2008 Subaru Impreza Owner's Manual - Page 217

Interior equipment 6-9 uine SUBARU cigarette lighter plug. Do not use a non-genuine cigarette lighter plug in the socket. Doing so may cause a shortcircuit and overheating, resulting in a fire. . If the socket is ever used for a plug-in accessory such as a cell phone, that may damage the portion of the socket's internal mechanism that causes a cigarette lighter plug to "pop out" after its lighter element is heated. Therefore, do not place a cigarette lighter plug in a socket that has been used, even once, to power a plug-in accessory. Doing so may cause the plug to stick and overheat, creating a potential fire hazard. Ashtray (if equipped) CAUTION Do not use ashtrays as waste receptacles or leave a lighted cigarette in an ashtray. This could cause a fire. NOTE Particles of ash and tobacco will accumulate around the hinges of the ashtray's inner lid. Clean them off using a toothbrush or another narrow-ended implement. A portable front ashtray is available from your SUBARU dealer. It fits into one of the cup holders built into the center console. When using the ashtray, open the ashtray lid. Fully close the lid after using it to help reduce residual smoke.