Mazda 3 Owner's Manual page 688

If Trouble Arises
When Liftgate/Boot Lid Cannot be Opened
4. Move the lever to the left to fold the
seatback.
5. Move the lever to the left to open the
boot lid.
After performing this emergency measure,
have the vehicle inspected at an expert
repairer, we recommend an Authorised
Mazda Repairer as soon as possible.
7–58
Cover
Lever