Quote:
|
Originally Posted by Wisha Haddan H3
Yep, my 07 5-spd has stabilitrak 
Traction control keeps wheel slippage down by braking the spinning wheel and transfering torque to the wheel with traction.
Stabilitrak helps control vehicle direction to prevent rollover. Sensors detect speed, roll and yaw and the computer lightly brakes one or more of the wheels as needed. It works around corners, when swerving, and in slippery conditions. The computer can even override your brake and throttle input (in case you freeze or panic) so you don't worsen a skid, or any fishtailing or snowplowing.
For example ... you're driving down a straight highway at 70 mph and a deer jumps in front of you. You swerve left to miss it, so now you're pointing left but your momentum is still going forward. You're at risk for a rollover. Sensing your speed, yaw (right and left motion) and imminent roll, Stabilitrak will apply light brake to your right rear wheel. This brings your nose back in line with your forward momentum and you regain control. At this point, the driver's primary job is to steer. If there's any traction on the road, Stabilitrak finds it.
Here's a more comprehensive description from GM http://www.gm.com/company/gmability/...venty/472.html |
Does the H2 have this also? I was completely sideways in both directions on the freeway at about 45 on dry pavement and was shocked that I didn't roll over. Infact it came back to center quite nicely. Wasn't sure if it was the truck or my driving skill that was responsible.