my Volkswagen Tiguan First Generation (2007-2018) key fob not working what can I do

Solution

1. Preparation

• Gather tools: small flathead screwdriver, new key fob battery (typically CR2032), and an OBD-II scanner.
• Ensure the vehicle is in a safe location and the ignition is off.

2. Replace Key Fob Battery

• Use the small flathead screwdriver to gently pry open the key fob casing.
• Remove the old battery, noting the orientation for the new battery.
• Insert the new battery in the same orientation as the old one.
• Snap the key fob casing back together.

3. Reprogram Key Fob (if necessary)

• Sit in the driver’s seat and close all doors.
• Insert the key into the ignition and turn to the "On" position without starting the engine, then back to "Off."
• Remove the key and press the lock button on the fob for at least 5 seconds.
• Turn the ignition back to "On" position and check if the fob functions correctly.

4. Check Vehicle Battery

• Open the hood and inspect the vehicle's battery for any corrosion or loose connections.
• Use a multimeter to check the battery voltage; it should read around 12.6 volts when the vehicle is off.
• If the voltage is low, charge or replace the vehicle battery.