Is there any way to improve the HUD brightness.
My old 1995 Grand Prix had the HUD and was bright, and my sons 2006 Grand Prix w/HUD is very bright.

I can see mine, but even at the highest setting, it is nowhere near as bright as these other two cars.

But then again, maybe this is as good as the HUDs work in the Bonneville.
Any tips on modding this?

Leon

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2006 GTO
2005 GXP Bonneville (his) (SOLD)
2004 SLE Bonneville (hers)
2004 SLE Bonneville (sons)
2006 GXP Grand Prix (sons)
1998 SLE GMC Sierra
1991 Yamaha FJ1200
1983 Trans Am (SOLD)
1979 Trans Am

Something is wrong...I keep mine at the lowest setting and I can still see it fine...I think I have an extra switch...

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Current stable...
2005 GXP Bonneville
1970 Mercury Cougar Convertible w/428CJ
1969 Mustang Fastback w/390
1972 Datsun 240Z
2010 Toyota 4Runner
2014 Ford Escape
Pictures of everything I have done
http://s225.photobucket.com/albums/dd200/

Yea, mine was really bright too. I think the only time it got washed out was in extremely bright direct sunlight.

One of two things is my guess Leon;

1) The HUD unit/projector is wearing out
2) Not the proper HUD reflective windshield. Meaning the windshield has been replaced.

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Retired Bonneville Owner and former GM Tech:
2004 Pontiac Bonneville GXP: Black/Ebony *SOLD*

Summer Toys: Combined 827 RWHP / 877lb/ft RWTQ
2004 Pontiac GTO: Impulse Blue Metallic/Black/M6: lots 'o mods, 415 RWHP / 405lb/ft RWTQ!
2006 Cadillac STS-V: Light Platinum Metallic/Light Gray/A6 - Spectre CAI, Magnaflow exhaust, Speed Inc. tune, 412 RWHP / 472lb/ft RWTQ

Daily Drivers:
2019 Chrysler Pacifica Limited: Mommy's new RGC
2015 Chrysler Town & Country Limited Platinum: Kids new RGC
2007 Chrysler Town & Country Limited: Sold to neighbor
2009 Pontiac G8 GT: L76, Sport Red Metallic
2003 Chevrolet Suburban 2500: Doeskin Tan - 8.1L Big Block... new plow truck
1999 Chevrolet Suburban: Sunset Gold Metallic - Daddy's winter beater and plow truck

I know it has the HUD windshield.

_________________

2006 GTO
2005 GXP Bonneville (his) (SOLD)
2004 SLE Bonneville (hers)
2004 SLE Bonneville (sons)
2006 GXP Grand Prix (sons)
1998 SLE GMC Sierra
1991 Yamaha FJ1200
1983 Trans Am (SOLD)
1979 Trans Am

All of ours are marginal at best during the day. Could be age, could be how the Bonneville's units were.

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Bye Bye:

RIP sandrock

Over time, some owners complain that the brightness goes down on their HUD. This happened to my '02 and it was replaced under warranty. Now it is happening again 5 years later. There is a fix that I found on another forum. It involves removing the HUD unit from the dash and resoldering 2 connections for the photocell to the board. The instructions for removing the HUD are from a Grand Prix, so you will need to use dash disassembly instructions for the Bonneville. Please see this link: http://hardcorepontiacs.com/forum/showthread.php/2420-How-to-fix-the-dimming-HUD-issue-in-a-97-03-Grand-Prix

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bobgto65

2004 Bonneville GXP 62,000 miles purchased 04/13
2009 G8 GXP PBM, M6 9580 miles, no mods, sold 08/15
2009 G8 GT SBM 36,000 miles, modded 430 whp
2002 Bonneville SSEi 203,200 miles (sold 3/2014)

My HUD is very dim when the sun is out. The brighter the sun, the dimmer it gets. Having come from a Grand Prix with the HUD, I've experienced this before and successfully fixed it by resoldering the photocell. It looks like it'll be a bitch to remove the HUD from the Bonneville, but I fully intend to do it soon. I've had the ENTIRE dash out of the Grand Prix, so bring it on.

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2004 Bonneville GXP Greystone Metallic - all stock
2002 S10 ZR2 - my favorite truck in the world
1998 K3500 CCLB - motor rebuild in progress, future mud truck
1994 S10 Blazer - 5" lift, narrowed ZR2 rear end, 32x11.5 tires, parting out due to overwhelming rust

I seem to remember someone along the way mention there is a fix for the 00+ DIM Hud

found this

viewtopic.php?f=18&t=3599

Cause being high resistance possibly from a bad connection?

_________________


Retired Bonneville Owner and former GM Tech:
2004 Pontiac Bonneville GXP: Black/Ebony *SOLD*

Summer Toys: Combined 827 RWHP / 877lb/ft RWTQ
2004 Pontiac GTO: Impulse Blue Metallic/Black/M6: lots 'o mods, 415 RWHP / 405lb/ft RWTQ!
2006 Cadillac STS-V: Light Platinum Metallic/Light Gray/A6 - Spectre CAI, Magnaflow exhaust, Speed Inc. tune, 412 RWHP / 472lb/ft RWTQ

Daily Drivers:
2019 Chrysler Pacifica Limited: Mommy's new RGC
2015 Chrysler Town & Country Limited Platinum: Kids new RGC
2007 Chrysler Town & Country Limited: Sold to neighbor
2009 Pontiac G8 GT: L76, Sport Red Metallic
2003 Chevrolet Suburban 2500: Doeskin Tan - 8.1L Big Block... new plow truck
1999 Chevrolet Suburban: Sunset Gold Metallic - Daddy's winter beater and plow truck

Today I noticed mine fading in and out regardless of how much light was hitting it. That's classic cold solder on the photo cell. You need a nice hot iron to do it right. I know because I had to do the grand prix twice. The 2nd time lasted until I sold it, which was a few years.

_________________
2004 Bonneville GXP Greystone Metallic - all stock
2002 S10 ZR2 - my favorite truck in the world
1998 K3500 CCLB - motor rebuild in progress, future mud truck
1994 S10 Blazer - 5" lift, narrowed ZR2 rear end, 32x11.5 tires, parting out due to overwhelming rust