Brightness VOLKSWAGEN JETTA 2017 Owners Manual

High Intensity Discharge (HID) headlights provide bright, uniform lighting to help you see and be seen. The light comes from an electric arc between two electrodes in the gas-filled bulb. Over time, the electrodes can wear down and the gap between them will get wider. The HID lamp’s control unit then increases the voltage to keep the arc’s brightness constant. However, the commonly called “Xenon” bulbs will also ultimately burn out. Before they burn out, HID lamps can flicker. A message will then appear in the MFI. This is your reminder to see an authorized Volkswagen dealer or an authorized Volkswagen Service facility to check the headlights.
Turn signal lever and high beam switch

Fig. 78 On the left side of the steering column: Turn signal lever and high beam switch.

Daytime running lights (DRL)
Separate lamps are installed in the headlights or in the front bumper for the daytime running lights (DRL).
The daytime running lights are switched on whenever the ignition is switched on and the light switch is in position / or !54/.
When the daytime running lights are switched on, only these separate lamps come on ⇒ .
If the light switch is in position !54/, a low-light sensor switches the low beams as well as the instru-ment and switch lighting on and off automatically.
Daytime running lights (DRL) parking feature
Some models are equipped with a daytime running lights (DRL) parking feature that switches the daytime running lights off when the parking brake is engaged and the ignition is switched on.

Function Action
Switching the DRL off: – Switch the ignition on. – Turn the light switch to the / position. – Set the parking brake.
Switching the DRL back on: – Release the parking brake.

Static cornering lights
Your vehicle may have fog lights under the front bumper, which on some models are also static cor-nering lights. On some models the static cornering lights may be integrated in the headlights. At speeds below about 25 mph (40 km/h), the light on one side of the vehicle will come on automatically when you turn a corner. If you turn to the right, the right fog light comes on; turn left and the left fog light comes on. The light dims and goes out when the steering wheel is straightened out again.
When you move the selector lever to Reverse (R), the static cornering lights on both sides of the vehicle may come on so that you can see the area around the vehicle better when backing up.
The static cornering lights work only when the headlights are on. If you are using automatic headlights
(headlight switch in the !54/ position ⇒ fig. 80), they work only when the headlights have been auto-matically switched on. The static cornering lights do not come on when the headlight switch is in the /
position or when the fog lights themselves have been switched on ⇒  Switching lights on and off.
Automatic headlights (!54/)
Your vehicle may be equipped with automatic headlights (!54/), which are a convenience feature only and cannot always recognize all lighting and driving situations.
If the light switch is in the !54/ position, both vehicle lighting and instrument and switch lighting are
automatically switched on and off in the following situations ⇒ :

Automatic activation: Automatic deactivation:
If the low-light sensor registers darkness, for example when driving through a tunnel. If sufficient brightness is registered.
If the rain sensor recognizes rain and switches the windshield wipers on. If the windshield wipers have not moved for several minutes.