If your Cavalier's Passlock system is preventing you from starting the car, it's likely because:
* Incorrect Key: You're using the wrong key. Try all your keys. If you only have one key, the system might be malfunctioning.
* Faulty Passlock Sensor: The sensor in the ignition switch might be malfunctioning.
* Low Battery: A weak battery can sometimes cause Passlock issues.
* Damaged Passlock Module: The Passlock module itself might be damaged or failing.
Solutions:
1. Try a Different Key: This is the simplest and first thing to check.
2. Battery Check: Get your battery tested at an auto parts store. A weak battery can cause strange electrical issues. Replace the battery if necessary.
3. Professional Help: This is usually the best option. A locksmith specializing in automotive locks or a qualified mechanic can:
* Program a new key: They have the tools to program a new key that will work with your car's Passlock system. This is often the most effective solution.
* Diagnose the problem: They can test the Passlock sensor and module to determine if they're faulty and need replacing.
* Bypass the Passlock system (not recommended): While possible, bypassing the Passlock system is generally not advisable as it can leave your car vulnerable to theft and may void any warranty.
Important Considerations:
* Do not attempt to bypass the Passlock system yourself unless you have extensive automotive electrical experience. Incorrect wiring can cause further damage.
* Getting a new key cut and programmed is usually cheaper and safer than attempting a repair yourself.
In short, there's no "reset" button. Contact a locksmith or mechanic to address the problem efficiently and safely.