GM Service Manual Online
For 1990-2009 cars only
  1. Sit in the LH front seat.
  2. Close the LH front door.
  3. Buckle the LH front seat belt.
  4. Unbuckle the LH front seat belt.
  5. Turn ON the ignition, leaving the engine off.
    • The fasten seat belt chime sounds for 4 to 8 seconds.
    • The FASTEN BELTS indicator illuminates for 70 seconds.
  1. Turn OFF the ignition.
  2. Buckle the LH front seat belt.
  3. Turn ON the ignition, leaving the engine off.
    • The fasten seat belts chime does not sound.
    • The FASTEN BELTS indicator illuminates for 5 seconds (bulb check).