B1018 on NISSAN MAXIMA
Passenger occupant classification / air bag sensor fault
Methodology: We combine code standards with complaint and reliability patterns, then review for clear, vehicle-first diagnosis steps.
Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).
Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.
What B1018 Means on Your NISSAN MAXIMA
B1018 on Nissan Maxima points to passenger occupant classification / air bag sensor fault. FixIt matched 4 NHTSA owner reports for this exact code/vehicle pair, so use this page to prioritize the most likely symptoms, components, and next checks before replacing parts.
Real NISSAN MAXIMA Owner Reports
Source: NHTSA Complaints Database
"FEBRUARY 2009 I PURCHASE A 2009 NISSAN MAXIMA VIN#1N4AA51E29C....... THERE HAVE BEEN MINOR ISSUES THAT I HAVE DEALT WITH. LET ME EXPLAIN, FIRST THE MOTORS THAT MOVE THE STEERING COLUMN UP/DOWN (WARRANTY COVERED) AND IN/OUT (A $600 ESTIMATE) BOTH HAVE GONE OUT. SECONDLY, THE LEFT FRONT TIRE PRESSURE SENSOR ($186) WAS FO"
"I OWN A 2009 NISSAN MAXIMA. IN THE YEAR 2016 THE AIRBAG LIGHT FOR THE PASSENGER SEAT BEGAN TO CONTINUOUSLY BLINK AND THE INDICATOR LIGHT SAID 'AIRBAG OFF' WHETHER THE SEAT WAS OCCUPIED OR NOT. THINKING THE LIGHT NEEDED TO BE RESET AS MY AIRBAGS HAVE NEVER DEPLOYED I TRIED THIS ROUTES. IT ULTIMATELY PROVED NOT TO BE THE"
"I PURCHASED THE 2009 NISSAN MAXIMA FROM THE DEALER, BRAND NEW, IN NOVEMBER, 2008. SEVERAL MONTHS LATER, I NOTICED THAT AS I SAT IN THE PASSENGER SEAT, THE AIRBAG LIGHT WOULD COME ON INDICATING THAT THE AIRBAG WOULD NOT DEPLOY IN AN ACCIDENT. I AM 5'4" AND 140 POUNDS AND NOT A CHILD OR EVEN A SMALLER ADULT. THROUGHOUT T"
"Code B1018 failing Occupant sensor in the passenger seat"
All reports filed by vehicle owners directly with the U.S. Department of Transportation.
📊 Complaint Trend by Model Year
Common Causes on NISSAN MAXIMA
Based on NHTSA complaint component analysis for this vehicle.
What To Do Next
-
1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
-
2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
-
3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.