I just picked up my 1997 D90 the other day. I've been driving it sparingly during this salty-road weather we're having in Mass. Anyways, I've been trying to figure out what a few mystery buttons do, and some indicator lights.
Here's a picture of the indicator lights. The middle light stays on all the time, even with the truck off. I've tried pressing all sorts of light switch combinations and nothing gets any of the other 2 lights to turn on. I have no idea what these are for! I do have an alarm with keyless entry. The alarm light is on the other side of the dash, and blinks when the alarm is active so I'm thinking these aren't alarm related.
![](http://tylergraves.com/hosting/tg/3LED.jpg)
In a similar location, I have this black push button under the dash. Again, no idea what it does and it doesn't do anything when I press it.
![](http://tylergraves.com/hosting/tg/blackbuttonSM.jpg)
I also have what look like 2 toggles (3 position each) for city lights? These don't do anything either when I toggle them (with or without the parking/main lights on or off).
Any ideas? Love the truck. The white stuff in the pictures is snow blowing in :-)
Thanks,
Tyler from Mass.
Here's a picture of the indicator lights. The middle light stays on all the time, even with the truck off. I've tried pressing all sorts of light switch combinations and nothing gets any of the other 2 lights to turn on. I have no idea what these are for! I do have an alarm with keyless entry. The alarm light is on the other side of the dash, and blinks when the alarm is active so I'm thinking these aren't alarm related.
![](http://tylergraves.com/hosting/tg/3LED.jpg)
In a similar location, I have this black push button under the dash. Again, no idea what it does and it doesn't do anything when I press it.
![](http://tylergraves.com/hosting/tg/blackbuttonSM.jpg)
I also have what look like 2 toggles (3 position each) for city lights? These don't do anything either when I toggle them (with or without the parking/main lights on or off).
Any ideas? Love the truck. The white stuff in the pictures is snow blowing in :-)
Thanks,
Tyler from Mass.
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