change key battery VOLKSWAGEN POLO 2015 Owner´s Manual

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Indicator lamp in the vehicle key
Fig. 23 Indicator lamp in the vehicle key
First read and observe the introductory information and safety warnings →Introduction 
If a button on the vehicle key is pressed briefly, the indicator lamp  → Fig. 23  (arrow) flashes once. The lamp will flash several times if the button
is pressed and held, e.g. convenience opening.
If the indicator lamp in the key does not light up when a button is pressed, the battery in the key should be replaced  → Replacing the battery   .
Replacing the battery
Fig. 24 Vehicle key: opening the battery compartment
Fig. 25 Vehicle key: removing the battery
First read and observe the introductory information and safety warnings →Introduction 
Volkswagen recommends having the battery changed at a Volkswagen dealership or by a qualified workshop.
The battery is located on the rear side of the vehicle key underneath a cover.
Replacing the battery

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Replacing the battery
Fold out the key bit of the vehicle key  → Opening and closing the key bit  .
Pull up the cover on the rear side of the vehicle key  → Fig. 24  in the direction of the arrow  → .
Using a suitable thin object, lever the battery out of the battery compartment  → Fig. 25 .
Insert the new battery as shown  → Fig. 25  and push it into the battery compartment against the direction of the arrow  → .
Fit the cover as shown  → Fig. 24  and push it onto the vehicle key housing against the direction shown by the arrow until it engages.
 Dispose of discharged batteries in accordance with regulations governing the protection of the environment.
 The battery in the vehicle key may contain perchlorate. Please comply with any legal requirements and regulations when handling and
disposing of these batteries.
Synchronising the vehicle key
First read and observe the introductory information and safety warnings →Introduction 
It may no longer be possible to lock or unlock the vehicle with the remote control if the   button is pressed repeatedly outside of the
effective range of the vehicle key. If this is the case, the vehicle key should be re-synchronised as follows:
Fold out the key bit of the vehicle key  → Opening and closing the key bit  .
Press the  button on the vehicle key. Remain standing close to the vehicle.
Unlock the vehicle with the key bit within one minute. The synchronisation process is complete.
Fold in the key bit of the vehicle key.
 Introduction
This chapter contains information on the following subjects:
 → Indicator lamp  
 → Description of the central locking system  
 → Locking and unlocking the vehicle from the outside  
 → Locking and unlocking the vehicle from the inside  
 → SAFELOCK mechanism  
 → Anti-theft alarm  
 → Interior monitoring system and anti-tow alarm  
The central locking system will only work correctly when all doors and the tailgate are properly closed. The vehicle cannot be locked with the key
if the driver door is open.
If the vehicle is unlocked and not used for a long time (e.g. in your own garage) the vehicle battery could discharge or the engine may not start.
The vehicle key can be damaged if the battery is not changed properly.
Unsuitable batteries can damage the vehicle key. Replace discharged batteries only with new batteries of the same voltage rating, size and
specification.
Make sure that the battery is fitted the right way round.
NOTICE
Central locking system