21B68-S1

In some of the affected vehicles, it may be possible that the TMAP (Temperature Manifold Absolute Pressure) sensor may ice over while driving in cold temperatures for extended periods of time. An iced over TMAP sensor may cause the check engine light to illuminate with diagnostic codes P1A0C, P2282, or P0106 in the PCM (powertrain control module). These codes may lead to the PCM disabling the eninge and a "Stop Safely Now" message appearing in the instrument cluster.