Page 505 of 583

▼Low Fuel Warning Indication/
Warning Light
The warning indication/warning light
displays/turns on wh
en the ignition is
switched ON and the remaining fuel is
about 9 L (2.3 US gal, 1.9 Imp gal) or
the remaining distance to empty is 50
km (31 miles) or shorter. The warning
light flashes when the vehicle
continues to be driven with the
warning indication/warning light
displayed/turned on and the
remaining fuel in the tank is near
empty.
NOTE
The light illumination timing may vary
because fuel inside the fuel tank moves
around according to the driving
conditions and the vehicle posture.
Action to be taken
Add fuel. If the light is flashing, refuel
as soon as possible.
▼ 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 3-30.
▼
Engine Oil Level Warning
Indication/Warning Light
This warning light indicates that the
engine oil level is around the MIN
mark (page 6-18).
CAUTION
Do not continue to drive the vehicle
with the engine oil level warning
indication/warning light displayed/
turned on. If the vehicle continues to
be driven with an
insufficient amount
of engine oil, it could cause damage to
the engine.
Action to be taken
Add 1 L (0.26 US gal, 0.22 Imp gal) of
engine oil (page 6-16).
▼ Seat Belt Warning Indication/
Warning Light (Front seat)
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 if the
vehicle is driven at about 20 km/h (12
mph) or faster, or about 10 km/h (6
mph) or faster for a continuous 30
seconds, with the seat belt unfastened,
the warning light flashes for a certain
period. After a short time, the warning
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-28
CX-50_8KB8-EA-22A_Edition2_new
2022-1-6 14:55:18
Page 516 of 583

▼Electric Parking Brake (EPB)
War n in g Be ep
The warning buzzer is activated under
the following conditions:
The vehicle is driven with the parking
brake applied.
The Electric Parking Brake (EPB)
switch is pulled while the vehicle is
driven.
You attempt to start driving the
vehicle while the conditions for
releasing the Electric Parking Brake
(EPB) automatically have not been
met.
▼AUTOHOLD Warning Beep
Warning light flashes/message is
displayed and beep sound is activated
simultaneously for about 5 seconds
when using AUTOHOLD function or
when AUTOHOLD switch is operated.
Because a problem with AUTOHOLD
function has occurred, AUTOHOLD
function does not operate even if
AUTOHOLD switch is operated.
If the warning light flashes/message is
displayed and the beep sound is
activated simultaneously, have your
vehicle inspected at an Authorized
Mazda Dealer.
▼
Vehicle Problem Warning Beep
If any of the following problems occur,
a warning beep is activated. Check the
information regarding the warning
indication in the instrument cluster or
on the center display.
Automatic transmission problemIncrease in automatic transmission
internal temperature
Brake
fluid amount decreaseEngine oil level sensor problemElectric Parking Brake (EPB) problemEngine hydraulic pressure decreaseEngine coolant temperature increaseEngine system problem
▼Blind Spot Monitoring (BSM)
System Warning Beep*
The Blind Spot Monitoring (BSM)
warning beep operates when the turn
signal lever is operated to the side
where the Blind Spot Monitoring
(BSM) warning light is illuminated.
▼Rear Cross
Tra ffi c Alert (RCTA)
Warning Beep*
The Rear Cross Traffic Alert (RCTA)
warning beep is activated if there is a
possibility of collision with a vehicle
approaching from the rear on the left
and right sides of the vehicle.
▼ Lane/Road Departure Warning
Beep*
The warning beep is activated when
the system determines that the vehicle
may depart from the lane or the road.
Check whether the vehicle has not
deviated from the driving lane/road.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.7-39
CX-50_8KB8-EA-22A_Edition2_new
2022-1-6 14:55:18
Page 569 of 583

Specifications
▼Engine
Item Specification
SKYACTIV-G 2.5 SKYACTIV-G 2.5T
Type DOHC-16V in-line, 4-cylinder
Bore × Stroke 89.0 × 100 mm (3.50 × 3.94 in)
Displacement 2,488.5 ml (2,488.5 cc)
Compression ratio 13.010.5
▼Electrical System
Classification
Specification
Battery
*1With i-stop LN3 EFB*2
Without i-stop12V-60Ah/20HR
Spark-plug
number SKYACTIV-G 2.5
Mazda Genuine spark
plug
*3PE5R-18-110 or PE5S-18-110
SKYACTIV-G 2.5T Mazda Genuine spark
plug
*3PY8V-18-110
*1 Check the battery installed on the vehicle and us
e a battery with an equal or higher performance.
However, the performance of the battery may vary even among the same battery types, consult an
Authorized Mazda Dealer for replacement.
*2 LN3 EFB is designed for i-stop system (FOR STOP & START). Only LN3 EFB should be used to ensure correct operation of i-stop system (FOR STOP & START). Consult an Authorized Mazda Dealer for
details.
*3 This spark plug provides the SKYACTIV-G engine with optimum performance. Contact an AuthorizedMazda Dealer for details.
CAUTION
When cleaning the iridium plugs, do no t use a wire brush. The fine particulate
coating on the iridium alloy and platinum tips could be damaged.
▼ Lubricant Quality
Lubricant
Classification
Engine oil Refer to Recommended Oil on page 6-16.
Coolant FL-22 type
Automatic transmission fluid
*1Mazda Genuine ATF FZ
Transfer case oil
*2Mazda Long Life Hypoid Gear Oil SG1
Rear differential oil
*2Mazda Long Life Hypoid Gear Oil SG1
Specifications
Specifications
9-4
CX-50_8KB8-EA-22A_Edition2_new
2022-1-6 14:55:18
Page 570 of 583

LubricantClassification
Brake fluid SAE J1703 or FMVSS116 DOT-3
*1 Periodic replacement is unnecessary.*2 Replacement is necessary when the component is submerged in water.
NOTE
Refer to Introduction on (page 6-2) for owner's responsibility in protecting your
investment.
▼Capacities
(Approximate Quantities)
Item
Capacity
Engine oil SKYACTIV-G 2.5
With oil filter re-
placement
4.5 L (4.8 US qt, 4.0 Imp qt)
Without oil filter re-
placement 4.3 L (4.5 US qt, 3.8 Imp qt)
SKYACTIV-G 2.5T With oil filter re-
placement
4.8 L (5.1 US qt, 4.2 Imp qt)
Without oil filter re-
placement 4.6 L (4.9 US qt, 4.0 Imp qt)
Coolant SKYACTIV-G 2.5
6.8 L (7.2 US qt, 6.0 Imp qt)
SKYACTIV-G 2.5T For engine
8.4 L (8.9 US qt, 7.4 Imp qt)
For water-cooled
charge air cooler 1.6 L (1.7 US qt, 1.4 Imp qt)
Automatic
transmission
fluid SKYACTIV-G 2.5
7.7 L (8.1 US qt, 6.8 Imp qt)
SKYACTIV-G 2.5T 8.0 L (8.5 US qt, 7.0 Imp qt)
Transfer case oil 0.40 L (0.42 US qt, 0.35 Imp qt)
Rear differential oil 0.35 L (0.37 US qt, 0.31 Imp qt)
Fuel tank 60.0 L (15.9 US gal, 13.2 Imp gal)
Check oil and
fluid levels with dipsticks or reservoir gauges.
Specifications
Specifications
9-5
CX-50_8KB8-EA-22A_Edition2_new
2022-1-6 14:55:18