SERVICE BULLETIN - AN INCORRECT LEARNING VALUE IN THE PCM MAY CAUSE A PRESSURE PROBLEM IN THE CVT UNDER CERTAIN DRIVING CONDITIONS, CAUSING A SURGE IN RPM BECAUSE THE CVT BELT SLIPS AT HIGHWAY SPEEDS, EVENTUALLY SETTING DTC P1890 (CVT SPEED CONTROL SYSTEM). DEPENDING ON IF DTC P1890 IS SET OR NOT, UPDATE THE PGM-FI SOFTWARE OR REPLACE THE TRANSMISSION AND UPDATE THE PGM-FI SOFTWARE.
