IS300 boot lock problem

[Flutefriend]

I've nearly always unlocked the boot on my IS300 by pressing the button on the key rather than inserting the key in the lock. Recently there has been a steadily increasing delay before the lock responds, which I assume may be because the key fob Battery is becoming flat. My problem is that when I insert the key in the boot barrel, the latter will not turn. I've tried lubricating it to no avail. Any ideas, please? I want to ensure that I can unlock the boot if the fob Battery fails completely. 

[scudney]

is your IS300 a mark1 please?

[Flutefriend]

Not sure. It was first registered in 2003. BTW - the key doesn't seem to go all the way into the barrel.

Edited September 6, 2016 by Flutefriend
Wanted to add info.

[scudney]

Okay, if that's the case there is a distinct possibility that your boot lid my have been changed at some point and possibly that the lock wasn't swapped over(as this would explain why your key doesn't go all the way in nor turn).Out of curiosity does your key open manually open the drivers door?

[Flutefriend]

I know that the spring on the boot was replaced, by Lexus Swindon, about a year ago, but I'm not aware of the lid ever having been changed. The key does indeed open the driver's door. However, I very rarely open it other than via the fob, and when I tried it just now it set the alarm off. Nothing I pressed on the fob would stop it, but when it eventually stopped I re-inserted the key and it opened and locked the door with no problem.

[scudney]

just been out to mine and put the key in the drivers door and alarm went off,opened door and pressed the fob and alarm stopped.Try inserting key in the boot lock with the car unlocked and turn the key clockwise slightly this should open your boot.

[Flutefriend]

Same experience with alarm going off and then stopping it with key fob. But no joy with turning the key in the boot lock, even with the car unlocked. :-(

[scudney]

that's strange because mine works,do you have a manual release level?have you tried inserting your key in the boot lock with the boot open(using the fob)and then try turning the key clockwise?

[Flutefriend]

Just tried that, but the key still won't turn either way. :-(

[Flutefriend]

And yes - I do have a manual release lever which works fine.

[scudney]

looks like you might have a faulty boot lock then or like I said earlier that the boot lock might have been changed at some point.

[Flutefriend]

I guess it must be a faulty lock. Thanks for trying to help.

[scudney]

no probs glad to be of assistance,please let me know if you eventually get it sorted