key battery VOLKSWAGEN JETTA 2012 Owners Manual

To find the nearest qualified independent repair facility, locksmith, or Volkswagen dealer which can cut and code replacement vehicle keys, call the VW Customer Care Hotline at 1-800-822-8987 or visit http://www.vw.com and search for “replacement keys.”
Canadian customers can contact an authorized Volkswagen dealer or Volkswagen Service Facility or call the Volkswagen Canada Customer CARE Center at 1-800-822-8987.
NOTICE
The remote control vehicle keys contain electrical components. Protect them from damage, moisture and rough handling.
Do not press the buttons on the remote control vehicle key unless you actually want to use the function in question. Since terrain and conditions vary, pressing a button on the remote control vehicle key when it is not necessary may unlock the vehicle or set off the panic alarm, even if you think you are out of range.
Remote control vehicle key functions can be temporarily disrupted by interference from transmit-ters near the vehicle that use the same frequency range (such as radio equipment or mobile phones).
Things between the remote control vehicle key and vehicle, bad weather, as well as a weak battery can reduce the operating range.
If the remote control vehicle key buttons, Unlocking or locking the vehicle from the outside or the power locking buttons, Unlocking or locking the vehicle from the inside are pushed repeatedly in quick succession, the power locking system is switched off for a brief period to help keep it from being overloaded. The vehicle is then unlocked for about 30 seconds. Unless a door or the luggage com-partment lid is opened in this span of time, the vehicle is automatically locked afterwards.
Indicator light in the remote control vehicle key

Fig. 16 Indicator light in the remote control vehicle key.

A Declaration of Compliance with United States FCC and Industry Canada regulations is found in the Consumer information section of this Manual, Consumer information.
Replacing the remote control vehicle key battery

Fig. 17 Remote control vehicle key: Open battery compartment cover.

Fig. 18 Remote control vehicle key: Remove old battery.

NOTICE
x Changing the battery improperly can damage the remote control vehicle key.
x Using the wrong battery can damage the remote control vehicle key. Replace a dead battery with a new one that has the same voltage, size, and specifications.
x Make sure the plus and minus poles of the battery are correctly positioned.
Dispose of old batteries in an environmentally responsible manner and keep them out of the reach of children.
Batteries of the type used in your remote control vehicle key may contain Perchlorate Material. Special handling may apply – see http://www.dtsc.ca.gov/hazardouswaste/perchlorate. Obey all legal requirements regarding handling and disposal of these batteries. Authorized Volkswagen dealers and authorized Volkswagen Service Facilities are familiar with the requirements, and we recommend that you have them perform this service for you.
Synchronizing the remote control vehicle key

Function Using the buttons on the remote control vehicle key
⇒ fig. 19
Unlock the vehicle. Press the 0button.
Lock the vehicle. Press the 1button.
Unlock the luggage compartment lid. Press the q button
Note: Depending on the central remote control settings, it may be necessary to press the 0 button on the remote control vehicle key twice to unlock all doors and the luggage compartment lid, Volkswagen Information System. If you would like to have these settings changed, please see your authorized Volkswagen dealer or authorized Volkswagen Service Facility.
The vehicle key unlocks or locks the vehicle only when the battery in the remote control vehicle key has enough power, and the remote control vehicle key is within a few yards/meters of the vehicle.
x All turn signals flash once and the horn beeps once to confirm that the vehicle has been locked. The horn beep can be disabled by deactivating the “ATA confirmation” feature. Please see your au-thorized Volkswagen dealer or authorized Volkswagen Service Facility to have this setting adjusted.
x All turn signals flash twice to confirm that the vehicle has been unlocked.
If the turn signals do not flash to confirm locking, one or more doors or the luggage compartment lid is not locked.
If the driver door is open, the vehicle cannot be locked with the remote control vehicle key.
If the vehicle was unlocked with the remote control vehicle key and the door or the luggage compart-ment lid has not been opened within a few seconds, the vehicle is automatically locked again. This feature helps prevent you from leaving the vehicle unlocked unintentionally.
Unlocking or locking the vehicle from the inside

Fig. 20 In the driver and front passenger doors: Power locking button.

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

WARNING
Improper use of vehicle keys can result in serious personal injury.
x Always take the key with you when you leave the vehicle. The engine can be started and vehicle systems such as the power windows can be operated, leading to serious personal injury.
x Never leave children, disabled persons, or anyone who cannot help themselves in the vehicle. The doors can be locked with the remote control vehicle key. This could result in people being trapped in the vehicle in an emergency. For example, depending on the time of year, people trapped in the vehicle can be exposed to very high or very low temperatures.
x Heat buildup in the passenger and luggage compartment of a parked vehicle can result in temperatures in the vehicle that are much higher than the outside temperatures, particularly in summer. Temperatures can quickly reach levels that can cause unconsciousness and death, particularly to small children.
x Never remove the key from the ignition switch while the vehicle is moving or rolling to a stop. The steering wheel will lock and you will not be able to steer or control the vehicle.
Leaving the key in the ignition for a long time when the engine is not running will drain the vehicle battery.
Leaving the selector lever for a long period of time in any position other than Park (P) when the ignition is switched off can drain the vehicle battery.
On automatic transmission vehicles, the vehicle key can be removed from the ignition switch only when the transmission is in Park (P). You may have to press the release button on the transmission selector lever to put the lever into Park (P).
Starter button

Fig. 112 In the center console: Starter button for the Keyless Access locking and starting system.

WARNING
High voltage systems in the engine compartment can cause electrical shocks or even electrocution, severe burns, other serious injuries, and even death!
x Never short-circuit the electrical system. Be especially careful when using jumper cables. The vehicle's battery could explode!
x To reduce the risk of electrical shock and personal injury while the engine is running or being started:
– Never touch ignition cables. Never touch other components of the high voltage electronic ignition system.
– Never touch the wiring of the HID – High Intensity Discharge (Xenon) headlights.
x Read and heed the important information and warnings on cleaning the engine compartment, Cleaning the engine compartment.
WARNING
Moving parts in the engine compartment can cause serious personal injury on contact.
x Never reach into the area around or touch the radiator fan. Contact with the blades can cause serious personal injury. Always remember that the radiator fan is temperature-controlled and can come on suddenly even when the engine has been switched off for a while and the key has been removed from the ignition.
x If you have to perform a check or repair when the engine is running, there are more risks from the rotating parts, such as the drive belts, alternator, radiator fan, etc., and from the high-voltage ignition system. Always use extreme care.
– Always make sure that jewelry, loose clothing and long hair do not get caught in rotating engine parts. Before starting any work remove your jewelry, take off your necktie, tie back and cover your hair, and do not wear clothing that can hang down and get caught in moving engine parts.
– Always use extreme caution if the accelerator pedal has to be depressed to perform a check. The vehicle will start to move even if the parking brake is on.
x Never leave any objects in the engine compartment, for example cleaning rags and tools. Objects left behind can cause malfunctions, engine damage, and even fires.
WARNING
Operating fluids and some materials in the engine compartment can catch fire easily, causing burns and other serious personal injuries!
x Never smoke near the engine compartment.
x Never work next to open flames or sparks.
x Never pour or spill operating fluids or other flammable liquids on the engine. These fluids can ignite on hot engine parts and cause injuries.
x If work on the fuel system or the electrical system is necessary:
– Always disconnect the 12 Volt vehicle battery. Make sure the vehicle is unlocked when you disconnect the battery, or the alarm will go off. Never touch the electrical wiring of the ignition system.
– Never work near heaters, water heaters, or other open flames.
x Always have a functional, approved fire extinguisher nearby.

Vehicles with Keyless Access
If the ignition will not start after reconnecting the vehicle battery, lock the vehicle from the outside and unlock it again, Unlocking or locking the vehicle with Keyless Access. Then try to start the ignition again. If the ignition cannot be switched on, contact an authorized Volkswagen dealer, an authorized Volkswagen Service Facility, or another qualified workshop for assistance.
Automatic electrical load deactivation
If the vehicle battery drain is high, the intelligent onboard electrical system management automatically takes steps to help prevent battery drain.
x The idle speed is increased so that the alternator provides more power.
x The power to devices that consume a lot of electricity is cut back or switched off completely.
x When the engine is started, the power supply to the 12 Volt sockets is temporarily interrupted.
The onboard electrical system management cannot always keep the battery from being drained. For example, the battery will drain if the engine is not running, but the ignition is switched on or the parking lights are left on for a long time when parked.
What drains the vehicle battery?
x Long periods when the engine is not running, especially when the ignition is on.
x Using electrical systems or devices when the engine is switched off.
x Leaving the vehicle unlocked for several days when not in use.
x The selector lever is left for a long period of time in any position other than P when the ignition is switched off, Automatic transmission: Selector lever.
WARNING
Failure to use the proper battery with proper mounting and connections may cause short circuits, fires, and serious personal injuries.
x Always use only maintenance-free or cycle-free, leak-proof batteries with the same specifications and dimensions as the original equipment battery. Specifications are listed on the battery housing.
WARNING
When the vehicle battery is charged, it produces highly explosive hydrogen gas.
x Charge vehicle batteries only in well-ventilated areas.
x Never charge a frozen or thawed battery. A dead battery can freeze at temperatures around +32 °F (0 °C).
x You must replace the vehicle battery if it was frozen.
x Incorrectly connected cables can cause a short-circuit. First connect the positive cable (+) and then the negative cable (-).
NOTICE
x Never disconnect the vehicle battery or connect 2 vehicle batteries to each other when the ignition is switched on or the engine is running. Doing this may damage the electrical system or electronic components.
x Never use a vehicle battery that does not meet the specifications for the vehicle battery for your vehicle. Using the wrong battery can damage the electrical system or electronic components and cause electrical malfunctions.

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Frequently asked questions (FAQ)
If you suspect a malfunction or vehicle damage, read and follow the following advice before contacting an authorized Volkswagen dealer or an authorized Volkswagen Service Facility. You may also find helpful information under “Special considerations” or “Checklist” in the index.

Description Possible causes, among others Possible remedy
Engine does not start.
Vehicle battery dead. – Perform jump-start – Charge vehicle battery
The wrong vehicle key is used. Use a valid vehicle key
Fuel level too low. Refuel
Vehicle cannot be locked or unlocked using vehicle key.
– Battery in the remote control vehicle key is dead. – Too far away from the vehicle (out of range). – Buttons have been pressed too many times.
– Replace the battery in the remote control vehicle key – Move closer to vehicle. – Synchronize vehicle key – Lock or unlock vehicle manually
Unusual noises. Cold engine, braking assist systems, electronic steering column lock. Check the “Noises” entry in the index.
Odd driving behavior.
Assistance systems activated. Check the “Assistance systems” entry in the index.
DSG® Direct Shift Gearbox too hot. Stop vehicle as soon as you can safely do so.
Front seats cannot be adjusted with power controls.
Vehicle battery dead. Charge vehicle battery
Fuse blown. Check fuse and replace if necessary
Features do not work as described in this manual.
Settings were adjusted in the Volkswagen Information System.
Check and reset to factory settings if necessary
Headlights do not light up the road as they should.
– Headlights incorrectly adjusted. – Light bulbs burned out. – Low beams not switched on.
– Have the headlight range adjusted by an authorized Volkswagen dealer or an authorized Volkswagen Service Facility. – Change light bulbs – Switch on low beams
Electrical consumers do not work.
Vehicle battery charge too low. Charge vehicle battery
Remaining fuel level too low. Refuel
Fuse blown. Check fuse and replace if necessary .
Fuel consumption higher than indicated.
– Short hauls. – “Jumpy” accelerator pedal.
– Avoid short distance driving. – Drive defensively. – Accelerate smoothly.
Electrical loads switched on. Switch off unnecessary loads.
Engine control malfunction. Have the malfunction corrected
Tire pressure too low. Adjust tire pressure