This chapter contains information on the following subjects:
→ Warning lamps and indicator lamps
→ Description of the central locking system→ Locking and unlocking the vehicle from outside
→ Locking and unlocking the vehicle from inside→ Deadlock 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 and the engine may not start.
Additional information and warnings:

WARNING
Warning lamps and indicator lampsVolkswagen Touran Service Manual. Special Connector Systems
Note
If necessary, housing securing mechanisms (secondary locks)
must be released or removed using specified tool before
releasing the contacts. Refer to
→ Chapter "Secondary Lock".
...
Volkswagen Touran Service Manual. Pressure and Boiling Point
The boiling point given in tables for a liquid is always
referenced to an atmospheric pressure of 1 bar (14.5 psi). If
the pressure acting on a fluid changes, its boiling point also
changes.
For example, water boils at a lower temperatur ...