The instrument light dimmer is on the main lighting switch - rotate to dim or brighten.
Have you checked that your instrument light bulbs are all OK?
where is the speed sensor located on the 2004 Chevrolet suburban 4 wheel drive z71
It is located at the chassis under the driver side.
Fuse for headlights 1990 Chevrolet suburban is located on the driver's side dash on left right behind the fuse panel. It is just above the parking brake.
The 2003 Chevrolet Suburban fuel filter is located inside of the gas tank. You will to remove the gas tank in order to change the fuel filter.
The throttle position sensor on a 2003 Chevrolet Suburban is located on the side of the throttle body. It notifies the vehicle's computer of the actual position of the throttle plate in relation to the throttle body.
You will have to drop the fuel tank to replace it as it is in the top of the tank.
Located on the lower tube of the condensor, behind the grill on the passenger side.
The 1999 Chevrolet Suburban speed sensor is located on the back of the transmission. The speed sensor will be in the upper left-hand corner.
the fuel pump is located in the fuel tank. you need to remove the tank to access it.
The bottom of the engine. There is a plug that you drain the oil out of. that plug is in the pan.
The 2002 Chevrolet Suburban fuel pump relay switch can be found on the frame of the vehicle. The switch will be to the right of the gas tank.
I believe that it is your oxygen sensor.