Volkswagen ID.4: Functions of the proactive passenger protection system

Basic functions

In the Volkswagen ID.4, the proactive passenger protection system can initiate several protective actions in critical driving situations. These actions may occur individually or simultaneously, for example during emergency braking, loss of vehicle control, or minor collisions:

• Reversible tightening of the safety belts for the driver and front passenger.
• Automatic closing of side windows, leaving only a small gap (depending on equipment).
• Activation of the hazard warning lights.

Depending on the severity of the situation, the safety belts in the Volkswagen ID.4 may tighten either individually or simultaneously to optimize occupant positioning.

Additional functions for vehicles with Autonomous Emergency Braking (Front Assist)

In Volkswagen ID.4 models equipped with Front Assist, the system continuously evaluates the risk of a collision with the vehicle ahead. If a potential rear-end collision is detected or emergency braking is initiated, the proactive passenger protection system may be triggered to prepare occupants.

Additional functions for vehicles with Emergency Assist

In Volkswagen ID.4 vehicles equipped with Emergency Assist, the proactive passenger protection system can activate if driver inactivity is detected, helping to enhance safety in critical situations.

Depending on the activation level, the following measures may be applied:

• Temporary or sustained reversible tightening of the driver's safety belt.
• Automatic closing of the side windows, leaving only a minimal opening (depending on equipment).

Setting in the Driving Mode Selection

For Volkswagen ID.4 models equipped with Driving Mode Selection, the behavior of the proactive passenger protection system is adapted to the selected driving mode, ensuring that safety responses are aligned with the vehicle’s current performance characteristics.

Safety belt pretensioner servicing and disposalVolkswagen ID.4 (E21) 2021-2026 Service Manual