1998 GMC Sonoma Owner's Manual - Page 74

Theft Vehicle theft is big business, especially in some cities. Although your vehicle has a number of theft-deterrent features, we know that nothing we put on it can make it impossibleto steal. However, there are ways you can help. Parking Lots If you park in a lot where someone will be watching your vehicle, it's best to lock it up and take your keys. But what if you have to leave your ignition key? What if you have to leave something valuable in your vehicle? 0 Key in the Ignition If you leave your vehicle with the keys inside, it's an easy target for joy riders or professional thieves -- so don't do it. When you park your vehicle and open the driver's door, you'll hear a chime reminding you to remove your key from the ignition and take it with you. Always do this. Your steering wheel will be locked, and so will your ignition. If you have an automatic transmission, taking your key out,also locks your transmission. And remember to lock the doors. 0 Put your valuables in a storage area, like your glove box. Lock all the doors except the driver's. Passlock@ Your vehicle is equipped with the Passlock theft-deterrent system. Passlock is a passive theft-deterrent system. The system is armed once the key is removed from the ignition. Passlock enables fuel if the ignition lock cylinder is turned with a valid key. If a correct key is not used, fuel is disabled. During normal operation, the SECURITY light will go off after the engine is started. Parking at Night Park in a lighted spot, close all windows and lock your vehicle. Remember to keep your valuables out of sight. Put them in a storage area, or take them with you. 2-10