"Change Battery"
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Driver School Candidate
Joined: Aug 2017
Posts: 2
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From: California
"Change Battery"
The window from the Maintenance > Battery> Set date and Time. "Change Battery" has popped up on my car touch screen about 10 times today. Does my 2007 Lexus RX400H have 2 batteries and if so, which one would the message be referring to?
Driver
Joined: Mar 2011
Posts: 168
Likes: 10
From: Prescott,Arizona
Advanced
Joined: May 2016
Posts: 557
Likes: 53
From: Ontario
if you want to wait --and live on the edge!-- you can wait for the shifter to display warnings like' must be in park to start'. i found out,inadvertently, that my shifter problem was directly related to my 12v battery. changed battery and haven't had message or starting problem since(touch wood!).
Racer
Joined: Mar 2011
Posts: 1,817
Likes: 229
From: wa
Please, be aware that it is not a regular 12V battery. It is a deep cycle 12V battery. It can be replaced with any DC battery, as far as it fits the cables and compartment layout. I have seen some very decently priced ones that run about $100 plus.OEM Panasonic is ridiculously expensive. Many, self included, did Yellowtop Optima.
You have thermistor and gas vent to take care of. I do not believe gas vent is absolutely crucial to have but... I rigged my Optima so that its flat vents were connected to venting hose. Thermistor is simply gently pried off the old battery and moved to a new one.
As I am wishing you well, and after many posts on 12V replacement at TN, pretty please, have back up power connected to battery cables during replacement. It may save you a lot of headache down the road.
If you replaced it and goof lights came up all over the instrument cluster, do 3 consecutive complete power cycles - ON/OFF. This is recommended by Toyota. If it didn't help - it's dealer from that on.
You have thermistor and gas vent to take care of. I do not believe gas vent is absolutely crucial to have but... I rigged my Optima so that its flat vents were connected to venting hose. Thermistor is simply gently pried off the old battery and moved to a new one.
As I am wishing you well, and after many posts on 12V replacement at TN, pretty please, have back up power connected to battery cables during replacement. It may save you a lot of headache down the road.
If you replaced it and goof lights came up all over the instrument cluster, do 3 consecutive complete power cycles - ON/OFF. This is recommended by Toyota. If it didn't help - it's dealer from that on.
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Joined: May 2016
Posts: 557
Likes: 53
From: Ontario
12v deep cycle?
i didn't know this. i have searched and read the manual and nowhere does it mention deep cycle. i hope you are mistaken as i've just recently put in a 'normal' 12v battery.the car parts store recommended my 12v but did not mention anything about deep cycle , even though they sell them. where did you get this info?thanks.
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