2017-2020 Volkswagen Golf 4 Door Driver assistance systems -> Blind Spot Monitor with Rear Traffic Alert User Manual
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Driver assistance systems -> Blind Spot Monitor with Rear Traffic Alert for Your Volkswagen Golf 4 Door Seventh Generation (2017-2020)

this area unintentionally, for example, when leaving the current drive lane without activating a turn signal, the system will warn you with a steering correction. The  
driver can override the steering correction at any time.  
Reminder to resume steering  
If the system does not detect steering activity by the driver, a warning chime and a message in the instrument cluster display remind you to resume steering the  
vehicle.  
When changing lanes  
For vehicles without Blind Spot Monitor: Lane Assist will not warn you of a lane change if you activate the turn signal, because the system will assume that the lane  
change is intended.  
For vehicles with Blind Spot Monitor: When Lane Assist is active, within system limits, the driver will be warned of a critical situation during a lane change with a  
steering correction, even if the turn signal is switched on ⇒ Blind Spot Monitor with Rear Traffic Alert ꢀ.  
Steering wheel vibration  
Certain situations will cause the steering wheel to vibrate and demand active steering intervention by the driver.  
Switching Lane Assist on and off  
In the Assist systems menu in the instrument cluster display, select Lane Assist⇒ Assist systems menuꢀ.  
OR: Press the driver assist systems button on the turn signal lever and select Lane Assist⇒ Driver assistance systems buttonꢀ.  
OR: You can turn Lane Assist on and off in the Infotainment system by pressing the  
keys ⇒ Infotainment system operation and displays ꢀ.  
button followed by the Vehicle,  
, and Assistance systems function  
The indicator light in the instrument cluster shows the status of the system.  
Automatic deactivation: The Lane Assist system can switch off automatically if there is a system fault. The indicator light goes out.  
Automatic deactivation of Lane Assist (yellow indicator light comes on)  
Under certain circumstances Lane Assist can be deactivated automatically:  
When the speed of your vehicle is less than about 40 mph (65 km/h).  
If the system cannot recognize lane markings correctly, for example, in construction sites, on bad roads, when visibility is bad, or when the camera area is  
covered.  
When ESC is switched off or when ESC Sport mode is switched on ⇒ Switching Anti-Slip Regulation (ASR) and ESC Sport mode on and off ꢀ.  
If there is no lane marking or if the distance to the nearest lane marking is too great.  
In narrow curves.  
If your driving style is very sporty or dynamic (the system may switch off temporarily).  
If the system does not detect any clear steering activity by the driver over an extended period.  
Before starting to drive, always make sure that the area of the camera ⇒ Fig. 134ꢀ is not covered. Keep this area clean at all times.  
When to temporarily deactivate Lane Assist  
Read and follow the introductory information and safety information first ⇒ Introduction to the subjectꢀ  
Please deactivate Lane Assist under following conditions ⇒ ꢀ:  
In complex traffic situations when it is necessary for the driver to pay special attention.  
When driving with a sporty or dynamic driving style.  
Under bad weather conditions and/or poor visibility.  
On bad roads or on roads with no or barely visible side markings.  
When the vehicle is off road, for example, on construction sites or on race tracks.  
If the camera's field of view is covered by dirt, ice, or snow. In this case, clean the area in front of the camera as soon as possible or deactivate the system.  
Before the top of a hill.  
WARNING  
Not deactivating Lane Assist in the situations mentioned above can cause collisions, other accidents and serious personal injury.  
Blind Spot Monitor with Rear Traffic Alert  
193  
Introduction to the subject  
In this chapter you will find information on the following subjects:  
⇒ Indicator lightsꢀ  
⇒ How Blind Spot Monitor worksꢀ  
⇒ Driving situationsꢀ  
⇒ Rear Traffic Alertꢀ  
⇒ Using the Blind Spot Monitor with Rear Traffic Alert ꢀ  
Depending on vehicle equipment, the vehicle may be equipped with the Blind Spot Monitor system.  
The Blind Spot Monitor assists the driver by using radar sensors to monitor the traffic in the blind spot detection area as well as traffic behind the vehicle.  
The integrated Rear Traffic Alert system can help the driver when backing out of parking spaces and when maneuvering.  
The Blind Spot Monitor is only designed for use on paved roads.  
WARNING  
The Blind Spot Monitor with Rear Traffic Alert technology cannot overcome the laws of physics and limits of the system. Careless or unintentional use of the  
Blind Spot Monitor and Rear Traffic Alert may result in accidents and serious injuries.  
The Blind Spot Monitor with Rear Traffic Alert is not a substitute for careful and attentive driving.  
Always adjust your driving style to road, traffic, weather, and visibility conditions.  
Always keep both hands on the steering wheel so that you are prepared to steer at any time.  
Pay attention to and heed the indicator lights in the outside mirrors and in the instrument cluster display.  
The Blind Spot Monitor may react to certain equipment installed on the side of the road, such as high or offset guardrails. False warnings may result.  
Never use the Blind Spot Monitor with Rear Traffic Alert on unpaved roads. The Blind Spot Monitor with Rear Traffic Alert was designed only for paved  
roads.  
Always pay attention to the area surrounding your vehicle.  
Never use the Blind Spot Monitor with Rear Traffic Alert if the radar sensors are dirty, obstructed, or damaged; the function of the system may be impaired.  
Sunlight may reduce the visibility of the indicator light in the outside mirror.  
NOTE  
The radar sensors in the rear bumper can be damaged or become misaligned in low-speed impacts and parking maneuvers. The system can switch itself  
off or may be impaired as a result.  
Always keep the rear bumper clean and free of snow and ice so that the radar sensors can function properly. Do not cover the radar sensor area.  
The rear bumper may only be painted with vehicle paint that is approved by Volkswagen. Other paints may impair the function of the Blind Spot Monitor or  
cause it to malfunction.  
If the system does not work as described in this chapter or if your vehicle was involved in a collision, do not use the Blind Spot Monitor with Rear Traffic Alert.  
See an authorized Volkswagen dealer or an authorized Volkswagen Service Facility to have the system checked.  
Certain settings can be saved in the personalized user profiles ⇒ Personalized user profilesꢀ.  
Indicator lights  
Read and follow the introductory information and safety information first ⇒ Introduction to the subjectꢀ  
Indicator light in the outside mirror:  
Lights up  
Possible cause  
Lights up briefly: The Blind Spot Monitor is active and ready.  
Lights up and stays on: The Blind Spot Monitor detects a vehicle in the blind spot.  
194  
Flashes  
Possible cause  
A vehicle is detected in the blind spot, and the turn signal on that side of the vehicle is switched on  
⇒
ꢀ.  
In vehicles with Lane Assist: A vehicle is detected in the blind spot, and your vehicle is leaving the current driving lane. The turn  
signal does not have to be switched on.  
When the ignition is switched on, several warning and indicator lights come on briefly for a function check. They go out after a few seconds.  
If the indicator light in the outside mirror does not light up, the Blind Spot Monitor does not currently detect a vehicle in the monitored area around your vehicle  
ꢀ.  
⇒
The brightness of the indicator lights in the outside mirrors are dimmed when the headlights are switched on (night mode).  
WARNING  
Failure to heed warning and indicator lights and instrument cluster text messages can result in a collision and serious personal injury.  
Never ignore warning and indicator lights or text WARNINGS.  
Always heed warning and indicator lights and take action where necessary.  
NOTE  
Failure to heed warning and indicator lights or text WARNINGS can result in vehicle damage.  
How Blind Spot Monitor works  
Fig. 135 In the outside mirrors: Indicator lights for the Blind Spot Monitor.  
Read and follow the introductory information and safety information first ⇒ Introduction to the subjectꢀ  
The Blind Spot Monitor uses sensors in the rear bumper to monitor the blind spot detection area and the area behind your vehicle and informs you via indicator  
lights in the outside mirrors. The system measures the distance to other vehicles and the difference in speed between your vehicle and other vehicles. The Blind  
Spot Monitor only works at speeds above about 9 mph (15 km/h).  
The Blind Spot Monitor automatically deactivates when driving through tight curves in the road. In this situation, the deactivation occurs without a driver information  
message. No warnings appear in the mirror glass or in the instrument cluster display. After driving through the curve, the Blind Spot Monitor automatically  
reactivates and the system is available again.  
Indicator lights in the outside mirrors  
The indicator light ⇒ Fig. 135ꢀ in the glass for the respective outside mirror informs you about traffic to the rear, if the system interprets the situation as critical. The  
indicator light in the driver side outside mirror informs you about traffic to the left, and the indicator light in the passenger side outside mirror informs you about traffi  
to the right of your vehicle.  
Tinting the side windows or aftermarket tinting films can interfere with the indicator lights in the outside mirrors or cause false readings.  
Keep the glass in the outside mirrors clean and free of snow and ice, and do not cover the mirrors with stickers or other objects.  
Lane Keeping System (Lane Assist)  
For vehicles with Lane Keeping System (Lane Assist): When Lane Assist ⇒ Lane Keeping system (Lane Assist) ꢀ is active, within system limits, the driver will be  
warned of a critical situation during a lane change with a steering correction. This happens even if the turn signal is switched on. If the driver ignores the steering  
correction, the steering wheel will vibrate as an additional warning.  
Radar sensors  
The radar sensors are behind the rear bumper on the left and right. They are not visible from outside the vehicle. They monitor an area about 21 yards (20 meters)  
behind the vehicle as well as the blind spots on the left and right sides of the vehicle. The monitored area next to the vehicle is about one lane wide.  
The width of the lane is not detected individually on each road, but is preprogrammed into the system. Because of this, the indicators may be incorrect when driving  
195  
on narrow roads or driving in the center of two lanes. Vehicles that are two lanes away from you or stationary objects such as guard rails may also be detected and  
cause a false warning.  
Driving situations  
Fig. 136 Driving situation when passing with traffic behind your vehicle. Arrow: Blind Spot Monitor indicator light in the driver side mirror.  
Fig. 137 Driving situation when passing and merging into the lane. Arrow: Blind Spot Monitor indicator light in the passenger side mirror.  
Read and follow the introductory information and safety information first ⇒ Introduction to the subjectꢀ  
The following situations result in a signal in the outside mirror ⇒ Fig. 136ꢀ (arrow) or ⇒ Fig. 137ꢀ (arrow):  
If your vehicle is being passed by another vehicle ⇒ Fig. 136ꢀ.  
When passing another vehicle ⇒ Fig. 137ꢀ, and the difference in speed between the two vehicles is no more than about 6 mph (10 km/h). There is no signal if  
the passing speed is clearly faster.  
The faster another vehicle approaches, the earlier the signal in the outside mirror appears, because the Blind Spot Monitor reacts to the difference in speed betwee  
your vehicle and other vehicles. Therefore, the signals may trigger for different vehicles at different times, even when the distance to those vehicles is the same.  
The Blind Spot Monitor only works at speeds above about 9 mph (15 km/h). The system switches off automatically when the vehicle speed drops below about  
6 mph (10 km/h).  
Physical and system limitations  
In certain situations, the Blind Spot Monitor may not interpret the traffic situation correctly. These situations may include:  
When driving in tight curves.  
When the width of the lanes differs.  
When there is a rise in the road surface.  
When there are poor weather conditions.  
When certain types of equipment are on the side of the road, such as high or offset guard rails.  
Rear Traffic Alert  
Fig. 138 Rear Traffic Alert: Monitored area around the vehicle that is backing out of a parking space.  
196  
Fig. 139 Rear Traffic Alert display (may vary depending on vehicle equipment).  
Read and follow the introductory information and safety information first ⇒ Introduction to the subjectꢀ  
Key to ⇒ Fig. 139ꢀ:  
The red area indicates that the system has detected traffic behind the vehicle.  
The yellow area indicates that the system has possibly detected traffic behind the vehicle.  
There is a system malfunction in the scanned area (not pictured).  
The Rear Traffic Alert system uses the radar sensors in the rear bumper to monitor the traffic crossing behind your vehicle when you are backing out of a parking  
space or maneuvering, for example, in traffic situations with poor visibility.  
A warning sounds if the system detects approaching traffic behind your vehicle when backing up ⇒ Fig. 138ꢀ (red area).  
Vehicles without Park Distance Control (PDC): There is a warning tone and a text message in the instrument cluster display.  
Vehicles with Park Distance Control (PDC): There is a continuous warning tone from the PDC. If PDC is deactivated, a warning for the driver may not be  
possible, and therefore the Rear Traffic Alert is also deactivated.  
Automatic braking  
If Rear Traffic Alert detects an approaching vehicle and the driver does not press the brake pedal, the system can intervene with automatic braking.  
Rear Traffic Alert assists the driver with harsh automatic braking that could help prevent or reduce damage that can result from a collision. Automatic braking occurs  
while backing up at speeds between 1–7 mph (1–12 km/h). Once the system detects that your vehicle is not moving, it keeps the vehicle from moving for up to  
2 seconds.  
After automatic braking, about 10 seconds must pass before the system can brake automatically again.  
The driver can interrupt the automatic braking and take control of the vehicle by pressing firmly on the accelerator or brake pedal.  
WARNING  
The Blind Spot Monitor with Rear Traffic Alert technology cannot overcome the laws of physics and limits of the system. Careless or unintentional use of the  
Blind Spot Monitor and Rear Traffic Alert may result in accidents and serious injuries.  
The Rear Traffic Alert is not a substitute for careful and attentive driving.  
Never use the system when visibility is limited or in confusing traffic situations, for example, on heavily traveled roads or when there are multiple lanes.  
Always watch for people, especially small children, bicycles, animals, and objects, because the Rear Traffic Alert may not always be able to detect them.  
Rear Traffic Alert cannot detect people, animals, and things that are moving slowly or not at all.  
The Rear Traffic Alert does not always brake the vehicle to a complete stop.  
The harsh automatic braking will be uncomfortable for many people, and if you or your passengers have special conditions or sensitivities, particularly in  
the neck, you may want to switch off Rear Traffic Alert.  
Using the Blind Spot Monitor with Rear Traffic Alert  
Read and follow the introductory information and safety information first ⇒ Introduction to the subjectꢀ  
Switching the Blind Spot Monitor and Rear Traffic Alert on and off  
On appropriately equipped vehicles, you can turn the Blind Spot Monitor and Rear Traffic Alert on and off in the Assist systems menu in the Volkswagen  
Information System.  
Open the Assist systems menu ⇒ Assist systems menuꢀ.  
Blind Spot  
Rear Traffic  
Switching the Blind Spot Monitor and Rear Traffic Alert on and off in the Infotainment system  
Press the  
button.  
197  

Related Topics

Driver assistance systems
Cruise control Adaptive Cruise Control (ACC) Forward Collision Warning (Front Assist) Lane Keeping system (Lane Assist)

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