No park lights or dash lights

Is it only the gauges or the all the instruments and heater controls? The first place I'd look at will be the dimmer switch. Normally the instrument lighting shares the same circuit as the parking/valet lights.

The dash lights are connected to the park lights. Check to see if the park lights come on. If no park lights, suspect a fuse or wiring issue. If park lights are ok, try slapping your hand on the dash area above the instrument panel to see if the lights come on/flicker. If there is a change, the instrument cluster assembly/electronics are the most likely cause of this problem

Head lights? Parking lights? Dash board lights? Head lights or parking lights I would go to the alarm system. If it's the dash board lights in the climate control panel, you have a major engine fault going on. Get your computer scanned.
Good luck. Jeff M.

Check your fuses first, park lights, I think. Pull the light switch to first click and check if your front park lights are on. If no lights are on, the headlight switch is probably bad. If the fronts work, but no tail lights or dash lights, the problem is probably a wiring problem under the dash. The same wire to the rear tail lights is usually with a splice to the dash illumination lights.

If can be issue with blown fuse or problem with cluster board circuit.

Check the help link provided below:----

Parking lights, tail lights and dash lights not working?

http://technoanswers.blogspot.com/2012/01/parking-lightstail-lights-and-dash.html
----------Thanks.

I am asuming you have checked the fuses if not start there, then look at the switch itself..

There are few help links provided to resolve this issue of dash board light not working.Click the link below to go through its procedure:-----Dash board lights not working? http://repairhelpcenter.blogspot.in/2012/02/dash-board-lights-not-working-on-gmc.html
----------- light in the dash blinks? http://repairhelpcenter.blogspot.com/2012/01/overdrive-light-in-dash-blinks.html
-----------Orange O/D warning light flashing on dash? http://repairhelpcenter.blogspot.com/2012/01/orange-od-warning-light-flashing-on.html
---------gauge on the dash quit working on? http://technoanswers.blogspot.com/2012/01/temperature-gauge-on-dash-quit-working.html---------No 4x4 light on dash? http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
----------Digital Dash Display not working? http://schematicsdiagram.blogspot.com/2011/12/cadillac-seville-digital-dash-display.html
---------warning on dash and alarm sounds? http://schematicsdiagram.blogspot.com/2011/12/chevrolet-tahoe-hood-open-warning-on.html
---------Light Stays On dash of car? http://schematicsdiagram.blogspot.com/2011/06/brake-indicator-light-stays-on-dash-of.html
----------The ABS and Traction Control Lights stays ON dash of car? http://schematicsdiagram.blogspot.com/2011/06/abs-and-traction-control-lights-stays.html
----------warning lights remains steady on dash? http://schematicsdiagram.blogspot.com/2011/12/abs-brake-warning-lights-remains-steady.html
---------light bulb under dash replacement?

http://schematicsdiagram.blogspot.com/2011/12/heating-knob-light-bulb-under-dash.html

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Parking lights, tail lights and dash lights not working? http://technoanswers.blogspot.com/2012/01/parking-lightstail-lights-and-dash.html

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How to replace Instrument panel and dashboard?

http://repairhelpcenter.blogspot.in/2012/02/how-to-replace-instrument-panel-and.html

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Tail lights and dash light fuse keeps blowing? http://technoanswers.blogspot.in/2012/02/tail-lights-and-dash-light-fuse-keeps.html

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This will help.

Thanks.

Hi, 1st check the bulbs in the back. Then check the fuses for brake and park. If they are OK the next would be the switches and ground connections. Good luck.

dash and tail sre tied together, so chk tail light fuse.

you have an abs fault. have your abs system scanned for codes.

your base brakes will continue to function normally