P0135 on Your 2023 Murano
Your 2023 Nissan Murano has set a P0135 diagnostic code, indicating a malfunction in the oxygen sensor heater circuit for Bank 1, Sensor 1. The 2023 Murano features a 3.5L V6 engine (260 hp). On this transverse V6, Bank 1 is the rear cylinder bank.
At 1-2 years old, your Murano likely has warranty coverage for this repair.
Symptoms
- Check engine light on
- Possibly nothing unusual
- Minor fuel economy reduction
Common Causes
O2 Sensor Heater Element Failure
Manufacturing variation or early failure.
Connector or Wiring Issue
Assembly or connection problems.
Blown Fuse
Check the O2 heater fuse first.
Warranty Coverage
- Bumper-to-Bumper: 3yr/36k (likely still active)
- Powertrain: 5yr/60k
- Federal Emissions: 8yr/80k
This repair should be covered at no cost.
What to Expect at the Dealer
- Code scan and testing
- TSB check
- O2 sensor replacement
- Verification
Expect 2-3 hours for the repair.