This relates to a 2009 GXP...
I have had this problem occur twice, yesterday and a few months ago. The LED on the far right of the rear view mirror is normally green, but both cases of trouble occurred at first start up in the morning when the LED came on solid red and then went to a blinking red.
In both cases, I pressed the (non-emergency) button to contact the OnStar operator who in turn connected me to their Tech Support. To state the obvious, it was working as I was able to communicate with OnStar just fine. At the end of each call, the LED returned to, and stayed, green.
After the first episode, Tech Support was not able to offer anything other than the red light is an abnormal condition. Yesterday they said it had to go to the dealer and was either a hardware failure -- or that the back up battery had reached the end of its service life. (This may make sense as both times the problem occurred after sitting overnight in rather chilly weather -- and battery capacity decreases in cold weather).
So, here are my questions:
-Has anyone else experienced this problem?
-Is this back-up battery user replaceable?
-If so, where is the OnStar module located?
The good news is, I purchased the shop manual on CD a couple of years ago; the bad news is that it is missing in action.
Thanks in advance for any thoughts...
I have had this problem occur twice, yesterday and a few months ago. The LED on the far right of the rear view mirror is normally green, but both cases of trouble occurred at first start up in the morning when the LED came on solid red and then went to a blinking red.
In both cases, I pressed the (non-emergency) button to contact the OnStar operator who in turn connected me to their Tech Support. To state the obvious, it was working as I was able to communicate with OnStar just fine. At the end of each call, the LED returned to, and stayed, green.
After the first episode, Tech Support was not able to offer anything other than the red light is an abnormal condition. Yesterday they said it had to go to the dealer and was either a hardware failure -- or that the back up battery had reached the end of its service life. (This may make sense as both times the problem occurred after sitting overnight in rather chilly weather -- and battery capacity decreases in cold weather).
So, here are my questions:
-Has anyone else experienced this problem?
-Is this back-up battery user replaceable?
-If so, where is the OnStar module located?
The good news is, I purchased the shop manual on CD a couple of years ago; the bad news is that it is missing in action.
Thanks in advance for any thoughts...