2017 MAZDA MODEL 3 4-DOOR Owners Manual

3–29
Before Driving
Fuel and Emission
Emission Control System
This vehicle is equipped with an emission control system (the catalytic converter is
part of this system) that enables the vehicle to comply with existing e\
xhaust emissions
requirements.
WARNING
Never park over or near anything flammable:
Parking over or near anything flammable, such as dry grass, is dangerous. Even with the
engine turned off, the exhaust system remains very hot after normal use and could ignite
anything flammable. A resulting fire could cause serious injury or death.
CAUTION
Ignoring the following precautions could cause lead to accumulate on the catalyst inside
the converter or cause the converter to get very hot. Either condition will damage the
converter and cause poor performance.
 USE ONLY UNLEADED FUEL. Do not drive your Mazda with any sign of engine malfunction. Do not coast with the ignition switched off. Do not descend steep grades in gear with the ignition switched off. Do not operate the engine at high idle for more than 2 minutes. Do not tamper with the emission control system. All inspections and adjustments must
be made by a qualified technician. Do not push-start or pull-start your vehicle.
NOTE
 Under U.S. federal law , any modification to the original-equipment emission control
system before the first sale and registration of a vehicle is subject to penalties. In some
states, such modification made on a used vehicle is also subject to penalties.
 While the engine is off, the sound of a valve opening and closing can be\
hear d at the rear
of the vehicle, however this does not indicate an abnormality. The vehicle has a self-
checking device and it operates while the engine is off.
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3–30
Before Driving
Fuel and Emission
Engine Exhaust (Carbon monoxide)
WARNING
Do not drive your vehicle if you smell exhaust gas inside the vehicle:
Engine exhaust gas is dangerous. This gas contains carbon monoxide (CO), which is
colorless, odorless, and poisonous. When inhaled, it can cause loss of consciousness and
death. If you smell exhaust gas inside the vehicle, keep all windows fully open and contact
an Authorized Mazda Dealer immediately.
Do not run the engine when inside an enclosed area: Running the engine inside an enclosed area, such as a garage, is dangerous. Exhaust
gas, which contains poisonous carbon monoxide, could easily enter the cabin. Loss of
consciousness or even death could occur.
Open the windows or adjust the heating or cooling system to draw fresh air when
idling the engine: Exhaust gas is dangerous. When the vehicle is stopped with the windows closed and
the engine running for a long time even in an open area, exhaust gas, which contains
poisonous carbon monoxide, could enter the cabin. Loss of consciousness or even death
could occur.
Clear snow from underneath and around your vehicle, particularly the tail pipe, before
starting the engine: Running the engine when a vehicle is stopped in deep snow is dangerous. The exhaust
pipe could be blocked by the snow, allowing exhaust gas to enter the cabin. Because
exhaust gas contains poisonous carbon monoxide, it could cause loss of consciousness or
even death to occupants in the cabin.
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3–31
Before Driving
Fuel and Emission
Fuel-Filler Lid and Cap
WARNING
When removing the fuel-filler cap,
loosen the cap slightly and wait for any
hissing to stop, then remove it:Fuel spray is dangerous. Fuel can
burn skin and eyes and cause illness
if ingested. Fuel spray is released
when there is pressure in the fuel tank
and the fuel-filler cap is removed too
quickly.
Before refueling, stop the engine, and
always keep sparks and flames away
from the filler neck: Fuel vapor is dangerous. It could be
ignited by sparks or flames causing
serious burns and injuries.
Additionally, use of the incorrect fuel-
filler cap or not using a fuel-filler cap
may result in a fuel leak, which could
result in serious burns or death in an
accident.
Do not continue refueling after the fuel
pump nozzle shuts off automatically: Continuing to add fuel after the
fuel pump nozzle has shut off
automatically is dangerous because
overfilling the fuel tank may cause
fuel overflow or leakage. Fuel overflow
and leakage could damage the vehicle
and if the fuel ignites it could cause a
fire and explosion resulting in serious
injury or death.
CAUTION
(U.S.A. and Canada)
Always use only a genuine Mazda fuel-
filler cap or an approved equivalent,
available at an Authorized Mazda
Dealer. The wrong cap can result in
a serious malfunction of the fuel and
emission control systems. It may also
cause the check engine light in the
instrument cluster to illuminate.
Fuel-Filler Lid
To open, pull the remote fuel-filler lid
release.
To close, press the fuel-filler lid until it
locks securely.
Remote fuel-filler lid release
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3–32
Before Driving
Fuel and Emission
Fuel-Filler Cap
To remove the fuel-filler cap, turn it
counterclockwise.
Attach the removed cap to the inner side
of the fuel lid.
To close the fuel-filler cap, turn it
clockwise until a click is heard.
Open
Close
CAUTION
(U.S.A. and Canada)
If the check fuel cap warning light
illuminates, the fuel-filler cap may not
be properly installed. If the warning
light illuminates, park your vehicle
safely off the right-of-way, remove the
fuel-filler cap and reinstall it correctly.
After the cap has been correctly
installed, the fuel cap warning light
may continue to illuminate until a
number of driving cycles have been
completed. A drive cycle consists of
starting the engine (after four or more
hours with the engine off ) and driving
the vehicle on city and highway roads.
Continuing to drive with the check
fuel cap warning light illuminated
could cause the check engine light to
illuminate as well.
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3–33
Before Driving
Steering Wheel
*Some models.
Steering Wheel
WARNING
Never adjust the steering wheel while
the vehicle is moving:Adjusting the steering wheel while
the vehicle is moving is dangerous.
Moving it can very easily cause the
driver to abruptly turn to the left or
right. This can lead to loss of control or
an accident.
Steering Wheel Adjustment
To change the angle or length of the
steering wheel:
1. Stop the vehicle, and then pull down
the lock release lever under the steering
column.

Lock release le ver
2. Tilt the steering wheel and/or adjust the
steering column length to the desired
positions, then push the lever up to lock
the column.
3. Attempt to push the steering wheel
up and down to make sure it's locked
before driving.
Heated Steering Wheel*
The grips on the left and right of the
steering wheel can be warmed up.
Heating areaHeated steering
wheel switch
The ignition must be switched ON.
Press the switch to turn on the heated
steering wheel. The heated steering wheel
operates for about 30 minutes and then
turns off automatically.
The indicator light illuminates when the
heater is operating.
To turn off the heated steering wheel
before the 30 minutes has elapsed, press
the switch again.
CAUTION
The following types of persons should
be careful not to touch the steering
wheel. Otherwise, it could cause a low-
temperature burn.
 Infants, small children, elderly
people, and physically challenged
people
 People with delicate skin People who are excessively fatigued People who are intoxicated People who have taken sleep-
inducing medicine such as sleeping
pills or cold medicine
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3–34
Before Driving
Mirrors
Mirrors
Before driving, adjust the inside and
outside mirrors.
Outside Mirrors
WARNING
Be sure to look over your shoulder
before changing lanes:Changing lanes without taking
into account the actual distance of
the vehicle in the convex mirror is
dangerous. You could have a serious
accident. What you see in the convex
mirror is closer than it appears.
Mirror type
Flat type (driver's side)
Flat surface mirror.
Convex type (front passenger side)
The mirror has single curvature on its
surface.
Power mirror adjustment
The ignition must be switched to ACC or
ON position.
To adjust:
1. Rotate the mirror switch to the left or
right
to choose the left or right side
mirror.
2. Press the mirror switch in the
appropriate direction.
Center position
Mirror switch
After adjusting the mirror, lock the
control by rotating the switch in the center
position.
Folding mirror
WARNING
Always return the outside mirrors to
the driving position before you start
driving:
Driving with the outside mirrors folded
in is dangerous. Your rear view will
be restricted, and you could have an
accident.
Manually fold the outside mirror rearward
until it is flush with the vehicle.
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3–35
Before Driving
Mirrors
Rearview Mirror
WARNING
Do not stack cargo or objects higher
than the seatbacks: Cargo stacked higher than the
seatbacks is dangerous. It can block
your view in the rearview mirror, which
might cause you to hit another car
when changing lanes.
Rearview mirror adjustment
Before driving, adjust the rearview mirror
to center on the scene through the rear
window.
NOTE
For the manual day/night mirror, perform
the adjustment with the day/night lever in
the day position.
Reducing glare from headlights
Manual day/night mirror
Push the day/night lever forward for day
driving. Pull it back to reduce glare of
headlights from vehicles at the rear.
Night
Day Day/Night le
ver
Auto-dimming mirror
The auto-dimming mirror automatically
reduces the glare of headlights from
vehicles at the rear when the ignition is
switched ON.
(With Homelink wireless control
system)
Press the OFF button (
) to cancel the
automatic dimming function. The indicator
light will turn off.
To reactivate the automatic dimming
function, press the ON button (
). The
indicator light will illuminate.
Indicator lightOFF button
ON button
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3–36
Before Driving
Mirrors
(Without Homelink wireless control
system)
Press the ON/OFF button
to cancel the
auto-dimming function. The indicator light
will turn off.
To reactivate the auto-dimming function,
press the ON/OFF button
. The indicator
light will illuminate.
ON/OFF buttonIndicator light
NOTE
 Do not use glass cleaner or suspend
objects on or around the light sensor.
Otherwise, light sensor sensitivity
will be affected and may not operate
normally.
(With Homelink wireless control
system)

Light sensor
(Without Homelink wireless control
system)

Light sensor
 (With Homelink wireless control
system)
For information regarding the 3 buttons
(,,) on the auto-dimming
mirror.
Refer to HomeLink W ireless Control
System on page 4-57. The auto-dimming function is canceled
when the ignition is switched ON and
the shift lever is in reverse (R).
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