B1018 on Nissan
Passenger seat occupant sensor mat malfunction (Nissan)
Severity: Inspect soon
The airbag light means the system has found a fault, and owner's manuals say to have it checked promptly because the airbags may not work as designed; this code concerns the sensor that decides whether the passenger airbag should deploy.
This page covers only what differs on Nissan. For what B1018 means, the ranked causes and the test order, see the B1018 guide.
What's different on Nissan
NissanYour car
2012 · Altima
Supported by vehicle dataNissan's training material uses the 2012 Altima to show the OCS codes: B1018 is the sensor mat, and the repair is the passenger seat cushion assembly.
2013–2014 · Altima
Possible — needs testingRecall 14V-138 updated the OCS software on these models because an occupied seat could be read as empty. The recall does not name B1018; ask a dealer whether it is open on your VIN.
Related recall campaigns: 14V138000
Sources and review
- Nissan Supplemental Restraint Systems: damage analysis and repair using Diagnostic Trouble Codes (TechNews, Summer 2016)
- Recall 14V-138: occupant classification system may not detect an occupied passenger seat
- 2023 Accord Owner's Manual: Airbag System Indicators
- Camry Owner's Manual (OM06291U)
- Last reviewed
- Written by
- Saurabh K.
- Editorial review
- Pending
- Technician review
- Technician review pending
This page explains what a code usually means; it is not a substitute for a professional inspection. How we source and review · Report an error