2004 Saab 9-3 Owner's Manual - Page 208

208 Car care If a brake light bulb fails If a brake light bulb fails, the adjacent taillight will act as a brake light to ensure traffic safety. Change the broken bulb when possible. All rear light bulbs are of the same type and rated 21 W, with the exception of the license plate lighting which is rated 5 W. Wrong bulb fitted If a dipped or main beam bulb of too high a rating is fitted, a bulb failure message will be shown on the SID (a too high wattage bulb can damage the reflector). If the following message is displayed but the bulb shines, it is most likely that an incorrect bulb has been fitted. Right high beam failure. Note: When changing bulbs, fit the same type of bulb (e.g. Long-Life) as that removed. Changing bulbs WARNING Before changing a bulb in the engine bay, switch off the engine to avoid the danger of fingers and hands being injured by moving parts. The radiator fan can cut in even when the engine is switched off. NOTICE Switch off the ignition before changing a bulb, to avoid possible short-circuiting. Autochecking of lights The bulbs that are most important from the point of view of traffic safety are monitored by the car's electrical system. If one of these bulbs should fail, a message will be displayed on the SID. Example of SID message: Left low beam failure. The following bulbs are not checked: parking lights, front fog lights, reversing lights, license plate lighting, side marker lights and side direction indicators. Headlight aiming, page 257.