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As I have already posted, I experienced this message numerous times (almost every time I cranked her up and drove for a short while) just after I took delivery. Upon recc from the Vette specialist at the dealership, I waited it out to see if the problem would self-correct. His theory, for those that missed my last post, was that there is sometimes an excessive amount of lubricant in the steering column that sometimes causes the sensor to fault, thereby displaying the message "Service Active Handling" and the AH light to light up in the speedometer. The tech thought that a simple fix would be to drive normally and turn the steering wheel when not moving, all in attempt to displace the excessive lubricant. I'm happy to report that as I did this, the frequency of the message became less and less. Now, after more than three weeks (I'm knocking on wood right now) I haven't seen the message and I think that the problem has been remedied. Just thought I'd pass this along to the new owners so they don't freak out when they see the message and run to the dealership for what may be unnecessary surgery and downtime.

As a side note, I have seen threads that say that even though the AH light may come on in these circumstances, fear not, the AH system is still on and responsive. I received conflicting information from the tech, who called GM to confirm, that whenever the AH light is on and the message captioned above is displayed, the AH system is NOT on. So be careful with you driving habits. Can anyone out there clarify this conflicting information. C4C5?
 

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I also have seen this once...I turned the car off, and back on again, and it was gone...haven't seen it since...*shrug*
 

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As I have previously reported, I had this same problem. Fault came on at about 450 miles. The GM Tech guys told the dealer to put the car up on a lift and cycle the steering wheel lock to lock 100 times. I now have about 1300 miles, including 200 on the track, and the fault has not returned.
Ffen
 

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Just for the record, I have not seen this problem in my first 1300 miles...
 

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At about 1100 miles I got the same display. I turned the car off and back on, it did it one more time but not again since. Now have about 1250 miles.
 

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Yes, Active will be disabled

Hi there,
Yes, your information is correct, as if the JL4 cannot correlate the steering wheel, to the intended direction, it will shut down, versus giving wrong information, and a possible bad movement.
Best to you, c4c5
 

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I had this message come up when I picked up my '01. It turned out to be the yaw rate sensor. The dealer replaced it in a couple of hours and everything is OK now. I haven't really pushed the car hard enough to feel the difference with or without active handling.

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Albert
 

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C4C5, have you come to any conclusions as to why some cars have this problem and most don't? Have you found it to be caused by either a defective yaw sensor or possibly excessive lubricant?

These sporadic occurences always seem to be the hardest to solve...

Thanks... :D
 

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Hi there,
Well, active handling issues have been kindof rare.
there was a reprogram issued for a c1288, which was just a reflash of the controller.
As for the reasons for failures, I have seen a few yaw sensors, wheel speed sensor harnesses, a few steering wheel position sensors, and 1 actual controller.
Reasons, I personally, chalk it up to simply manufacturing components.
I really dont see alot of issues with active, so really, your guess is as good as mine.
Best to you, c4c5
 
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