1. Check the Obvious:
* Battery: A weak or dying battery can trigger the anti-theft system. Try jump-starting the car with a good battery and cables. If it starts, your battery needs replacing.
* Key: Make absolutely sure you're using the correct key. Try all keys that came with the car. A faulty key fob or transponder chip inside the key is a common culprit.
* Steering Wheel Lock: Ensure the steering wheel isn't locked. If it is, gently wiggle the wheel back and forth while trying to turn the key.
2. Passive Anti-theft System (PATS):
The 1997 Grand Prix GT likely uses a Passive Anti-Theft System (PATS). This system uses a transponder chip in your key to communicate with the car's computer. If the communication fails, the car won't start.
* Key Programming: If you've recently had the key replaced or the battery replaced in your key fob, the key might need to be reprogrammed. This requires specialized tools and usually a visit to a locksmith or dealership. They have the equipment to program the key to your car's system.
* Faulty Receiver: The receiver in your car that reads the key's transponder could be faulty. This is a more complex problem requiring a mechanic or diagnostic scan to determine.
3. Other Electrical Issues:
* Alarm System: A separate aftermarket alarm system might be interfering. Check if the alarm is activated. Disconnecting the alarm (with caution) could help determine if it's the cause.
* Security System Problems: There could be a short circuit or malfunction in the car's own security system wiring. This needs a professional diagnosis.
4. Professional Help:
If you've tried the above steps and the car still won't start, it's time to seek professional help:
* Locksmith: A qualified automotive locksmith specializing in PATS systems is your best bet. They have the tools and expertise to diagnose and often fix key and PATS issues.
* Mechanic: A reputable mechanic can perform a diagnostic scan to identify any electrical faults within the car's system.
Important Warnings:
* Avoid bypassing the system: Attempting to bypass the anti-theft system without proper knowledge is extremely risky and could damage your car's electronics.
* Don't tamper with wiring: Incorrectly working with car wiring can be dangerous and lead to further problems.
In short, there's no simple "reset" button. Focus on diagnosing the root cause of the problem instead. The most likely culprits are a faulty key or a problem with the PATS system. A professional will be able to diagnose and fix the problem safely and efficiently.
