The following three systems help to control the vehicle while driving — brakes, steering, and accelerator. At times, as when driving on snow or ice, it is easy to ask more of those control systems than the tires and road can provide. Meaning, you can lose control of the vehicle. See Traction Control System (TCS), Enhanced Traction System (ETS), and Electronic Stability Control (ESC).
Adding non-dealer/non-retailer accessories can affect vehicle performance. See Accessories and Modifications.
Chevrolet Cobalt Service & Repair Manual. Engine Leak Inspection
A visual inspection must always
be performed to confirm the presence of aftermarket components, potential
collision damage, or areas of concern.
Before moving the vehicle inspect
underneath for signs of oil on the ground to aid in identifying the leaks
location.
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