Thanks for the update, baileysade. Please keep us posted on what you decide. Please don't hesitate to reach out to us if needed!

Jessica
Chevrolet Customer Care

 

I had the comb installed a couple of years ago after experiencing this issue. Problem went away after installing the comb., but has come back recently active handling actuating primarily in R/H turns, and the message and light activating after the activation. pulled codes and read SWPS and also had a wheel speed sensor recorded. Guess I'll be heading out to the dealer to see the SWPS is actually the problem this time.

 

Would be very interested in what the dealer evaluation reveals. Please keep us up to date.

 

I know this subject has been lingering for quite a while and there are many posts related to it. I'm not trying to bring all of that up again, or piggy-back on that. I think the cause of my problem is a bit different than what I've seen in all of the old posts. So please read to the bottom before jumping on me about covering material that's been beat to death.

I have a 2011 Z06, with the Z07 Ultimate Performance Package. 9,882 miles.

I've had other C6 Corvettes and had the issues with the steering position sensor on my 2005. Had the recall work done, but I'm pretty sure this isn't the root of my problem in my 2011 Z06.

I've taken it to my dealer and they just tell me they can't find anything wrong with the car, but I've had quite a few instances of the Active Handling System applying the brakes at times it shouldn't. I've had the Service Active Handling Message on the DIC once.

I've been coasting/engine braking in 4th gear, in a straight line and it applied brakes. I've been in turns and had it apply brakes to the outside front wheel in a jerky way when I was in no danger of losing traction. As I'm going through the turn, it's like jerk, jerk, jerk, through the turn. I've even had it apply brakes to both front wheels and bring me to a stop while going straight. The person behind me was pretty mad, they thought I was brake checking them. It was an Aston-Martin, thank God he didn't hit me. That was pretty embarrassing.

I see that this is a widespread problem, but different causes in various years. As I said, I don't think my problem is attributed to the steering position sensor, like with the 2005-2006s.

What bothers me is, the dealer just throws up their hands and says "it's not throwing any codes, and when we drive it, it operates normally, so we can't do anything". Really? Has our world gotten to the point where, if they can't plug a machine into it and the machine tell them what's wrong, they can't do anything?

They did offer to give me a data collector, to connect to my ODB II, so they could get a snapshot of what's going on when/if it happens again. I just never know when that's going to be. I only drive the car about 4,000 miles a year, so this may be quite a challenge.

I would be willing to pay, to upgrade the whole system to the newer Performance Traction Management System, that the 2012 and 2013 cars came with. I haven't heard of anyone having these issues with the newer system and I know for a fact, it's a better system.

Has anyone investigated this or knows what all is entailed with upgrading a car (2011 or earlier) to the 2012-2013 PTM (Performance Traction Management)?

I would think that it's mostly software, with some hardware changes.

 

It might pay to check the connectors and make sure that each little pin is actually locked in place. They can appear to be in properly, but if the little tang isn't locked, the pin can actually be pushed back and not make a solid connection as the connectors are pushed together. A problem like this has driven more than a few mechanics crazy.

 

I want to be included on this thread. My 2005 has had the "Recall" performed and the "comb" installed to the steering angle sensor connector.

My car will still intermittantly lock up one of the front brakes (Left Front or Right Front) and state "Active Handling" on the dash.... No DTCs. When it goes into this mode, it will continue to lock up that brake for every 10 feet of movement till the ignition is cycled. Car has 43k miles.

 

My 2005 has the "service traction" promt with no codes.

Will the codes for this stuff show up on the onboard diagnostics ?

 

Ok,

Read through the information and see that the thread mostly applies to 2005-2008. I own a 2010 GS with 10150 miles on it, and I'm getting the "service active handling system" with a yellow signal in the gage. The car seems to drive just fine.

The TPMS devices are all new, they are clones from the orginal ones. But, I get the same notice with my GM factory TPMS on. I have two sets of wheels each with its own set of TPMS devices.

The warning comes on after driving for a bit. But, is not there when the car is first started.

Any one got any advice?

 

Be carefull,The guy who bought my 10 ZR1 had a almost off road experience with his car,it only has 2k miles on it.Bone stock.And almost went in a ditch about a month ago.I put my own SWPS in my 06 Z06 myself.Dealer wouldn't do **** for me,It isn't a bad job at all.Part was 60.00

 

Each key off, the EBTCM clears the DTCs and each Key ON, it does a self test and a SWPS zeroing routine. If it takes too long, it will report the warming up message.

If it fails any portion of the test, you get the messages and the DTCs

 

I have a 2008 corvette with 21,000 miles on it. My services active handling light comes on and when it shuts off the brakes apply themselves while im driving I took it to dealers and they want $1900 dollars for the repair. I think it should be a recall for this before someone gets killed.

 

We're sorry to hear that you are experiencing this concern on your 'vette. We do see that you sent us a private message, and we will get to you shortly!

Marissa
Chevrolet Customer Care

 

I was recently participating in the Vettes4Vets at Talladega Super Speedway traveling about 125 out of turn 2 on to back stretch when the steering jerked to the right. Lucky I had a very firm grip on the steering wheel, but for a couple of seconds I thought we were going into the wall. The feeling was similar to a tire separating or getting one wheel caught on uneven pavement and the steering wheel pulls, nearly out of you hands.

I was later told by a club member that there were problems as per this thread, and a temporary fix was to hold down the active steering button for 8 seconds to disengage the handling and traction control to make it home. I made it home with no problem, but was concerned this might happen again.

Took the car to the local Corvette Shop and had the wheel aliment checked and the rear wheels were off pretty good, but the fronts were fine. The shop owner told me I should always disengage the active handling system as I did after the track experience.

I also checked my VIN for recalls, but my car was clear. My Vette is a 2006 Couple.

 

After hearing all the problems that guys are having, I just shut it all down before leaving the driveway. This should definitely be a recall. You would think that GM would learn from their ignition switch problem that has come to a head in other cars.

 

I've had the Service AH/TC/ABS message issue for over a year. My mechanic was able to see a code pointing to an issue with reading the right rear wheel speed sensor. Through a few threads on the forum I checked the connector and the pins were bent. I cleaned and bent them back and it was good for 4 months. Next time did the same and I was good for 3 months. Next time I did the same it only lasted a couple weeks.

When the issue would occur I'd get a wheel locking down pulling the car to the right. Fortunately it would usually happen fairly quickly and not randomly while I was driving down the highway.

I was going to purchase a new hub for the one connector and splice in a new connector on the other end when I came across a thread on here where the guy just removed the connector and soldered the wires together. Rather than dropping money on replacing a hub that doesn't need to be replaced just for a connector I went the solder route and have not had an issue since. If I ever need to remove that hub I can just cut the jumper wire I soldered in and solder it again when I am done. So much easier to deal with than a poorly designed connector.

 

GREAT POST ! This is the 1st episode I've heard concerning a bad wheel speed sensor. I'll check it out , thanks!

 

To clarify it was not a bad wheel speed sensor. It was a bad connection going to the sensor. If you take off the wheel you will see 2 wires and a connector coming out of the wheel hub. That connection was bad on mine. I will find the threads that led me to that.

The sensor is integral to the hub and I do not believe it can be replaced.

 

Thanks for the clarification Josh !

 

Post from Bill Curlee about bent pins in the connector:
http://forums.corvetteforum.com/1573340784-post849.html

Splicing in a new connector:
http://forums.corvetteforum.com/c5-t...e-harness.html

Then I read read what it would take to replace the hub:
http://forums.corvetteforum.com/c5-t...ment-help.html

and figured soldering would be a much better use of my time & money:
http://forums.corvetteforum.com/1573067036-post17.html

I also used 16 ga wire to make a jumper cable between the sensor wire and the connection going to the chassis. Heat shrinked them both then wrapped in electrical tape.

 

In my case there were no warning lights or codes. I had a previous battery/alternator/starter issue and I lost power several times causing multiply codes, so I could not narrow anything down. I subsequently had the wheel aliment done and cleared all the module codes, so if it happens again I might have a start point to locate the problem.....if I still have one.

Since the aliment and running with the Active Handling and Traction Control OFF, no problems so far.