2020 MAZDA MODEL CX-5 warning light

The surroundings are dark such as during the night, early evening, or early morning, or
in a tunnel or indoor parking lot.
The illumination brightness of the headlights is reduced or the headlight illumination is
weakened due to dirt or a deviated optical axis.
The target object enters the blind spot of the Forward Sensing Camera (FSC).
A person or object bursts onto the road from the shoulder or cuts right in front of you.
You change lanes and approach a vehicle ahead.
When driving extremely close to the target object.
Tire chains or a temporary spare tire is installed.
The vehicle ahead has a special shape. For example, a vehicle towing a trailer house or
a boat, or a vehicle carrier carrying a vehicle with its front pointed rearward.
If the Forward Sensing Camera (FSC) cannot operate normally due to backlight or fog,
the system functions related to the Forward Sensing Camera (FSC) are temporarily
stopped and the following warn ing lights turn on. However, this does not indicate a
malfunction.
High Beam Control System (HBC) warning light (amber)
Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) warning
indication
Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go
function) warning indication
Smart Brake Support/Smart City Brake Support (SBS/SCBS) warning indication/
warning light (amber)
If the Forward Sensing Camera (FSC) cannot operate normally due to high temperatures,
the system functions related to the Forward Sensing Camera (FSC) are temporarily
stopped and the following warn ing lights turn on. However, this does not indicate a
malfunction. Cool down the area around the Forward Sensing Camera (FSC) such as by
turning on the air conditioner.
High Beam Control System (HBC) warning light (amber)
Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) warning
indication
Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go
function) warning indication
Smart Brake Support/Smart City Brake Support (SBS/SCBS) warning indication/
warning light (amber)
When Driving
i-ACTIVSENSE
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If the Forward Sensing Camera (FSC) detects that the windshield is dirty or foggy, the
system functions related to the Forward Sensing Camera (FSC) are temporarily stopped
and the following warning lights turn on. However, this does not indicate a problem.
Remove the dirt from the windshield or press the defroster switch and defog the
windshield.
High Beam Control System (HBC) warning light (amber)
Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) warning
indication
Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go
function) warning indication
Smart Brake Support/Smart City Brake Support (SBS/SCBS) warning indication/
warning light (amber)
If there are recognizable cracks or damage caused by flying gravel or debris on the
windshield, always have the windshield replaced. Consult an Authorized Mazda Dealer
for replacement.
(With Advanced Smart City Brake Support (Advanced SCBS))
The Forward Sensing Camera (FSC) recognizes pedestrians when all of the following
conditions are met:
The height of a pedestrian is about 1 to 2 meters.
An outline such as the head, both shoulders, or the legs can be determined.
In the following cases, the Forward Sensing Camera (FSC) may not be able to detect
target objects correctly:
Multiple pedestrians are walking, or there are groups of people.
A pedestrian is close to a separate object.
A pedestrian is crouching, lying, or slouching.
A pedestrian suddenly jumps into the road right in front of the vehicle.
A pedestrian opens an umbrella, or is carrying large baggage or articles.
A pedestrian is in a dark location such as during the night, or blends into the
background by wearing clothes matching the background color.
When Driving
i-ACTIVSENSE
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Tire Pressure Monitoring System*
The Tire Pressure Monitoring System (TPMS) monitors the pressure for each tire.
If tire pressure is too low in one or more t ires, the system will inform the driver via the
warning light in the instrument cluster and by the warning beep sound.
Refer to Contact Authorized Mazda Dealer and Have Vehicle Inspected on page 7-26.
Refer to Taking Action on page 7-33.
Refer to Tire Inflation Pressure Warning Beep on page 7-46.

The tire pressure sensors installed on each wheel send tire pressure data by radio signal to
the receiver unit in the vehicle.
Tire pressure sensors
NOTE
When the ambient temperature is low due to seasonal changes, tire temperatures are also
lower. When the tire temperature decreases, the air pressure decreases as well. The TPMS
warning light may illuminate more frequently. Vi sually inspect the tires daily before driving,
and check tire pressures monthly with a tire pressure gauge. When checking tire pressures,
use of a digital tire pressure gauge is recommended.

TPMS does not alleviate your need to check the pressure and condition of all four tires
regularly.
CAUTION
 Each tire, including the spare (if provided), should be checked monthly when cold and
inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle
placard or tire inflation pressure label. (If your vehicle has tires of a different size than the
size indicated on the vehicle placard or tire inflation pressure label, you should determine
the proper tire inflation pressure for those tires.)
When Driving
Tire Pressure Monitoring System
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As an added safety feature, your vehicle has been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires is
significantly under-inflated. Accordingly, when the low tire pressure telltale illuminates, you
should stop and check your tires as soon as possible, and inflate them to the proper
pressure. Driving on a significantly under-inflated tire causes the tire to overheat and can
lead to tire failure. Under-infla tion also reduces fuel efficiency and tire tread life, and may
affect the vehicle's handlin g and stopping ability.
Please note that the TPMS is not a substitute for proper tire maintenance, and it is the
driver's responsibility to maintain correct ti re pressure, even if under-inflation has not
reached the level to trigger illumination of the TPMS low tire pressure telltale.
Your vehicle has also been eq uipped with a TPMS malfunction indicator to indicate when
the system is not operating properly.
The TPMS malfunction indicator is combined with the low tire pressure telltale. When the
system detects a malfunction, the telltale w ill flash for approximately one minute and then
remain continuously illuminated. This sequen ce will continue upon subsequent vehicle
start-ups as long as the malfunction exists. When the malfunction indicator is illuminated,
the system may not be able to detect or signal low tire pressure as intended. TPMS
malfunctions may occur for a variety of reaso ns, including the installation of replacement
or alternate tires or wheels on the vehicle th at prevent the TPMS from functioning properly.
Always check the TPMS malfunction telltale af ter replacing one or more tires or wheels on
your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS to
continue to function properly.
 To avoid false readings, the system samples for a little while before indicating a problem. As
a result it will not instantaneously regis ter a rapid tire deflation or blow out.
▼System Error Activation
When the warning light
flashes, there may
be a system malfunction. Consult an
Authorized Mazda Dealer.
A system error activation may occur in the
following cases:
When there is equipment or a device
near the vehicle using the same radio
frequency as that of the tire pressure
sensors.
When a metallic device such as a
non-genuine navigation system is
equipped near the center of the
dashboard, which may block radio
signals from the tire pressure sensor to
the receiver unit.
When using the following devices in the
vehicle that may cause radio
interference with the receiver unit.
A digital device such as a personal
computer.
A current converter device such as a
DC-AC converter.
When excess snow or ice adheres to the
vehicle, especially around the wheels.
When the tire pressure sensor batteries
are exhausted.
When using a wheel with no tire
pressure sensor installed.
When using tires with steel wire
reinforcement in the sidewalls.
When using tire chains.
When Driving
Tire Pressure Monitoring System
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▼Tires and Wheels
CAUTION
When inspecting or adjusting the tire air
pressures, do not apply excessive force to
the stem part of the wheel unit. The stem
part could be damaged.
Changing tires and wheels
The following procedure allows the TPMS
to recognize a tire pressure sensor's unique
ID signal code whenever tires or wheels
are changed, such as changing to and from
winter tires.
NOTE
Each tire pressure sensor has a unique ID
signal code. The signal code must be
registered with the
TPMS before it can
work. The easiest way to do it is to have
an Authorized Mazda Dealer, change your
tire and complete ID signal code
registration.
When having tires changed at an
Authorized Mazda Dealer
When an Authorized Mazda Dealer,
changes your vehicle's tires, they will
complete the tire pressure sensor ID signal
code registration.

When changing tires yourself
If you or someone else changes tires, you
or someone else can also undertake the
steps for the TPMS to complete the ID
signal code registration.
1. After tires have been changed, switch the ignition ON, then back to ACC or
OFF.
2. Wait for about 15 minutes.
3. After about 15 minutes, drive the vehicle at a speed of at least 25 km/h
(16 mph) for 10 mi nutes and the tire
pressure sensor ID signal code will be
registered automatically.
NOTE
If the vehicle is driven within about 15
minutes of changing tires, the tire pressure
monitoring system warning light will flash
because the sensor ID signal code would
not have been registered. If this happens,
park the vehicle for about 15 minutes,
after which the sensor ID signal code will
register upon driving the vehicle for 10
minutes.
Replacing tires and wheels
CAUTION
 When replacing/repairing the tires or
wheels or both, have the work done by
an Authorized Mazda Dealer, or the tire
pressure sensors may be damaged.
 The wheels equipped on your Mazda are
specially designed for installation of the
tire pressure sensors. Do not use
non-genuine wheels, otherwise it may
not be possible to install the tire pressure
sensors.
Be sure to have the tire pressure sensors
installed whenever tires or wheels are
replaced.
When having a tire or wheel or both
replaced, the following types of tire
pressure sensor installations are possible.
The tire pressure sensor is removed
from the old wheel and installed to the
new one.
When Driving
Tire Pressure Monitoring System
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Selective Catalytic Reduction (SCR) System
The SCR system is designed to reduce nitrogen oxide (NOx) in the exhaust gas and purify
the exhaust gas by injecting it with Diesel Exhaust Fluid (DEF).
WA R N I N G
Be careful not to allow the DEF to run out. If the DEF completely runs out, the SCR system will
not operate normally.
When the remaining DEF is low, a message is displayed on the multi-information display, and
the SCR warning light turns
on/flashes.
Refer to Selective Catalytic Reduction (SCR) System Indications on page 4-228.
In this case, consult an Authorized Mazda De aler. If DEF needs to be replenished, add DEF
following the specified procedure.
Refer to Diesel Exhaust Fluid (DEF) Replenishment on page 6-33.
NOTE
DEF needs to be replenished periodically according to the scheduled maintenance
information.
Normally, the vehicle can be driven about 12,000 km (7,500 miles) before the DEF needs
to be replenished. However, it may need to be replenished earlier depending on the
driving and environmental conditions (such as putting a high load on the engine while
driving or driving the vehicle at high altitudes).
The sound of the SCR system operating may be heard from the area under the vehicle,
however, this does not indicate a problem.
▼ Selective Catalytic Reductio
n (SCR) System Indications
As the remaining amount of Diesel Exhaust Fluid (DEF) lowers, the SCR system notifies
the driver using the following indications.
The vehicle speed may be restricted for a while even if the warning light turns off after
replenishing the DEF. To cancel the vehicle speed restriction immediately, switch the
ignition OFF after the warning light turns off and then switch the ignition ON again.
StatusWarning sound SCR warn-
ing light Multi-information
display indication Driving restric-
tion
Remaining DEF has
decreased
(Maximum driving dis-
tance : 966 km (600
miles) or less) Sound is activated when igni-
tion is switched ON
Turns off
None
When Driving
Selective Catalytic Reduction (SCR) System
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StatusWarning sound SCR warn-
ing light Multi-information
display indication Driving restric-
tion
Remaining DEF is low
(Maximum driving dis-
tance : 644 km (400
miles) or less) Sound is activated when igni-
tion is switched ON
Turns on
Vehicle speed of
80 km/h (50
mph) or slower
Remaining DEF is ex-
tremely low
(Maximum driving dis-
tance : 322 km (200
miles) or less) Sound is activated when igni-
tion is switched ON
Flashes
Vehicle speed of
48 km/h (30
mph) or slower
No remaining DEF
(Maximum driving dis-
tance : 0 km (0 miles)) Sound is activated when re-
maining-distance-to-empty in-
dication is 0 km (0 miles)
Flashes
Creep travel*1
*1 The vehicle speed will be restricted (Creep
travel) the next time the vehicle is driven
after the maximum driving distance reaches 0 km (0 miles).

The following indications are displayed when there is a problem with the SCR system/DEF.
If there is a problem with the SCR system/DEF, consult an Authorized Mazda Dealer.
The vehicle speed may be restricted for a while even if the warning light turned off after
having the vehicle repaired. To cancel the vehicle speed restriction immediately, switch the
ignition OFF after the warning light turns off, and then switch the ignition ON again.
StatusWarning sound SCR warn-
ing light Multi-information
display indication Driving restric-
tion
There is a problem
with the SCR
system/DEF
(Maximum driving dis-
tance : 402 km (250
miles) or less)
Sound is activated when
there is a problem
Sound is activated when igni-
tion is switched ON FlashesNone
Condition in which a
problem with SCR sys-
tem/DEF continues
(Maximum driving dis-
tance : 201 km (125
miles) or less) Sound is activated when igni-
tion is switched ON
Flashes
Vehicle speed of
48 km/h (30
mph) or slower
When Driving
Selective Catalytic Re
duction (SCR) System
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StatusWarning sound SCR warn-
ing light Multi-information
display indication Driving restric-
tion
Condition in which a
problem with SCR sys-
tem/DEF continues
(Maximum driving dis-
tance : 0 km (0 miles)) Sound is activated when re-
maining-distance-to-empty in-
dication is 0 km (0 miles)
Flashes
Creep travel*1
DEF has been replen-
ished over the specified
amount
―
Turns onNone
*1 The vehicle speed will be restricted (Creep travel) the next time the vehicle is driven
after the maximum driving distan ce reaches 0 km (0 miles).
When Driving
Selective Catalytic Reduction (SCR) System
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