Keys and doors -> Battery replacement for Your Toyota Avensis 4 Door Second Generation (2004-2009)

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– Battery replacement  
Use a CR2016 lithium battery or equivalent and a special  
screwdriver for replacement.  
WARNING  
Pay special attention to prevent small  
children from swallowing the removed  
battery or parts.  
NOTICE  
u Be careful not to lose any parts when  
changing the batteries.  
1. Remove the screw and open the cover.  
u For replacement, use only the same or  
equivalent type recommended by an  
authorized Toyota dealer or service  
center, or another properly qualified  
and equipped professional.  
u Dispose of batteries in accordance  
with applicable regulations.  
To replace the battery, proceed as follows:  
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2. Remove the module from the housing.  
3. Remove the battery case cover.  
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5. Insert the new battery with the positive side facing  
4. Move the battery so that it is free and can be removed.  
up, making sure the battery is firmly attached by the  
clips.  
NOTICE  
NOTICE  
Do not modify the battery case. It could cause a  
problem.  
u Make sure the positive and negative sides of the  
battery are oriented correctly.  
u Do not replace the battery with wet hands.  
Water can cause unexpected corrosion.  
u Do not touch or move any part inside the  
transmitter to avoid malfunction.  
u Take care not to bend the electrode when  
inserting the battery and to prevent grease or  
dust from entering the case.  
6. Replace the battery case cover and insert  
module into the key body.  
7. Close the cover and secure it with a screw.  
NOTICE  
Make sure the cover is securely closed.  
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After replacing the battery, test whether the key works  
properly. When you press any switch on the wireless  
dongle, make sure the indicator on the dongle lights up.  
If the key still does not work properly, contact any  
authorized Toyota dealer or service center, or another  
properly qualified and equipped professional.