Document ID: chunk:federal_register_of_legislation:F2023L01526:body:0:p20
Version: federal_register_of_legislation:F2023L01526
Segment Type: other
Provision Reference: 
Character Range: 56619–59578

Places for containing open type traction batteries that may produce hydrogen gas shall be provided with a ventilation fan or a ventilation duct to prevent the accumulation of hydrogen gas.
         5.2.3. Warning in the event of failure in REESS
         The vehicle shall provide a warning to the driver when the vehicle is in active driving possible mode in the event specified in paragraphs 6.13. to 6.15.
         In case of optical warning, the tell-tale shall, when illuminated, be sufficiently bright to be visible to the driver under both daylight and night-time driving conditions, when the driver has adapted to the ambient roadway light conditions.
         This tell-tale shall be activated as a check of lamp function either when the propulsion system is turned to the "On" position, or when the propulsion system is in a position between "On" and "Start" that is designated by the manufacturer as a check position. This requirement does not apply to the tell-tale or text shown in a common space.
         5.2.4. Warning in the event of low energy content of REESS.
         For pure electric vehicles (vehicles equipped with a powertrain containing exclusively electric machines as propulsion energy converters and exclusively rechargeable electric energy storage systems as propulsion energy storage systems), a warning to the driver in the event of low REESS state of charge shall be provided. Based on engineering judgment, the manufacturer shall determine the necessary level of REESS energy remaining, when the driver warning is first provided.
         In case of optical warning, the tell-tale shall, when illuminated, be sufficiently bright to be visible to the driver under both daylight and night-time driving conditions, when the driver has adapted to the ambient roadway light conditions.
         5.3. Preventing accidental or unintended vehicle movement
         5.3.1. At least a momentary indication shall be given to the driver each time when the vehicle is first placed in "active driving possible mode'' after manual activation of the propulsion system.
         However, this provision is optional under conditions where an internal combustion engine provides directly or indirectly the vehicle´s propulsion power upon start up.
         5.3.2. When leaving the vehicle, the driver shall be informed by a signal (e.g. optical or audible signal) if the vehicle is still in the active driving possible mode. Moreover, in case of vehicles of category M2 and M3 with a capacity of more than 22 passengers in addition to the driver, this signal shall already be given when the drivers leave their seat.
         However, this provision is optional under conditions where an internal combustion engine provides, directly or indirectly, the vehicle´s propulsion power while leaving the vehicle or driver seat.
         5.3.3. If the REESS can be externally charged, vehicle movement by its own propulsion system shall be impossible