Nissan Altima (L34) 2019-2024 Owners Manual: BSW system limitations

WARNING

Listed below are the system limitations for the BSW system. Failure to operate the vehicle in accordance with these system limitations could result in serious injury or death.

• The BSW system cannot detect all vehicles under all conditions.
• The radar sensors may not be able to detect and activate BSW when certain objects are present such as:
  • Pedestrian, bicycles, animals.
  • Vehicles such as motorcycles, low height vehicles, or high ground clearance vehicles.
  • Oncoming vehicles.
  • Vehicles remaining in the detection zone when you accelerate from a stop.
  • A vehicle merging into an adjacent lane at a speed approximately the same as your vehicle.
  • A vehicle approaching rapidly from behind.
  • A vehicle which your vehicle overtakes rapidly.
  • A vehicle that passes through the detection zone quickly.
  • When overtaking several vehicles in a row, the vehicles after the first vehicle may not be detected if they are traveling close together.
• The radar sensors’ detection zone is designed based on a standard lane width. When driving in a wider lane, the radar sensors may not detect vehicles in an adjacent lane. When driving in a narrow lane, the radar sensors may detect vehicles driving two lanes away.
• The radar sensors are designed to ignore most stationary objects; however, objects such as guardrails, walls, foliage and parked vehicles may occasionally be detected. This is a normal operation condition.
• The following conditions may reduce the ability of the radar to detect other vehicles:
  • Severe weather
  • Road spray
  • Ice/frost/snow/dirt build-up on the vehicle
• Do not attach stickers (including transparent material), install accessories or apply additional paint near the radar sensors. These conditions may reduce the ability of the radar to detect other vehicles.
• Excessive noise (for example, audio system volume, open vehicle window) will interfere with the chime sound, and it may not be heard.

BSW driving situations

Illustration 1 - Approaching from behind

Indicator on

Indicator off

Indicator flashing

Another vehicle approaching from behind

Illustration 1: The side BSW/RCTA indicator light illuminates if a vehicle enters the detection zone from behind in an adjacent lane.

NOTE:

• The radar sensors may not detect vehicles which are approaching rapidly from behind.

Illustration 2 - Approaching from behind

Illustration 2: If the driver activates the turn signal when another vehicle is in the detection zone, then the system chimes (twice), the side BSW/RCTA indicator light and the BSW indicator flash.

NOTE:

• The radar sensors may not detect vehicles which are approaching rapidly from behind.
• If the driver activates the turn signal before a vehicle enters the detection zone, the side BSW/RCTA indicator light and the BSW indicator will flash but no chime will sound when the other vehicle is detected.

Illustration 3 - Overtaking another vehicle

Overtaking another vehicle

Illustration 3: The side BSW/RCTA indicator light illuminates if you overtake a vehicle and that vehicle stays in the detection zone for approximately 2 seconds.

Illustration 4 - Overtaking another vehicle

Illustration 4: If the driver activates the turn signal while another vehicle is in the detection zone, then the system chimes (twice), the side BSW/RCTA indicator light and the BSW indicator flash.

NOTE:

• When overtaking several vehicles in a row, the vehicles after the first vehicle may not be detected if they are traveling close together.
• The radar sensors may not detect slower moving vehicles if they are passed quickly.
• If the driver activates the turn signal before a vehicle enters the detection zone, the side BSW/RCTA indicator light and the BSW indicator will flash but no chime will sound when the other vehicle is detected.

Illustration 5 - Entering from the side

Entering from the side

Illustration 5: The side BSW/RCTA indicator light illuminates if a vehicle enters the detection zone from either side.

Illustration 6 - Entering from the side

Illustration 6: If the driver activates the turn signal while another vehicle is in the detection zone, then the system chimes (twice), the side BSW/RCTA indicator light and the BSW indicator flash.

NOTE:

• If the driver activates the turn signal before a vehicle enters the detection zone, the side BSW/RCTA indicator light and the BSW indicator will flash but no chime will sound when the other vehicle is detected.
• The radar sensors may not detect a vehicle which is traveling at about the same speed as your vehicle when it enters the detection zone.