2012 VOLKSWAGEN JETTA sensor

Unlocking or locking the vehicle with Keyless Access

Fig. 22 Ranges of the Keyless Access locking and starting system. Outside the vehicle: Unlocking range. Inside the vehicle: Starting range.

Fig. 23 Keyless Access locking and starting system: Sensor for unlocking A on the inside of the front door handles. Sensor for locking B on the outside of the front door handles.

All turn signals flash twice to confirm that the vehicle has been unlocked and once to confirm that it has been locked.
If the vehicle was unlocked and within the next few seconds neither a door nor the luggage compart-ment lid has been opened, the vehicle is automatically locked again.
Unlocking and opening doors (Keyless Entry)
x Grasp the door handle of the driver or front passenger door so that you touch the unlocking sensor surface (A).
x Open the door.
Closing and locking doors (Keyless Exit)
x Switch the ignition off.
x Close the driver door.
x Touch the sensor surface in the door handle on the driver or front passenger door (B). The vehicle is locked. The door being locked must be closed.
Unlocking and locking the luggage compartment lid
If the vehicle is locked and a valid remote control vehicle key is within range ⇒ fig. 22 of the luggage compartment lid, it unlocks automatically when opened.
Open and close the luggage compartment lid as you would a standard luggage compartment lid, Luggage compartment lid.
The luggage compartment lid locks automatically when it is closed except in the following situations:
x The vehicle is completely unlocked.
x When an authorized remote control vehicle key is inside the vehicle.
Locking with a second vehicle key
If a remote control vehicle key is inside the passenger compartment, the vehicle can be locked from the outside only if a second valid remote control vehicle key is within range.
When the vehicle is locked from the outside, the keyless go (starting) function of any keys left in the passenger compartment will be deactivated, Starting and stopping the engine. A key that was inside the vehicle when it was locked from the outside is reactivated by pressing the 0button on the deac-
tivated key ⇒ fig. 19.
Automatic deactivation of sensors
If the vehicle has not been unlocked or locked for a longer period of time, the proximity sensors in the passenger door are automatically deactivated.
If a sensor on the door handle of a locked vehicle is activated too often, for instance by a bush or hedge that rubs against the vehicle, the sensors in the door handle on that side of the vehicle are switched off for a short time.
The door handle sensors become active again if one of the following events occurs:
x A short time has passed.
x OR: The vehicle is unlocked using the 0button in the remote control vehicle key.
x OR: The luggage compartment lid is opened.
x OR: The vehicle is mechanically unlocked with the vehicle key.
Convenience features
Your vehicle may be equipped with the convenience closing feature.
To use the convenience closing feature to close all power windows and the sunroof, hold your finger on the lock sensor surface on the outside of the door handle for a few seconds until the windows and sunroof close.

Remove your finger from the lock sensor surface ⇒ fig. 23 (B) to stop the function. If you touch the unlock sensor surface (A) on the inside of the door handle immediately after releasing the lock sensor surface (B) (arrow), all of the windows will open (safety function).
Pinch protection is active during convenience closing of the windows and the power sunroof.
NOTICE
The door handle sensor surfaces can be activated by a strong stream of water or steam if a valid vehicle key is within range of the vehicle.
x All windows may open if you turn the spray of water or steam away from and then back onto the door handle sensor surface in quick succession. If at least one power window is opened and the sensor is continuously activated, convenience closing is started.
The door may not open if the outside and inside door handles are used at the same time.
If the vehicle battery or the battery in the remote control vehicle key is weak or dead, it might not be possible to unlock and lock the vehicle using Keyless Access. The vehicle can still be manually locked or unlocked with the key bit, Manually unlocking and locking the driver door.
The driver message No Key appears in the instrument cluster display if there is no remote con-trol vehicle key inside the vehicle or if the system does not recognize the remote control vehicle key. The key may not be recognized, for example, if it is covered by something that interferes with the signal (such as a briefcase), or if the remote control vehicle key battery is weak. Electronic devices such as mobile phones can also interfere with the signal.
Dirt on the door handles that contains a lot of salt (especially in winter) can affect the way the door handle sensors work. Cleaning the door handles can help with this problem, Exterior care and cleaning.
If the automatic transmission is not in Park (P) position, the electronic steering column lock will not lock and the vehicle will not lock via sensors in the front door handles or the remote control vehicle key.
Anti-theft alarm system

Convenience closing
If your vehicle is equipped with the convenience closing feature, you can close the windows and the power sunroof as follows:
x From inside the vehicle: When the driver door is open, pull up and hold the switch for the driver window until all windows and the sunroof are closed.
x Manual locking from outside the vehicle: Lock the vehicle with the vehicle key bit in the driver door and keep the key turned in the locking position to close all windows and the power sunroof, Manually unlocking and locking the driver door.
x Vehicles with Keyless Access: Hold your finger on the lock sensor surface on the outside of the door handle for a few seconds until the windows and power sunroof close, Unlocking or locking the vehicle with Keyless Access.
WARNING
Improper use of power windows can result in serious personal injury.
x Never let anyone get in the way of a power window when closing it.
x When locking the vehicle from the outside, make sure that no one, especially children, remains in the vehicle. The windows will not open in case of an emergency.
x Always take the key with you when you leave the vehicle. You can still use the power win-dows for several minutes after the ignition is switched off as long as the driver or front pas-senger door has not been opened.
x Always use the safety switch when children are in the back seat to disable the rear power windows and keep them from being opened and closed.
If the power windows malfunction, the one-touch feature, as well as pinch protection may not work properly. See an authorized Volkswagen dealer or authorized Volkswagen Service Facility right away.
If convenience closing of the power windows from the outside requires removing the cover cap of the lock cylinder on the driver door, the cover cap must be reinstalled after the vehicle is locked, Manually unlocking and locking the driver door.
Power window pinch protection

To help make it more difficult to steal your vehicle, you should always make sure the steering column is locked before leaving the vehicle.
Electronic steering column lock
Vehicles with Keyless Access: The steering column is locked if the driver door is opened with the ignition switched off. The vehicle must be standing still and the transmission must be in Park (P) on an automatic transmission vehicle.
If the driver door is opened before the ignition is switched off, the electronic steering column lock is activated only after the vehicle has been locked with the vehicle key or via the sensor in the door handle.
Mechanical steering column lock
Vehicles without Keyless Access: The steering column is locked if the vehicle is stationary and the vehicle key is removed from the ignition switch.

Engaging the steering column lock Disengaging the steering column lock
Parking the vehicle . Turn the steering wheel slightly to take pressure off the steering column lock.
Remove the vehicle key. Insert the vehicle key into the ignition switch.
Turn the steering wheel slightly until you hear the steering column lock engage.
Hold the steering wheel in this position and turn the ignition switch.

Power steering
Power steering automatically adjusts to driving speed, steering torque, and the steering angle of the wheels. Power steering works only when the engine is running.
If power steering is reduced or lost completely, it will be much harder to steer and control the vehicle.
Counter-steering assistance
Counter-steering assistance is part of Electronic Stability Control (ESC). This feature makes it easier for the driver to control the vehicle in difficult situations. For example, if you have to brake hard on a surface that provides uneven traction, the vehicle could pull to the right or left. ESC detects this
situation and helps the driver counter-steer with additional steering power ⇒ .
WARNING
The counter-steering assistance in ESC can do no more than help the driver steer in difficult situations. The driver must still control the vehicle. The vehicle does not steer by itself with this feature!
NOTICE
If the ignition is off, the steering column lock will engage and the vehicle cannot be steered. For this reason, you must leave the ignition on when going through an automatic car wash, for example, so that the wheels will still steer.

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Changing the vehicle's suspension system can change the way that the airbag system works in a crash. For example, using tire-rim combinations not approved by Volkswagen, lowering the vehicle, changing the stiffness of the suspension, including the springs, suspension struts, shock absorbers etc. can change the forces that are measured by the airbag sensors and sent to the electronic control unit. Some suspension changes can, for example, increase the force levels measured by the airbag sensors and sent to the electronic control unit and make the airbag system deploy in crashes in which it would not deploy if the changes had not been made. Other kinds of changes may reduce the force levels measured by the sensors and prevent the airbag from deploying when it should.
Never install leather upholstery on a vehicle that originally had cloth upholstery. Never install cloth upholstery on a vehicle that originally had leather upholstery. The capacitive passenger detection system for the Advanced Airbag system will not work properly if different upholstery is installed on the passenger seat than the upholstery originally installed on the vehicle when it was originally manufactured.
WARNING
Changing the vehicle's suspension including use of unapproved tire-rim combinations can change airbag performance and increase the risk of serious personal injury in a crash.
x Never install suspension components that do not have the same performance characteristics as the components originally installed on your vehicle.
x Never use tire-rim combinations that have not been approved by Volkswagen.
WARNING
Leaving the optional safety belt extender attached to the safety belt buckle on the front passenger seat when the safety belt is not being used will prevent the Advanced Airbag System from working properly and can increase the risk of serious personal injury in a collision.
x Leaving the extender attached to the safety belt buckle when the front seat is occupied and the safety belt is not being used will signal to the airbag control unit that the front passenger seat is occupied and that the safety belt is being used. The electronic control unit for the airbag system will then receive incorrect information that will
– cause the safety belt pretensioner to deploy unnecessarily in collisions and
– cause the front passenger airbag to deploy later in collisions in which the front airbag would otherwise be triggered earlier to help protect an unrestrained front seat passenger.
x Always remove the safety belt extender when it is not needed and stow it safely.
x Never use the safety belt extender to secure a child restraint.
WARNING
Items stored between the safety belt buckle and the center console can cause safety belt buckle to send the wrong information to the airbag control unit and prevent the Advanced Airbag System from working properly.
x Always make sure that nothing can interfere with the safety belt buckles and that they are not obstructed.