Mazda 3 2019 Owner's Manual page 510

If Trouble Arises
Warning/Indicator Lights and Warning Sounds
▼ Check Fuel Cap Warning
Indication/Warning Light
If the check fuel cap warning light
illuminates while driving, the fuel-filler
cap may not be installed properly.
Action to be taken
Stop the engine and reinstall the fuel-filler
cap.
Refer to Refueling on page 3-27.
▼ Engine Oil Level Warning
Indication/Warning Light
This warning light indicates that the
engine oil level is around the MIN mark
(page 6-16).
Action to be taken
Add 1 L (0.3 US gal, 0.2 Imp gal) of
engine oil (page 6-15).
7-34
▼ Seat Belt Warning Indication/
Warning Light (Front seat)
Except Mexico
The seat belt warning light turns on if the
driver or front passenger's seat is occupied
and the seat belt is not fastened with the
ignition switched ON.
If the driver or front passenger's seat belt
is unfastened (only when the front
passenger's seat is occupied) and the
vehicle is driven at a speed faster than
about 20 km/h (12 mph), the warning light
flashes. After a short time, the warning
light stops flashing, but remains
illuminated.
NOTE
The warning light flashes for about 6

seconds if the driver's seat belt is not
fastened when the ignition is switched
ON.
To allow the front passenger occupant

classification sensor to function
properly, do not place and sit on an
additional seat cushion on the front
passenger's seat. The sensor may not
function properly because the additional
seat cushion could cause sensor
interference.
If a small child is seated on the front

passenger's seat, the warning light may
not operate.