2021 Nissan Rogue Rear AEB False Activation TSB

Owners of the 2021 Nissan Rogue may experience false activation of the Nissan Rogue Rear AEB system. This issue can cause the vehicle to brake unexpectedly when backing up, even if there are no apparent obstacles behind the vehicle or while reversing down a sloped driveway.

Symptoms

Owners have reported the following specific symptoms related to the Rear Automatic Emergency Braking (AEB) system:

• "Rear Automatic Emergency Braking (AEB) is activating when there does not appear to be anything behind the vehicle"
• "Rear AEB activation occurs while backing down a sloped driveway"

These activations can be startling and potentially hazardous, as the vehicle brakes suddenly without an obvious reason.

Diagnosis / Trigger Conditions

This issue, specifically the Nissan Rogue Rear AEB false activation, is typically confirmed when a customer describes the symptoms mentioned above. The key is that the AEB system engages without a clear obstruction, particularly in situations like backing down an incline.

Repair Procedure Summary

To resolve the false activation of the Rear AEB system, technicians are instructed to perform an automatic reconfiguration of the sonar control unit. This process recalibrates the unit responsible for detecting objects behind the vehicle, aiming to prevent erroneous braking.

Required Tools

The automatic reconfiguration of the sonar control unit must be performed using the Nissan diagnostic tool, C-III plus.

What Owners Should Do

If you own a 2021 Nissan Rogue and have experienced unexpected braking from your Rear Automatic Emergency Braking system, especially when backing up without obstacles or on sloped driveways, you should contact your authorized Nissan dealership. Describe the symptoms you've encountered so they can diagnose the issue and perform the necessary sonar control unit reconfiguration.

This is a manufacturer communication (TSB), meaning it addresses a known issue but is not a safety recall. However, addressing this problem can improve your driving experience and safety.

NHTSA ID: 10206385