GM Service Manual Online
For 1990-2009 cars only

Extended or Delayed Upshifts for Cadillac Seville 1999

Extended or Delayed Upshifts

Checks

Action

Transmission Fluid Pressure Manual Valve Position Switch

Inoperative

Pressure Regulator Boost Valve

Stuck in bushing

Lateral Accelerometer

Circuit Malfunction -- Scewed Sensor