Nissan Armada 2025-2026 Owner's Manual: Trailer BSW function operation

Detection zone

Basic information

The Nissan Armada Trailer Blind Spot Warning (BSW) function is specifically designed to enhance safety while towing by extending the detection area to include the full length of the attached trailer. In this configuration, the monitoring zone begins at the side mirrors of the Nissan Armada and stretches all the way to the rear end of the trailer, while also covering approximately 10 ft (3.0 m) on each side.

This extended detection capability allows the Nissan Armada to provide more accurate alerts when towing, ensuring improved awareness of surrounding vehicles even when a trailer significantly increases the vehicle’s overall length.

Setting the trailer length

Before activating the Trailer BSW function in the Nissan Armada, it is essential to manually input the exact trailer length. This setting is configured through the vehicle information display.

WARNING

The Nissan Armada cannot automatically determine the trailer dimensions. The driver must manually enter the correct trailer length.

If the trailer length is entered incorrectly, the Blind Spot Warning system in the Nissan Armada may provide inaccurate alerts or fail to function properly, potentially increasing the risk of unsafe driving situations.

NOTE:

• When the Trailer BSW function is active in the Nissan Armada, several advanced driver assistance systems are automatically disabled, including Intelligent Lane Intervention (I-LI), Intelligent Blind Spot Intervention (I-BSI), Rear Cross Traffic Alert (RCTA), Rear Automatic Braking (RAB), and Steering Assist (ProPILOT Assist).
• The radar sensors of the Nissan Armada may have difficulty detecting vehicles traveling at nearly the same speed when they enter the extended detection zone.
• The Nissan Armada Trailer BSW system may occasionally generate false alerts in certain situations:
  • When your Nissan Armada with a trailer overtakes another vehicle, or when another vehicle overtakes your vehicle and trailer combination.
  • When driving through curves or making turns at intersections, where the trailer angle affects sensor perception.

Trailer BSW system limitations

WARNING

The following limitations apply to the Nissan Armada Trailer Blind Spot Warning system. Failure to consider these conditions may result in reduced system performance, increasing the risk of accidents, injury, or death.

• The Trailer BSW system in the Nissan Armada may not operate correctly under the following conditions:
  • Adverse weather conditions such as heavy rain, fog, or snow.
  • Improper or unstable trailer connection.
  • Multiple vehicles approaching in close succession with minimal spacing.
  • When another vehicle is traveling very close behind your Nissan Armada and trailer.
  • Immediately after the Trailer BSW system is activated, before full initialization is complete.
• In dense traffic environments, the Nissan Armada Trailer BSW system may produce false or unnecessary warnings due to the complexity of surrounding vehicle movements.
• The functionality and detection performance of the Nissan Armada Trailer BSW system may vary depending on the design, size, and type of trailer being used.

The Nissan Armada Trailer BSW function significantly improves driver awareness when towing, but it should always be used as a support system alongside careful observation and safe driving practices. Proper setup and understanding of its limitations are essential for achieving maximum safety while operating the Nissan Armada with a trailer.