sorry, just reread the post, and I see that you said it was GM that says its
It seems that you could just go get the parts from the parts catalog for a
model with the digital one, get the correct sensors, connectors, and wires.
Maybe it is controlled through the pcm. Maybe you could swap out a newer
pcm to get it to work.
Whatever it is, it will have to be a do-it-yourself job, but NOTHING is
How much would you be willing to pay to upgrade your car. The unit is
integrated throughout the electronics of the car. The ECM,dash and all
components would have to be reengineered. It would be cheaper to buy a new
How deeply is it "integrated" with the car? That is my key question. Do
you have to replace the vehicle computer because the cell phone uses analog
instead of digital? Does the antenna have to be swapped out, etc.? What
part of the dash would have to be replaced, the air bag too?
It is especially annoying that GM knew this day was coming and yet still
kept selling non-upgradeable systems. I know that our 2002 minivan
had the non-upgradeable system. Six years from purchase to useless
feature is unacceptable.
Before asking why GM is dropping the analog service or why it cant be
upgraded, you should be asking why the big Cell Phone companies have
either dropped or will be dropping analog service within the next 3
Onstar service "piggy backs" on a cell phone service. currently there
are 2 types of cell systems one type is GSM (GSRM) the other is AMPS
(CDMA). all cell comunication is done on these 2 systems. I don't
know about in the USA but here in Canada, Bell and telus use the
AMPS(CDMA) and Rogers and Fido use the GSM(GSRM).
So when Rogers or Bell (not sure who GM uses as its service provider)
drops the analog service in the next 2 years Gm analog Onstar won't
As for asking if you can upgrade your Onstar from analog to digital,
sure you can... but do you really want too spend all that money? It
will cost more for you to "upgrade" then it is worth. Price out the
cost of sensors at the dealer, as I doubt these will ever be available
Analog service is ancient, it is obsolete technology, and it doesn't make
sense to force companies to support old technologies. For example we can't
tell Sony to make 8-track players. The real issue is that GM used a
technology that was already obsolete when they put it in my 2001 Yukon
Denali, and the company should come up with an upgrade path at least.
First off, I thought the decision to go analog for OnStar was incredibly
short-sighted. Unless they INTENDED to be phased out and not
have to support it in the future. That means that if it didn't sell, they
could let it phase out and then not even have to worry about support
for existing customers. If it was a success, then fine, convert to new
Bottom line is the conversion is probably pretty darn simple. There's
NO WAY it's incorporated into the airbag or other vehicle systems,
EXCEPT that it can monitor them. I'll bet long odds the OnStar
module contains a vehicle network connector an interface unit, a
controller, and then a cell phone module with GPS.
If it were impossible to upgrade without other vehicle changes and
upgrades, then GM would be home to the most incompetent asinine
corrupt engineers I can imagine.
Then again, remember what Ford did years ago. Routing the starter
relay through the Ford factory provided radio, and if you replaced it
with an upgraded unit (wasn't that how Delco originally got it's start?)
they would attempt to void your factory warrantee.
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