06 Sienna - Dead Battery -now what

mike · 2008-02-02T21:39:36+00:00

My 'new' 06 Sienna CE had been sitting unused for about 5 days - priorto that it was driven about 4 miles - after sitting idle for 5 days(In sunny LA, CA). This morning the battery was totally dead - nolights anywhere. Putting a 12 volt tester on the battery barelyproduced a glow. Put a charger on and lights started working. Therear door will not open. Guess there is no over-ride?The vehicle was purchased 5-2006. The battery date is 4-29-06.I intend to charge it for about 4 hours at 6 amp and see what works.Questions:Have or will the electronics be goofed up - so far?What if anything will happen when/ if I install a new battery.Any warranty on any of this? The vehicle is less than two years old.Is this perhaps a case of not driving it enough?In that case will a charge not cure the ills? Any electronic problemscreated so far?Just getting out the owner's manual.Thanks m

Feb 02, 2008 43 Replies

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sylvan butler 18 years ago

The green eye is just a simple specific gravity tester -- it's a little ball that floats or not.

sdb

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Jeff 18 years ago

Actually, it is 0.06 V in a week.

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Ray O 18 years ago

The battery's rate of discharge is usually not linear. I don't have the specs for the rate of discharge.

If it makes you feel any better, the fact that Toyota issued a TSB outlining how to measure battery drain on a Sienna tells me that the situation you're in is not that uncommon. I'd bet the dealer has more current information than I do on whether or not your battery and charging system are good and what to do if it is not.

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