Two problems related to turn signal flasher unit have been reported for the 1999 Chevrolet Malibu. The most recently reported issues are listed below.
Turn signals and hazard lights work when they want to, which began last year 07/07. I replaced fuses to see if this was the problem. It continues to happen. After almost being rear-ended with my infant son in a carseat the back seat as my turn signals flashed twice and failed I found out later there had been a recall on the hazard/turn switch on the 2000 models of Malibu and not the 99's.
I purchased this car in late June of 2002. Have had no problems with it ex cept the turn signals (all of them) and the emergency flashers. They will work fine for a few days and then stop working with no warning. Sometimes the turn signals will start operating in a few moments or it could be days. As for the emergency flashers. The one time I had an occasion to use them, they flashed once. After that the turn signals and the emergency flashers did not work for days. I mentioned this to the dealer that I purchased the car from when I had the car in for a oil change. No mention was made of it on the work order and the service tech said they could find nothing wrong. Dt.