rx450h Powered tailgate will not open - how to open it?

[brendangeorge]

Hi my 2012 RX450h tailgate will not open.

Any ideas how to open it?

The car starts and runs OK.  I think I hear the lock kclicking - I checked the switch in the glovebox and it is in.

The AUX Battery went flat over Christmas when the car sat for 4 weeks or so.  My wife does not like driving it and I was laid up after surgery.

I have read a few posts but cannot find how to open the tailgate manually.  I suspect the Battery may be duff now.  If I want to swap the bat I will have to get it open so there must be a way.

I will charge the batter from under the bonnet - it seems that some people had success with this method.

Any suggestions (to open the tailgate) will be much appreciated - I know flattening a lead acid Battery is a bad idea.  I am an electrical engineer!!

I don't want to fetch a crow bar to the back door.

Regards Bren

I found how to open the backdoor on Youtube.  A pain for a fat old boy like me!!

 

Edited January 12 by brendangeorge
Answered one of the questions I posed

[fezman]

@brendangeorge bit of a known issue see 

For mine, i got a https://www.amazon.co.uk/DRY-PURIFYTM-Dehumidifier-Deodorizer-Charcoal/dp/B01N2G842L . After a few days the rear door started working again, and continued ok until i sold the car a couple of months ago. 

[brendangeorge]

Fix completed yesterday.

New Battery was needed - the old one was the original from 2011.  It was down to 75% but still working.  Lexus parts (Swindon dealership) off a great price - I have a trade account there.

The tailgate would not open automatically after the new bat so I bought the ECU and motor.  £1200 list price plus fitting was a bit steep.

I bought a new one from Rockauto for £275 - delivered for £400.  I odereded it at 10:00 New York tine last Saturday; they packed it at 11:00 and shipped it.  I received it at 12:00 Tuesday.  That is service.

I had it fitted by my local garage - £55.00.

It's not hard to do yourself - here is a good Youtube video on how to from Viktor G:

https://www.youtube.com/watch?v=6pZ_pU0Bqxg