flores

I replaced a burnt backup bulb on my 98 Camry when the indicator on the dash lit up. Replacement calls for an 18 watt bulb. I went to the local parts store and their listed replacemnt bulb was 16 watt. After replacement the light worked but the indicator light on the dash didn't go out. So, I went to the dealer and bought the 18 watt (for twice the price) and replaced the 16. The indicator light still does not go out. Any ideas on how I can solve this problem?