PASSLOCK(tm) SYSTEM: Notes

2004 Oldsmobile Bravada RWDSECTION Notes
WARNING: This page is about a different car, the 2002 GMC Savana, 2002 Chevrolet Chevy Express, 2001 GMC Savana, and 2001 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: If replacing Passlock(tm) module with a GM Service Parts Operations (SPO) replacement part, the module will learn Passlock(tm) sensor data code immediately. Existing PCM however, must learn the new fuel continue password when Passlock(tm) module is replaced. If replacing a PCM with a GM SPO replacement part, after programming, these modules will learn incoming fuel continue password immediately upon receipt of a password message. Once a password message is received, and a password is learned, a learn procedure must be performed to change this password again. A PCM which has been previously installed in another vehicle will have learned the other vehicle's fuel continue password and will require a learn procedure after programming to learn current vehicle's password. Use this procedure after replacing Passlock(tm) sensor, Passlock(tm) module or PCM.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.