can accomplish it by turning car off while in N, or long pressing the power button, but none of these typical tricks seem to work in the LC.
In other cars (including Lexus!) you can accomplish it by turning car off while in N, or long pressing the power button, but none of these typical tricks seem to work in the LC.
I however, had the unfortunate situation of being in a rental one time a Ford escape if I remember that would do the same thing, pressing the power button it would place the vehicle in park however, it left the radio and phone function working.
Last edited by AFirWraith; Oct 17, 2025 at 12:33 PM.
Lexus Test Driver
Joined: Aug 2003
Posts: 7,648
Likes: 1,385
From: Florida
Sorry to hear that, I'm in an IS and was hoping it would work the same for you guys.
I however, had the unfortunate situation of being in a rental one time a Ford escape if I remember that would do the same thing, pressing the power button it would place the vehicle in park however, it left the radio and phone function working.
I however, had the unfortunate situation of being in a rental one time a Ford escape if I remember that would do the same thing, pressing the power button it would place the vehicle in park however, it left the radio and phone function working.
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Joined: May 2010
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From: NH
Hello everyone, I have '24 LC500 and I am wondering if there is any way to have the accessory power remain "on" after a drive and parking and shut off of engine. In my old Mercedes after driving and parking, the accessory (radio and media player) would not shut off until after you open the door. With my LC500 I have to sit in the garage with the engine running in order to "finish listening" to a song, LOL. I would love for there to be a way to park the car, shut off the ignition, with the radio still "on" before I open the door! Anyone got any ideas?
Thanks!
Thanks!
Pit Crew
Joined: Feb 2024
Posts: 195
Likes: 217
From: SC
I usually back into my parking spot, leaving the car in Reverse and press the power button. You can do this in any gear other than Park and it'll let you finish a phone conversation or listening to your song. Just don't forget to place it into Park and press the PWR button again to turn off the car.
I agree, this is an annoying non-feature.
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