My wife's 2011 Equinox has an intermittent problem. The Stabilitrak, ABS and Traction Control lights come on. Steering is not affected. When the lights go out, engine power drops briefly. thoughts?

SOURCE: abs light/traction control light

You can check out what the trouble code is by pushing and holding the information button and the up arrow (right side of instrument cluster above the radio) until all the instrument clusters light. Press the information button (last) to enter test mode. I've had an error C1234, meaning Left rear wheel sensor fault. I found the problem to be a corroded connector under the chasis just under the rear left door about 2 feet in. I had to by-pass (replace 1 wire due to corrosion at the connector.

SOURCE: ABS light and Traction control light stay on.

That "grindy" feeling is when the ABS kicks in. It's only suppose to activate when you slam on the brakes and the wheels would normally lock. Instead, ABS will very quickly pump the brakes on and off, to prevent the wheels from locking (making a giant skid mark) and stopping the car more effectively. Generally this only happens if you slam on the brakes or loose traction due to rain or snow while braking. If this is happening often and the brake light is on, on the dash, then you need to get this checked out by a qualified mechanic ASAP.

SOURCE: Engine light and ABS traction control light remain

The ABS sensor is a speed sensor also for Traction Control. This is why both lights are on , One of your front ABS sensors are bad or disconnected, or has a pinched wire.

SOURCE: 2007 Equinox. No power steering,

Had same problem, went to work everything was fine, then got in vehicle getting ready for lunch......no power steering and service stabilitrak light came on. End result was power steering motor needed replaced. Motor controls the power to the rear wheels along with the power steering.

SOURCE: On my 2007 Chevy Equinox

i have chevy equinox 2007 LT with AWD system, my problem is that i have two messages appearing in the DIC : satbilitrack and service tracktion control. can u help me with this and tell me whats the problem and how should i fix it?