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.
2003 Chevrolet Malibu LSFACTORY OEM SERVICE PROCEDURE
10 Minute Learn Procedure
- Connect the Tech 2® to the vehicle.
- Select REQUEST INFORMATION under SERVICE PROGRAMMING.
- Disconnect the Tech 2® from the vehicle and connect it to a Techline terminal.
- On the Techline terminal, select THEFT MODULE RE-LEARN under SERVICE PROGRAMMING.
- Disconnect the Tech 2® from the Techline terminal and connect it to the vehicle.
- Turn ignition switch to RUN position, engine OFF.
- Select VTD RE-LEARN under SERVICE PROGRAMMING.
- Attempt to start the engine, then release the key to RUN position (vehicle will not start).
- Observe the SECURITY telltale, after approximately 10 minutes the telltale will turn OFF (the vehicle is now ready to relearn the password on the next ignition switch transition from OFF to CRANK position).
- Turn ignition switch to OFF position, and wait 5 seconds.
- Start the engine (the vehicle has now learned the password).
- Using the Tech 2® (scan tool), clear any DTCs.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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