2014-2018 Mazda 3 4 Door When Driving -> Forward Obstruction Warning (FOW) User Manual
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When Driving -> Forward Obstruction Warning (FOW) for Your Mazda 3 4 Door Third Generation (2014-2018)

When Driving  
Forward Obstruction Warning (FOW)  
Forward Obstruction Warning (FOW)*  
Forward Obstruction Warning (FOW) is a system which alerts the driver of a possible  
collision using an indicator and warning sound in the instrument cluster while the vehicle  
is being driven at about 15 km/h or faster (10 mph or faster) and the system's radar sensor  
determines that your vehicle may hit a vehicle or obstruction ahead.  
WARNING  
Do not rely completely on the Forward Obstruction Warning (FOW) system and always  
drive carefully:  
Forward Obstruction Warning (FOW) is only designed to reduce damage in the event of  
a collision. The ability to detect an obstruction is limited depending on the obstruction,  
weather conditions, or traꢀc conditions. Therefore, if the accelerator pedal or brake  
pedal is mistakenly operated it could result in an accident. Always verify the safety of the  
surrounding area and depress the brake pedal or accelerator pedal while keeping a safe  
distance from vehicles ahead or on-coming vehicles.  
NOTE  
ꢀyꢀThe Forward Obstruction Warning (FOW) system operates when all of the following  
conditions are met:  
ꢀyꢀThe ignition is switched ON.  
ꢀyꢀThe Forward Obstruction Warning (FOW) system is on.  
ꢀyꢀThe vehicle speed is about 15 km/h (10 mph) or faster.  
ꢀyꢀThe relative speed between your vehicle and the vehicle or obstruction ahead is about  
15 km/h (10 mph) — 145 km/h (90 mph).  
ꢀyꢀThe Forward Obstruction Warning (FOW) system may not operate under the following  
conditions:  
ꢀyꢀIf there is the possibility of hitting only a part of a vehicle or obstruction ahead.  
ꢀyꢀIf the vehicle is accelerated rapidly and it comes close to a vehicle ahead.  
ꢀyꢀThe DSC is malfunctioning.  
ꢀyꢀThe vehicle is driven at the same speed as the vehicle ahead.  
ꢀyꢀThe accelerator pedal is depressed.  
ꢀyꢀThe brake pedal is depressed.  
ꢀyꢀThe steering wheel is being operated.  
ꢀyꢀThe selector lever is being operated.  
ꢀyꢀThe turn signal is being used.  
*Some models.  
4
–115  
When Driving  
Forward Obstruction Warning (FOW)  
ꢀyꢀAlthough the objects which activate the system are 4-wheeled vehicles, the radar sensor  
could detect the following objects, determine them to be an obstruction, and operate the  
Forward Obstruction Warning (FOW) system.  
ꢀyꢀObjects on the road at the entrance to a curve (including guardrails and snow banks).  
ꢀyꢀA vehicle appears in the opposite lane while cornering or rounding a curve.  
ꢀyꢀWhen crossing a narrow bridge.  
ꢀyꢀWhen passing under a low gate or through a tunnel or narrow gate.  
ꢀyꢀWhen entering an underground parking area.  
ꢀyꢀMetal objects, bumps, or protruding objects on the road.  
ꢀyꢀIf you suddenly come close to a vehicle ahead.  
ꢀyꢀWhen driving in areas where there is high grass or forage.  
ꢀyꢀTwo-wheeled vehicles such as motorbikes or bicycles.  
ꢀyꢀPedestrians or non-metallic objects such as standing trees.  
ꢀyꢀWhen the system operates, the user is notified by the flashing Forward Obstruction  
Warning (FOW) indicator light (red) and the active driving display.  
ꢀyꢀThe Forward Obstruction Warning (FOW) warning light (amber) turns on when the  
system has a malfunction.  
ꢀ (page 4-21)  
4
–116  
When Driving  
Forward Obstruction Warning (FOW)  
Forward Obstruction Warning  
(FOW) Indicator Light (Red)  
Radar Sensor Handling  
The Forward Obstruction Warning (FOW)  
radar sensor is installed on the backside of  
the radiator grille.  
If the Forward Obstruction Warning  
(FOW) is operating, the indicator light  
(red) flashes.  
Refer to Radar Sensor on page 4-64.  
Collision Warning  
If there is the possibility of a collision  
with a vehicle or obstruction ahead, the  
beep sounds continuously and a warning is  
indicated in the display.  
Stopping The Forward  
Obstruction Warning (FOW)  
System Operation  
The Forward Obstruction Warning (FOW)  
system can be deactivated.  
Refer to Personalization Features on page  
9-12.  
When the Forward Obstruction Warning  
(FOW) system is turned off, the Forward  
Obstruction Warning (FOW) OFF  
indicator light turns on.  
4
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