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> Does Cem Replacement Reset Everything?
mrsamandabee
post Jan 24 2013, 08:53 AM
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Location: American in Germany
Drives: 2013 XC90



Hello all, newbie here. I have scoured the forums for an answer to my question and in doing so I see I am not alone in my problems.

Background: 2013 XC90 with 2500miles experienced the electrical system shutdown while driving. Took car to German dealership (American living in Germany and bought American spec vehicle from American dealer that "only sells, does not repair") and they had vehicle two weeks and replaced CEM. This failure was after two previous attempts of keyless entry not working (not battery, both would not work) and the alarm would go off after entering car manually.

Issue/question:
I got in my vehicle and reset the seat manually to how I wanted the seat to be positioned. Then I press power on the radio and it instantly connected via bluetooth to my phone and started playing music. I thought that was a little weird, but was more concerned at paying attention as to how the vehicle was driving. After giving it more thought the next day I tried a few more things. I pressed the memory 1 button and the seat adjusted to how I had it set before the shop visit and I tested the radio stations and they were all of my favorites I had preprogrammed before.

I guess my question is.....does replacing the CEM not reset everything in the vehicle? I am just really concerned the work was not done or they just did some "software updates" not really replacing anything.

Thanks!!
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2save
post Jan 24 2013, 09:52 AM
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Location: Malaysia now, normally Germany
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what it was, - what has make You "more concerned"..?
somthing in engine performance? or its "character" ?
i have something simmilar with an old S80 long before... even it cannot be started... / i will tell more if someone interested.

QUOTE (mrsamandabee @ Jan 24 2013, 08:53 AM)
Issue/question:
, but was more concerned at paying attention as to how the vehicle was driving. After giving it more thought the next day I tried a few more things.

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grendel1960
post Jan 24 2013, 10:46 AM
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surely the seat has its own electronics module as would other systems, the CEM just manages all these other systems.
Grendel
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mrsamandabee
post Jan 24 2013, 11:38 AM
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Location: American in Germany
Drives: 2013 XC90



QUOTE (grendel1960 @ Jan 24 2013, 04:46 PM)
surely the seat has its own electronics module as would other systems, the CEM just manages all these other systems.
Grendel



That's what I was wondering about too...if each system has it's own little sub-brain that keeps the information even upon replacement of the big brain.

I guess I'm just being overly paranoid about the whole thing. We are traveling in two weeks so I am scared to death the same thing will happen during the trip. Thanks Grendel :-)
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