Chevrolet Sonic Owner's Manual: Electric Power Steering
The vehicle has electric power steering. It does not have power steering fluid. Regular maintenance is not required.
If power steering assist is lost due to a system malfunction, the vehicle can be steered, but may require increased effort. See your dealer if there is a problem.
If the steering wheel is turned until it reaches the end of its travel and is held against that position for an extended period of time, power steering assist may be reduced.
If the steering assist is used for an extended period of time, power assist may be reduced.
Normal use of the power steering assist should return when the system cools down.
See your dealer if there is a problem.