On certain 2013 Altima vehicles equipped with the V6 engine, an Engine Control Module (ECM) improper calibration may cause damage to the Air Fuel (A/F) sensors. To remedy this potential condition, Nissan is conducting this Voluntary Service Campaign to reprogram the ECM and, if needed, replace the A/F sensors. This service will be performed at no charge for parts or labor. See this bulletin for further detail. Campaign ID# PC218
