Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCADILLAC1999SEVILLE SLS V8-4.6L VIN YREPAIR AND DIAGNOSISTESTING AND INSPECTIONREPLACEMENT KEYS - PROGRAMMING - 10 MINUTE RE-LEARN PROCEDURE
1999 Cadillac Seville SLS V8-4.6L VIN Y
Replacement Keys - Programming - 10 Minute Re-Learn Procedure
1999 Cadillac Seville SLS V8-4.6L VIN YSECTION Replacement Keys - Programming - 10 Minute Re-Learn Procedure
Use this procedure after replacing:
^ Keys/Lock Cylinders
^ Pass Key III Module
^ PCM (if necessary, see Important above)
TOOLS REQUIRED
^ Tech 2
^ Techline Terminal with current Service Programing System (SPS) software
1. Connect the Tech 2 Diagnostic tool.
2. Select Request Information under Service Programing.
3. Disconnect the Tech 2 from the vehicle and connect it to a Techline Terminal.
4. On the Techllne Terminal, select Theft Module Re-Learn under Service Programming.
5. Disconnect the Tech 2 from the Techline Terminal and re-connect it to the vehicle
6. Turn ON the ignition, with the engine OFF, using a Master Pass Key III Key (Black).
7. Select VTD Re-Learn under Service Programming.
8. At this point the Tech 2 must remain connected for the duration of the 10 minute Re-Learn period.
9. Observe the Security telltale, after approximately 10 minutes the telltale will turn off. (the vehicle is now ready to re-learn the key information and/or passwords on the next ignition switch transition from OFF to CRANK)
10. Turn OFF the ignition and wait 5 seconds.
11. Start the vehicle (the scan tool has now learned the key and password information).
12. With the scan tool, clear any DTCs
^ Keys/Lock Cylinders
^ Pass Key III Module
^ PCM (if necessary, see Important above)
TOOLS REQUIRED
^ Tech 2
^ Techline Terminal with current Service Programing System (SPS) software
1. Connect the Tech 2 Diagnostic tool.
2. Select Request Information under Service Programing.
3. Disconnect the Tech 2 from the vehicle and connect it to a Techline Terminal.
4. On the Techllne Terminal, select Theft Module Re-Learn under Service Programming.
5. Disconnect the Tech 2 from the Techline Terminal and re-connect it to the vehicle
6. Turn ON the ignition, with the engine OFF, using a Master Pass Key III Key (Black).
7. Select VTD Re-Learn under Service Programming.
8. At this point the Tech 2 must remain connected for the duration of the 10 minute Re-Learn period.
9. Observe the Security telltale, after approximately 10 minutes the telltale will turn off. (the vehicle is now ready to re-learn the key information and/or passwords on the next ignition switch transition from OFF to CRANK)
10. Turn OFF the ignition and wait 5 seconds.
11. Start the vehicle (the scan tool has now learned the key and password information).
12. With the scan tool, clear any DTCs
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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.