Battery drain on a 99 Tahoe

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djfive45

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Don’t forget this one Djfive. If the plastic cover on the visor is broken, that little light will stay on.
Fun you mentioned those ,I just noticed the driverside one is broken and the light is on! I would have never thought to go look in the car at those. I don't know when it broke so it's most likely the cause. Now to look up how to take the bulbs out.
 

OR VietVet

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Fun you mentioned those ,I just noticed the driverside one is broken and the light is on! I would have never thought to go look in the car at those. I don't know when it broke so it's most likely the cause. Now to look up how to take the bulbs out.
Hammer and chisel.
 

OR VietVet

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You can either do a parasitic draw test using an digital ammeter and a bridge, plenty of info on youbube or the net. Or we can fire up the diagnostic wheel of fortune and have a spin. I'll take visor vanity mirrors as my first guess.
See my #2 post to this thread. You and others have trained me to be aware of these little out of the way lights that cause these problems. Especially when it takes some time to drain down. Even old dogs like me can be taught new tricks. Good call.
 

97YukonNZ

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You can either do a parasitic draw test using an digital ammeter and a bridge, plenty of info on youbube or the net. Or we can fire up the diagnostic wheel of fortune and have a spin. I'll take visor vanity mirrors as my first guess.
I'll have a spin on the wheel and say'
Maybe the makeup light in the sun visor mirror! If your model has those. The switch and cover wear so it switches its self on causing a drain. :fishing1:
 
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