william8004

Don't know why it took days for Onstar to tell me that my HHR is not phone app compatible. All I really want it to be able to track the vehicle. It looks like I need to buy an after market device. They told me the 08s didn't have the remote lock/unlock/start feature connected to Onstar.

Anybody know of any hacks or alternatives? I look at the older posts, but didn't see anything that applied. Thanks

RJ_RS_SS_350

You don't need OnStar for those features, just a key fob that the vehicle has been programmed to accept.

donbrew

Have you looked at your Owner Manual? Look at my sig before you say you don't have one.

It says you can use their telephone service or Verizon; that was true in 2008 I don't know if things have changed. It also says that remote door unlock is available, at extra charge.

If you upgrade the unit to a 2009 with Bluetooth... That seems to be a plug and play thing, the units are all over the place at junkyards Every GM vehicle had it in some years.

Oldblue

Many owners back then, did not want Onstar , it was like big brother was watching able to track the whereabouts of the HHR, unlock it from afar and remote start or disable the engine, very Sci-fi stuff.
There’s probably more information about disabling Onstar back then.