Chevrolet 2010 Cobalt Coupe Owner's Manual page 365

When the vehicle has a flat tire (B), use the following
example as a guide to assist you in the placement of
wheel blocks (A).
A. Wheel Block
B. Flat Tire
The following information explains how to use the jack
and change a tire.
The equipment you will need is located in the trunk.
1. Open the trunk. See
2. Lift the trunk liner to access the spare tire and
tools.
.
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