GMC 2001 Sierra - Manual (Page 89)

2-6
Your vehicle has one
double
- sided key for the
ignition and all door locks.
Your vehicle may also have
a key that locks and unlocks
only the center floor
console (if equipped).
If you ever lose your keys, your dealer will be able to
assist you with obtaining replacements.
Door Locks
CAUTION:
Unlocked doors can be dangerous.
D Passengers
-- especially children -- can
easily open the doors and fall out of a
moving vehicle. When a door is locked, the
handle won’t open it. You increase the
chance of being thrown out of the vehicle in
a crash if the doors aren’t locked. So, wear
safety belts properly and lock the doors
whenever you drive.
D Young children who get into unlocked
vehicles may be unable to get out. A child
can be overcome by extreme heat and can
suffer permanent injuries or even death
from heat stroke. Always lock your vehicle
whenever you leave it.
D Outsiders can easily enter through an
unlocked door when you slow down or stop
your vehicle. Locking your doors can help
prevent this from happening.