Does My 01 Chevy Z71 Have An Open Diff?

Mckenzie · June 18, 2009

its an 01 chevy silverado LT extended cab 1500 Z71,and my question is, does it have an open differential?

VR021302 · June 18, 2009

does ur glovebox have a G80 code in it. If it does then it has a locker, if not it is open

Mckenzie · June 18, 2009

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 · June 18, 2009

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

Mckenzie · June 18, 2009

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 · June 18, 2009

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 · June 18, 2009

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 · June 18, 2009

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 · June 18, 2009

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 · June 18, 2009

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 · June 18, 2009

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 · June 18, 2009

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

bossier62guy · June 18, 2009

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 · June 18, 2009

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 · June 18, 2009

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.