Two problems related to rearview mirror have been reported for the 1998 Chevrolet Suburban. The most recently reported issues are listed below.
Auto dimming for the rear view mirrors has become defective,and it doesn't dim the mirrors anymore. With no manual way to dim your rear view mirror this makes driving at night very dangerous at times. I took it to the dealer to get it fixed and they wanted $500 saying that the rear view mirror needed replaced. I feel that the replacement price is too exorbitant, and because of that it hasn't been replaced. It seems like they should put a manual flip switch on the mirror as a back-up in case the mirror would become defective like mine has.
Mirror switch and windshield wiper motor investigations upgraded at NHTSA.