2003 Toyota 4Runner Owners Manual - Page 1194

'03 4Runner_U (L/O 0305) Auto anti-glare inside rear view mirror In automatic function mode, if the mirror detects light from the headlights of the vehicle behind you, the mirror surface darkens slightly to reduce the reflected light. To turn off the automatic function, push the "MIRROR" switch. To turn on the automatic function again, push the "MIRROR" switch. Adjust it before driving so that the rear view is in the best condition. When the inside air temperature is low, it may take little longer for the mirror to darken in response to the detection of headlights. Adjust the mirror so that you can just see the rear of your vehicle in the mirror. This mirror is equipped with auto anti- glare function. The function is designed to reduce glare from the headlights of the vehicle behind you during night driving. When the ignition key is inserted and turned on, the inside rear view mirror always turns on in the automatic function mode. The indicator illuminates to show you that the function is on. CAUTION Do not adjust the mirror while the vehicle is moving. Doing so may cause the driver to mishandle the vehicle and an accident may occur resulting in death or serious injuries. To ensure correct functioning of an anti-glare mirror sensor located on the back side of the mirror, do not touch or cover the sensor with your finger or a piece of cloth, etc. 94 2003 4RUNNER from Apr. '03 Prod. (OM35820U)