Last post on Apr 04, 2011 at 1:39 PM
You are in the Toyota Camry Hybrid
What is this discussion about?
Toyota Camry Hybrid, Electrical, Lighting
#1 of 36 Starting battery discharging
Mar 02, 2007 (1:15 pm)
I have owned my TCH for approximately 3 months. Every single time the vehicle has sat unused for more than 3 days, I end up with a dead starting battery. It starts immediately when jumped, but this is becoming more than a bit annoying. The dealer at first insisted that the $350 starting battery was defective and has replaced it 3 times. They are now convinced that something is intermittently draining the battery, but after having the car for a week on one occasion and almost a week currently, they have no clue what is going on. I had thought it was probably the smart keys “communicating” but on the most recent dead battery occasion both keys were 1300 miles from the car. I am beyond careful to be certain that everything is off and lock the car every time it is left. Any ideas or similar experiences??
#2 of 36 Re: Starting battery discharging [obrienklm]
Mar 23, 2007 (11:11 am)
My TCH is now 3 days old. Day 1 worked beautifully. Loved it. Day 2, 8 a.m., would not start. Lots of warning incons appeared on the message console, including Check Battery and Check Engine. But car would not give Ready light and would not move. Service guys from Rudy Luther Toyota / Dealer arrived and also could not get it to Ready status. Jumping battery didn't help. Now they say it's a computer problem. Day 4, still don't have a working TCH in my garage. VERY disappointed and VERY angry. Dealer told me that some people had experienced starter battery problems, and he tied that to leaving the smart key in the car or leaving a door ajar. While niether of those appear to apply in my case, I just don't buy it. Something serious is wrong with these cars. I truly regret buying it and will warn off anyone I can. They simply are not ready for prime time. Buyer beware!
#3 of 36 Frustration
Mar 25, 2007 (3:59 pm)
I understand your frustration but you are over the top saying the TCH is not ready for prime time. As an example: I have owned mine for 10 months and have had NO problems at all. Now approaching 8000 miles and getting life of car 37.6 mpg. You just have a problem with your car that needs to be fixed.
#4 of 36 Re: Starting battery discharging [satchselmer]
Apr 02, 2007 (4:46 am)
I truly regret buying it and will warn off anyone I can. They simply are not ready for prime time. Buyer beware!
Hummm. Three cars out of about 40,000 with this problem so far. I'll take my chances.
#5 of 36 Battery failure in Prius
Apr 07, 2007 (9:48 am)
I have had identical battery failure problems with my 2006 Prius. Battery failure December 8, jumped, dealer said no problem, no draws. Failure December 20, dealer replaced battery. Battery failure Fbruary 19, dealer says no problem, no draws. Returned from one week vacation to battery failure March 11. Dealer cannot diagnose problem. Now forced to start car every other day to have confidence that it will start. There is obviously an intermitent drain. I also though that it might be a smart key or loose door problem, but have ruled those possible causes out.
#6 of 36 Re: Battery failure in Prius [sturdily]
Apr 08, 2007 (6:53 am)
Not sure if you are aware of the GreenHybrid site but there is a much longer discussion of this issue on that site:
Re my situation: Update on the dead battery saga… I was away last week and my TCH starting battery was stone cold dead again this morning. I think that is the 6th time it has been dead when left more than a couple days. As always it started immediately with a jump and my dealer again promised to figure out what’s causing the drain. And… they think they have it!!!
It seems that Toyota has notice several similar problems with the THC, all in the northern states, and they have tracked it down to a problem with the computer that controls the remote start. Apparently there is a malfunction between the smart key and the remote start program that is draining the battery over time. They plan to install a new computer tomorrow and hopefully the problem will be solved.
I'm letting it sit over the weekend... we'll see.
#7 of 36 Re: Battery failure in Prius [obrienklm]
Apr 08, 2007 (11:18 am)
Hello Keith. Thanks for all of your updates. All of my failures occurred after cold (under 10 degrees) mornings.If the new computer works, I'd love to get the details so I can pass them on to my dealer. As I reported before, I have had the exact pattern of failures and immediate jump starts and have checked and double checked all switches, lights and doors.
#8 of 36 Battery Failure Saga
May 04, 2007 (3:49 pm)
It's been about a month. Has your battery stopped draining? If it has, what was the fix?
#9 of 36 Re: Battery Failure Saga [sturdily]
May 05, 2007 (2:49 am)
So far so good. I have not actually left the car without running it for more than 3 days, but up to 3 days idol has not been a problem. I am fairly certain that the new chip for the remote start has solved the problem.
I should mention that I do not believe that my problems had anything to do with cold weather, simply the amount of time the car sat discharging. Cold weather should actually help the starting battery maintain its charge, as batteries discharge at a much slower rate at lower ambient temps. It was never an issue of the typical cold weather, slow turning engine. The battery was so dead I had to unlock the doors with the emergency key and usually lost my radio presets.
If your dealer wants to know more, I believe the Chicago district of Toyota is one that finally made the connection to the remote start computer. They may even had a Tech Bulletin our by now.
#10 of 36 Update Thanks
May 06, 2007 (7:23 am)
That's good news and I will pass it along to my dealer. If they furnish a new remote starter chip and it solves the problem I will let you know.