Nissan is committed to providing the highest levels of product quality and customer satisfaction.  Therefore, Nissan is extending the emission warranty coverage on some Rear Oxygen Sensors in certain model year 2013-2016 Sentra and Altima vehicles in the case of a short-to-ground condition to 20 Years or 200,000 miles, whichever occurs first, as described in detail below.

Coverage of all other vehicle components remains unchanged, and all other terms, conditions, limitations, and exclusions of Nissan’s New Vehicle Limited Warranty, Federal Vehicle Emission Control Limited Warranties, and California Vehicle Emission Control Warranties remain unchanged.

Reason for the Emission Warranty Extension

Certain 2013-2016 Sentra and Altima vehicles may not be able to correctly identify if the Rear Oxygen Sensor experiences a short-to-ground condition.  In the rare case of a Rear Oxygen Sensor short-to-ground condition, it may prevent detection of 13 specific Diagnostic Trouble Codes (DTCs) (P0037, P0038, P0130, P0137, P0138, P0139, P014C, P014D, P015A, P015B, P0420, P2096, or P2097) by the OBD monitoring system.

This has no effect on vehicle safety, drivability, or performance. There could be a slight decrease in fuel economy if this unlikely condition were to occur.

What the Limited Emission Warranty Extension Covers

During the warranty extension period, owners of certain model year 2013-2016 Sentra and Altima vehicles are eligible for annual Rear Oxygen Sensor voltage checks, upon request, to determine if a Rear Oxygen Sensor short-to-ground condition exists.

If a Rear Oxygen Sensor short-to-ground condition is found to exist during the covered voltage check, this Limited Emission Warranty extension will also cover the cost to inspect and repair or replace, as necessary, the sensor or wiring, and the cost to inspect for the existence of specific Diagnostic Trouble Codes (DTCs) for issues that may have been previously unidentified due to the short-to-ground condition.

If any of following 13 DTCs (P0037, P0038, P0130, P0137, P0138, P0139, P014C, P014D, P015A, P015B, P0420, P2096, or P2097) is first found only after a short-to-ground repair, this Limited Emission Warranty extension will cover the costs of parts and labor to inspect and repair the corresponding issue(s) according to the service manuals available to your dealer.

This check could take up to one (1) hour but could take up to three (3) hours to complete if related diagnostic trouble codes exist and require remedy. Your Nissan dealer may require your vehicle for a longer period of time based upon their work schedule.

What You Should Do

If you are interested in having a Rear Oxygen Sensor voltage check performed, Nissan recommends you schedule an appointment with your Nissan dealer prior to your annual or biennial Inspection/Maintenance (I/M or “Smog”) tests, in locations where such testing is required by law.

You may contact any Nissan dealer to schedule this check.  To minimize any inconvenience to you, it is important that you have an appointment before bringing your vehicle to the Nissan dealer for service.

Certain 2013-2016 impacted vehicles are eligible for this Limited Emission Warranty extension regardless of whether non-original parts were used for previous service and repairs, or if the service was performed by a repair facility other than a Nissan dealer.

To verify if your vehicle is included in this or any other Nissan campaign, please click here.

For help finding a dealer, please feel free to use our Dealer Locator.

Reimbursement:

If you own one of the identified 2013-2016 Sentra or Altima vehicles impacted by this warranty extension and previously paid to diagnose and repair a Rear Oxygen Sensor short-to-ground issue within the warranty extension term of 20 years or 200,000 miles (whichever occurs first), you may be eligible for reimbursement of this expense, even if your vehicle is now beyond the limits of the warranty extension. Please visit the Reimbursement Form tab listed within this campaign site, access the reimbursement claim form, and follow the instructions on the form, including submission of the following documents:

• Repair order(s)
• Proof of payment [may be on repair order (s)]
• Proof of vehicle ownership if repair is over $1,000

Special Notice for California Owners

You should also be aware that if your vehicle has a Rear Oxygen Sensor short-to-ground issue and it is not repaired, it could fail a Smog Check test in those areas of California where such testing is required under state law.

Diagnostic Trouble Codes that may have been masked by a failure to detect the SCG condition

In the unlikely event of a Rear O2 Sensor SCG, one or more of the following 13 DTCs could possibly be masked. Most are associated with diagnostic checks on the Front (Sensor 1) or Rear (Sensor 2) Oxygen Sensors that would not have been completed if a SCG existed.

1. P0037 – Heated Oxygen Sensor (HO2S) Heater Control Circuit Low (Bank 1, Sensor 2)
2. P0038 – Heated Oxygen Sensor (HO2S) Heater Control Circuit High (Bank 1, Sensor 2)
3. P0130 – Oxygen Sensor Circuit (Bank 1, Sensor 1)
4. P0137 – Oxygen Sensor Circuit Low Voltage (Bank 1, Sensor 2)
5. P0138 – Oxygen Sensor Circuit High Voltage (Bank 1, Sensor 2)
6. P0139 – Oxygen Sensor Circuit Slow Response (Bank 1, Sensor 2)
7. P014C – Oxygen Sensor Slow Response – Rich to Lean (Bank 1, Sensor 1)
8. P014D – Oxygen Sensor Slow Response – Lean to Rich (Bank 1, Sensor 1)
9. P015A – Oxygen Sensor Delayed Response – Rich to Lean (Bank 1, Sensor 1)
10. P015B – Oxygen Sensor Delayed Response – Lean to Rich (Bank 1, Sensor 1)
11. P0420 – Catalyst System Efficiency Below Threshold (Bank 1)
12. P2096 – Post Catalyst Fuel Trim System Too Lean (Bank 1)
13. P2097 – Post Catalyst Fuel Trim System Too Rich (Bank 1)

In the unlikely event of an actual Rear O2 Sensor short-to-ground, previously masked faults will be diagnosed correctly by the OBD system after SCG repair. Although anticipated to be rare, repairs for previously masked faults may include replacement of the Rear Oxygen Sensor, replacement of the Front Oxygen (Air/Fuel Ratio) Sensor, replacement of the monitored catalyst, or fixing intake air/exhaust gas leaks. Any remedies required to address previously masked faults are covered by this field action, and your technician will follow standard service manual procedures to make the required repairs.

If no Rear O2 Sensor short-to-ground is found on your vehicle, the OBD system is functioning properly. In this case, no DTCs (including those listed above) would have been previously masked, and corresponding repairs are not covered by this field action. Please refer to your vehicle’s Warranty Information Booklet for applicable coverages.