Need GM part number for a 1999 corvette gauge cluster non HUD

The instrument cluster HUD and the instrument cluster HUD dimmer switch are both connected to the instrument panel wiring harness.
The instrument cluster HUD dimmer switch performs the following functions:
• Provides power to the instrument cluster HUD
• Varies the intensity of the display image
• Controls the motor driven mirror
• Varies the height of the display image

The HUD dimmer switch gets power from IP / IGN fuse -10 amp Fuse Block
Right side of the IP, in the IP compartment opening

Common problem with GM they will fail sooner or later, gonna need to be replaced\rebuilt check out this product on amazon



AUTOOL X60 Car OBD GPS HUD Multi-function Digital Meter Alarm Speed Water-Temp Gauge Malfunction-Test for 12V OBD-II Standard Vehicles Automotive Display Hud

You need to send instrument cluster to a re manufacturer , Broken solder joint . GM had instrument cluster issue's 2003 to 2006 , need's to have new gauge stepper motors an new lights put in .
Gm 03 to 06 instrament panel mileage transfer to used cluster Millage...

How to repair GM Instrument Cluster Speedometer Gauge Stepper

GM vehicles from 1999-2006 had many of these gauge clusters go out. It is very unlike that it is a fuse as most of that stuff (speedometer, etc) is gear driven. You can buy a re-build cluster at most parts stores or through a GM dealership fairly cheaply, and that's probably your best option.

Most likely the cluster. It really needs to be on a scanner to tell. A bad connection at the plug could also do this.

the gauge cluster lights are not functioning, check them by pulling out the guage cluster and replacing burnt bulbs

yes those were the early dash clusters that were bad you need to replace it with a new or reman one try ecklers.com for starters go to a store and buy a corvette magazine they all have ads in them for these hope this helps

the Instrument panel cluster on the silverados and sierra and tahoes all have this problem the cluster assemblys go bad for no apparant reason and you will need a new cluster they are 260 and they are non reparable , and a gm dealer will need to program your mileage and engine hours into the new controler (cluster)

GM Lumina/Grand Prix/Cutlass Supreme/Regal 1988-1996 Headlight Switch - REMOVAL & INSTALLATION

Except With Head Up Display (HUD)
(see Figures 1, 2, 3 and 4)



Fig. 1: Headlight switch location and mounting-1988 Regal shown



Fig. 2: The headlight switch is secured with clips and screws-1990 Lumina shown



Fig. 3: Light switch location and attachment-1993 Cutlass Supreme



Fig. 4: Headlight switch assembly-1996 vehicle shown

1. Disconnect the negative battery cable.
2. Remove the instrument cluster trim plate by unfastening the retaining screws or simply unsnapping it.
3. If necessary, remove the air outlet trim plate. If may be secured with screws/bolts or clips.
4. If accessible at this time, detach the switch electrical connector.
5. Remove the switch, using one of the following procedures:
   1. Unfasten the retaining bolts/screws from the switch, then remove the switch from the instrument panel.
   2. Unsnap the headlight switch from the instrument panel.
   
   
6. If not already done, detach the electrical connector from the switch at this time.
   

To install:

1. Attach the switch electrical connector and fasten the switch to the instrument panel. If the switch is secured with screws, tighten to 18 inch lbs. (2 Nm).
2. Install the air outlet and cluster trim plates.
3. Connect the negative battery cable.

With Head Up Display (HUD)
(see Figure 5)



Fig. 5: The HUD incorporates the headlight, fog lamp and HUD switches

1. Disconnect the negative battery cable.
2. Remove the steering column opening filler panel.
3. Remove the instrument cluster, as outlined earlier in this section.
4. Depress the locking tabs, then pull the switch out.
5. Detach the HUD electrical connectors.

To install:

1. Attach the switch electrical connectors.
2. Snap the switch securely into the instrument panel.
3. Install the instrument cluster.
4. Install the steering column opening filler panel.
5. Connect the negative battery cable.

Hope this help (remember comment and rates this).