Toyota 2011 Matrix Owner's Manual page 31

OVERVIEW
Keyless entry (if equipped)
Locking operation
Panic button
Fuel tank door release and cap
Push
Pull
Store
6
Unlocking operation
Push ONCE: Driver door
TWICE: All doors
NOTE:
If a door is not opened within
60 seconds of unlocking, all doors will
relock for safety.
NOTE: Tighten until one click is
heard. If the cap is not tightened
enough, Check Engine "
indicator may illuminate.
Push and hold
Turn to open
"