2004 Pontiac GTO Owner's Manual - Page 75

How to Detect a Tamper Condition The exterior turn signals should flash twice when returning to your vehicle and pressing UNLOCK on the key. If they flash three times, an attempted break-in has occurred while the vehicle was armed. If you wish to find out what set the alarm off, turn the ignition on and look at the trip computer display for the ALARM ACTIVATED message being shown. The ALARM ACTIVATED message will be displayed first for one second, followed by the trigger point screens. The trigger point screens will also be displayed for one second. If more than one trigger point has been activated, the display will show each trigger point screen in sequence for one second, returning back to the ALARM ACTIVATED screen. The alarm screens will be shown in a continuous cycle until the trip computer MODE button is pressed. The center display then reverts to the last screen shown prior to the ignition being off. The possible trigger points are the following: Starting and Operating Your Vehicle New Vehicle Break-In Notice: Your vehicle does not need an elaborate "break-in." But it will perform better in the long run if you follow these guidelines: • Keep your speed at 55 mph (88 km/h) or less for the first 500 miles (805 km). • Do not drive at any one speed - fast or slow - for the first 500 miles (805 km). Do not make full-throttle starts. • Avoid making hard stops for the first 200 miles (322 km) or so. During this time your new brake linings are not yet broken in. Hard stops with new linings can mean premature wear and earlier replacement. Follow this breaking-in guideline every time you get new brake linings. The hood has been opened. The trunk has been opened. One of the doors has been opened. Hot wiring of the vehicle was attempted (ignition on without key inserted). 2-15