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Old 05-10-2016, 01:47 AM   #1
hoodun
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2002 L-Series 3.0L Sedan
Default Saturn Vue GL Hybrid Battery Compatibility

Are the hybrid batteries the same for all the years of the GL. 2007-2010?

I may need a hybrid battery for a 2007...

Not much out there. I see some on ebay but they are all dated 2007, which I possibly means they are the old batteries replaced during the recall.

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Old 05-10-2016, 06:21 AM   #2
billysvue
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2005 VUE 2.2L
Default Re: rebuild a hybrid batt...Saturn Vue GL Hybrid Battery Compatibility

Some people DIY or have them rebuilt.
https://www.google.com/webhp?sourcei...tery%20rebuild

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245216 mi. VUe is off to the dealer auction
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Old 05-10-2016, 11:58 AM   #3
fdryer
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2003 L-Series 3.0L Sedan
Default Re: Saturn Vue GL Hybrid Battery Compatibility

1-What type of battery is it? Nickel cadmium, nickel metal hydride, lithium? Labeling on the battery or your owners manual should have this information.

2-How do you know when to service or replace hybrid batteries? What information do you have insofar as guidelines, procedures?

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Old 07-16-2016, 01:00 PM   #4
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Default Re: Saturn Vue GL Hybrid Battery Compatibility

This thread is aging but I wanted to chime in and share what I've learned working on my own 2007 vue hybrid the last few weeks:

Are they all the same ? Yes and no...

GM had multiple recalls involving changing out
the 3 dual-cell batteries inside the packs...

The date of the battery on the outside may not
be accurate to determine the age of the batteries
inside the pack, especially if the car was on the
road for some time before being parted out.
Those replacementa were done free by GM for
8 years so it's very common they were worked on.

If the VIN number is available you may be able to
check and confirm if and when the recalls were performed.

There are multiple things which can cause a battery
pack to be "bad" and all are repairable technically...
The cheapest source for the actual cells is used
batteries at this point but if it's been on a shelf
months or years it may not charge back up....

In addition if you are buying the entire pack used
they usually come with the BECM attached.
This is where it gets more complex.

There are two versions of the BECM and they
can both work but the non-plastic-coated version
with the green board is the desirable second revision.
This is the version you'll find in the later years and
this is a more reliable BECM.

The wire harness is short, as in a few inches
But you can buy an extended harness to connect this
Battery to the older cars where the BECM had a long harness that connected to the car harness in the
front of the driver side rear strut tower next to the rear seat (under the trim panel, more difficult to get at).

The extended harness is 30-40 bucks plus shipping online.
Part number 20889879. Again this is only
when using the newer style BECM in the cars
which originally had the old style.

Some have had success splicing wires etc to
connect them instead.... this is all about how brave
and confident you are.. or how lazy vs how cheap.
I personally bought the harness.. I'm an engineer
and could easily solder wires.. I'm lazy though.

Once the BECM is replaced it needs to be programmed.
The easiest and best way is by a dealer. If you
already have the 2ND gen BECM or dont want to
interfere with it you can replace just the cells inside
by opening the casing and disconnecting the wires to
test each cell for voltage and replace which ever are
low or leaking. The recommended procedure though
is to always replace all three together.

There are also 3 temp sensors in the pack which
can be checked for resistance once they are all at the
same temp, which will shut down the battery pack if
one goes bad and is reading incorrectly even if the
battery is ok otherwise. If you have a code for battery
overheating and the sensors are all within spec do
not simply replace the sensors and run the battery...
Overheating is a bad sign.

There is also a fan that in theory can go bad...
I don't know much about that fan except that
the fan has a different connector on the older
and newer battery packs and you will need to
either change the connector on the old fan or
replace the fan with the newer part if installing
a 2nd Gen BECM on the older style battery pack.

None of this is something a DIYER/backyard mechanic
should attempt... 36 volts isn't crazy but you may
be harmed or killed if careless and I dont think
you want to throw your health away to save a few bucks
so if you're unsure don't touch it.

I'm by no means a PRO and I could be off base on one
or more things...good luck!

I've attached a couple pics another
user uploaded of the two BECM
Designs. The yellow clear-plastic encased
one is the older, worse becm.
Attached Images
File Type: jpg 1st Design.jpg (39.0 KB, 10 views)
File Type: jpg 2nd Design.jpg (59.9 KB, 11 views)

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