Nissan Altima 2010–2012 — technical service bulletin
Bulletin NTB20-020 · NHTSA communication 10173559 · issued Mar 26, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2010–2012
model years
3
vehicle entries
Official summary
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: ï · - The MIL is ON and DTC P2423 is stored in the ECM. ï · - The VIN is shown in SERVICE-COMM under â L32 NMOG EXT_DTC P2423 NTB20-020.â ï · - 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
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.