Chevrolet 2003 S10 Pickup Owner's Manual page 337

The following steps will tell you how to use the jack and
change a tire.
Removing the Spare Tire and Tools
The jacking equipment you'll need is stored inside the
plastic jack cover which is behind the front seats, either
on
the center of the wall (extended cab) or on the
passenger's side of the wall (regular cab).
The jacking equipment for the crew cab is located
behind the rear seatback on the passenger's side of the
vehicle.
1. To remove it, turn the plastic wing nut
counterclockwise. Remove the jack cover.
2. Turn the wing nut counterclockwise and remove the
wheel blocks, jack and wheel wrench.
Notices Never remove or restow a tire from/to a
stowage position under the vehicle while the vehicle
is supported by a jack. Always tighten the tire
fully against the underside of the vehicle when
restowing.
5-74