Pontiac GTO Forum banner
1 - 6 of 6 Posts

·
Registered
Joined
·
24 Posts
Discussion Starter · #1 ·
Does anyone know how to access the bulb behind the MPH/KPH light in the speedometer ?

I have removed the panel below the steering wheel, which allows access to the fuse panel.
I did not look closely to see if it is easy to access the instrument cluster from there.
Or, if the top of the dash could be removed.
Can someone with a shop manual or CD tell me how to get to the bulb.
I would like to replace it with a lower wattage, or paint it BLACK,
or do something to cut the brightness in half, or a quarter...

Thanks
 

·
Registered
Joined
·
46 Posts
philpio said:
Does anyone know how to access the bulb behind the MPH/KPH light in the speedometer ?

I have removed the panel below the steering wheel, which allows access to the fuse panel.
I did not look closely to see if it is easy to access the instrument cluster from there.
Or, if the top of the dash could be removed.
Can someone with a shop manual or CD tell me how to get to the bulb.
I would like to replace it with a lower wattage, or paint it BLACK,
or do something to cut the brightness in half, or a quarter...

Thanks
The top 3 solutions from another board*:

(3) Cut a piece of opaque or tinted tape and place it over the offending light.

(2) Cut a piece of static cling plastic film and place it over the offending light.

And -- drum roll followed by cymbal crash, please --

(1) Schedule a visit with the dealer service department and hand them this:

----------------------------cut along this line----------------------------

Speedometer MPH Indicator Too Bright (Reduce MPH Indicator Brightness Using Tech 2) #04-08-49-023 - (Sep 10, 2004)
Speedometer MPH Indicator Too Bright (Reduce MPH Indicator Brightness Using Tech 2®)
2004 Pontiac GTO

Built Prior to VIN Breakpoint 4L299640 [I don't think this is relevant.]

Condition
Some customers may comment that the MPH indicator on the speedometer is too bright during night driving and that it does not dim with the IP lamps.

Correction
Follow the procedure below using the Tech 2® to reduce the brightness of the speedometer MPH indicator. This procedure must be followed exactly.

Important
The Tech 2® must contain software version 24.005 or later available from Techline® starting July 2004, on the TIS 2000 version TIS 07/2004 data update or later.

Install the Tech 2® to the vehicle and power on.
Select "Diagnostic" from the menu.
Build the vehicle from the menu options.
Select "Body" from the menu.
Select the correct transmission type.
Select "Instrument Panel Cluster" from the menu.
Select "Special Functions" from the menu.
Select "Programming" from the menu.
Select " Instrument Configuration" from the menu.
Press Enter.
Press "Change Data". Even though the screen deals with tire size and speed pulses, the data stream changes the MPH indicator brightness.

----------------------------cut along this line-----------------------------

*ATTENTION, Moderator (I don't mean to scream, but I wanted to get your attention):

Please explain your policy for links to other boards. I hope that you will allow us to link in the interests of a free and easy exchange of ideas, but I copied the above instructions, instead.

Ken


:cheers
 

·
Registered
Joined
·
24 Posts
Discussion Starter · #3 ·
I have used Option (2), cutting the Valvoline logo from the Oil Change window sticker.
I just scheduled a stop at the dealer for Friday 11/5.
I'll report back after the 'fix'.
Thanks a lot for the TSB info.
 

·
Registered
Joined
·
2,473 Posts
AWESOME TSB info. This has been a huge bitch of mine since the first night I took delivery of my Goat.

Making an appointment...
 

·
Registered
Joined
·
265 Posts
I had mine done at lunch time. Takes the dealer 18 minutes, and it is well worth every minute!

Sooo much better now! THANK YOU Capra2d!!

---Larry
 

·
Registered
Joined
·
24 Posts
Discussion Starter · #6 ·
Had my light fixed last Friday.
Under 20 minutes.
It is now just slightly brighter than the other panel lights.
Thanks a LOT.
 
1 - 6 of 6 Posts
Top