Possible causes
– Low transmission fluid level
– Dirty or contaminated fluid
– Internal transmission failure
– Dirty or contaminated fluid
– Internal transmission failure
When is the obd code mean?
When the Powertrain Control Module (PCM) detects excessive Torque Converter Clutch (TCC) slip when the TCC should be engage, then the trouble code P0894 is set.
P0894 GMC OBD Code Description