Technical Service Bulletin NTB20-020 — 2012 NISSAN ALTIMA

2010-2012 ALTIMA; MIL ON WITH DTC P2423 NOTE: The warranty period for the front exhaust tube with catalyst (20010-ZX10A) has been extended on the Applied Vehicles if the following criteria are met:  - The MIL is ON and DTC P2423 is stored in the ECM.  - The VIN is shown in SERVICE-COMM under “L32 NMOG EXT_DTC P2423 NTB20-020.”  - The vehicle is within the L32 NMOG Warranty Extension period (refer to Table 1). IF YOU CONFIRM The MIL is ON and DTC P2423 (HC ADSORPTION CATALYST FUNCTION) is stored in the ECM, AND The vehicle is within the L32 NMOG Warranty Extension period, AND L32 NMOG EXT_DTC P2423 NTB20-020 appears in SERVICE-COMM for the vehicle. ACTION Replace the front exhaust tube with catalyst.