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Does My 01 Chevy Z71 Have An Open Diff?

Mckenzie

By Mckenzie
in Ask A GM Technician

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Mckenzie Senior Enthusiast

Mckenzie

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does ur glovebox have a G80 code in it. If it does then it has a locker, if not it is open
it has two stickers on it and the one on the left that says service parts identification and it has a whole bunch of 3 character letter combination of words and i found one that said "G80" and its the fifth one over and the third one down
VR021302 Senior Enthusiast

VR021302

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then you have a locker, it only works at speeds below 20MPH and a rpm diff of about 200rpm between the rear tires.

Mckenzie Senior Enthusiast

Mckenzie

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then you have a locker, it only works at speeds below 20MPH and a rpm diff of about 200rpm between the rear tires.
ok,thanks-so it doesn't have to be in 4wd to be engaged?

and on my mirroir i have an onstar button,a red paramedic symbol button, and a white circle button-the white cicrcle button is for use with a phone,how do i get it to work with my phone?

bossier62guy Senior Enthusiast

bossier62guy

Posted
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then you have a locker, it only works at speeds below 20MPH and a rpm diff of about 200rpm between the rear tires.
ok,thanks-so it doesn't have to be in 4wd to be engaged?

and on my mirroir i have an onstar button,a red paramedic symbol button, and a white circle button-the white cicrcle button is for use with a phone,how do i get it to work with my phone?

 

 

You can't....it's an old obsolete analog system....totally worthless now.

rodram Enthusiast

rodram

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GM will upgrade the old analog OnStar systems (in Canada anyway...) ..... they installed a free digital upgrade last year in my 2002 Impala (the first year that Impalas came with OS) on the condition that I paid for a full years use of it in advance... only disadvantage with the coversion is that not all features are active for the hands-free phone... it works great, you just can't enter numbers to get through an electronic answering or options menu, like you can if the digital On-Star was installed as original.

Mckenzie Senior Enthusiast

Mckenzie

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  • Author
Posted

 

 

GM will upgrade the old analog OnStar systems (in Canada anyway...) ..... they installed a free digital upgrade last year in my 2002 Impala (the first year that Impalas came with OS) on the condition that I paid for a full years use of it in advance... only disadvantage with the coversion is that not all features are active for the hands-free phone... it works great, you just can't enter numbers to get through an electronic answering or options menu, like you can if the digital On-Star was installed as original.
will i be able to tell if it has already been upgraded? and how do i get the white circle button on the mirror to sync up with my motorolla razr cell phone?
bossier62guy Senior Enthusiast

bossier62guy

Posted
Posted
GM will upgrade the old analog OnStar systems (in Canada anyway...) ..... they installed a free digital upgrade last year in my 2002 Impala (the first year that Impalas came with OS) on the condition that I paid for a full years use of it in advance... only disadvantage with the coversion is that not all features are active for the hands-free phone... it works great, you just can't enter numbers to get through an electronic answering or options menu, like you can if the digital On-Star was installed as original.

 

They won't go back that far on the trucks.....at least not from what I've read here.

bossier62guy Senior Enthusiast

bossier62guy

Posted
Posted
GM will upgrade the old analog OnStar systems (in Canada anyway...) ..... they installed a free digital upgrade last year in my 2002 Impala (the first year that Impalas came with OS) on the condition that I paid for a full years use of it in advance... only disadvantage with the coversion is that not all features are active for the hands-free phone... it works great, you just can't enter numbers to get through an electronic answering or options menu, like you can if the digital On-Star was installed as original.
will i be able to tell if it has already been upgraded? and how do i get the white circle button on the mirror to sync up with my motorolla razr cell phone?

 

 

You can't man....it's not a bluetooth system....it's an old Onstar system that is obsolete.

rodram Enthusiast

rodram

Posted
Posted
GM will upgrade the old analog OnStar systems (in Canada anyway...) ..... they installed a free digital upgrade last year in my 2002 Impala (the first year that Impalas came with OS) on the condition that I paid for a full years use of it in advance... only disadvantage with the coversion is that not all features are active for the hands-free phone... it works great, you just can't enter numbers to get through an electronic answering or options menu, like you can if the digital On-Star was installed as original.
will i be able to tell if it has already been upgraded? and how do i get the white circle button on the mirror to sync up with my motorolla razr cell phone?

 

 

You can't man....it's not a bluetooth system....it's an old Onstar system that is obsolete.

 

 

that's right... it is not a bluetooth system... so if you want your on-star to handle phone calls, then your handfree calling is essentially a pay-as-you-go cell phone number from whatever provider GM arranges it with in your area.

 

Now if you want bluetooth phone capability to run your Motorola or whatever cell phone, then get some other add-on device... like the TOMTOM GO630 GPS I have in my 97 C2500 ('way before OnStar). If I have the cell phone on in my pocket on on my belt, then as soon as I turn the GPS on it is connected to the phone (complete with mic, speaker, and onscreen touch controls)

Mckenzie Senior Enthusiast

Mckenzie

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so will getting the Onstar updated to the digital stuff give me bluetooth? and is there a way to see of it has been updated?

sorry-i'm just kinda confused on this :lol:

bossier62guy Senior Enthusiast

bossier62guy

Posted
Posted
GM will upgrade the old analog OnStar systems (in Canada anyway...) ..... they installed a free digital upgrade last year in my 2002 Impala (the first year that Impalas came with OS) on the condition that I paid for a full years use of it in advance... only disadvantage with the coversion is that not all features are active for the hands-free phone... it works great, you just can't enter numbers to get through an electronic answering or options menu, like you can if the digital On-Star was installed as original.
will i be able to tell if it has already been upgraded? and how do i get the white circle button on the mirror to sync up with my motorolla razr cell phone?

 

 

You can't man....it's not a bluetooth system....it's an old Onstar system that is obsolete.

 

 

that's right... it is not a bluetooth system... so if you want your on-star to handle phone calls, then your handfree calling is essentially a pay-as-you-go cell phone number from whatever provider GM arranges it with in your area.

 

Now if you want bluetooth phone capability to run your Motorola or whatever cell phone, then get some other add-on device... like the TOMTOM GO630 GPS I have in my 97 C2500 ('way before OnStar). If I have the cell phone on in my pocket on on my belt, then as soon as I turn the GPS on it is connected to the phone (complete with mic, speaker, and onscreen touch controls)

 

 

And you can't even use it to handle phone calls any longer because the system is obsolete and CANNOT be upgraded to digital. If you don't believe me go to the onstar website and enter your VIN and it will tell you the same thing. My 02 has the same system as yours and trust me it's not upgradeable.

 

Be my guest: https://www.myonstar.com/adt.os

Mckenzie Senior Enthusiast

Mckenzie

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very helpful link,it explained everything-it said you could upgrade but you had to pay two hundred dollars for one yearv of onstar and then once your a member you pay $15.00 for a kit that GM installs

bossier62guy Senior Enthusiast

bossier62guy

Posted
Posted
very helpful link,it explained everything-it said you could upgrade but you had to pay two hundred dollars for one yearv of onstar and then once your a member you pay $15.00 for a kit that GM installs

 

You obviously did not read it close enough....this is what it says for my 02 (which happens to be newer than your 01)....

 

Your VIN Result

You entered VIN 2GCEK19T221230343

 

As of early 2008, cellular carriers, including the carriers on whose networks OnStar depends for the delivery of OnStar services, will no longer support analog service on a national basis. Without the analog network, we can't ensure the coverage that will allow us to provide subscribers, with analog equipment, the services they expect from us.

 

As a result, starting January 1, 2008, OnStar service in the United States and Canada will be available only for vehicles that operate on the digital cellular network. This is an analog-only vehicle, with equipment that can only operate on the analog cellular network. Since this vehicle's equipment is analog-only, its OnStar system will not operate on the digital cellular network and upgrades are not available. This means, in an emergency, despite what the system may indicate, this vehicle will not have a connection. We regret that we will not be able to provide OnStar service to this vehicle after December 31, 2007.

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