HVAC display.
Thread Starter
2nd Gear
Joined: Apr 2023
Posts: 2
Likes: 0
HVAC display.
02 convertible. Is there any way to increase the brightness of this display? Any 3rd party replacements? With the top down during the day, the temp display is unreadable. Clearly GM had no Human System Engineers in 01 when they designed this.
Instructor
Joined: Apr 2022
Posts: 153
Likes: 92
From: Atlanta
I had the same problem in my 02 vert. During the day with the top down you couldn't see the display at all. Fixing it yourself involves opening the HVAC unit and resoldering certain components. I sent mine to ABSFixer.com because they did a good job on my EBCM. $75 and it was back to me the same week. It's as bright as my radio now.
Race Director
Joined: Oct 2004
Posts: 12,864
Likes: 4,667
Your 8 resistors are loose. Can be resoldered easily. Many threads/YT Videos about it. If youre not comfortable doing yourself, try Travis@Vettronics. Phone# (618) 975-3607. Probably $65-$75.
Le Mans Master
Joined: Dec 2017
Posts: 5,590
Likes: 3,317
From: Virginia
2021 C5 of the Year Finalist - Modified
St. Jude Donor '21-'22
It just needs to be resoldered. Careful removing the center consol. The plastic is brittle, and the retention pins can break easily.
Drifting
Joined: May 2007
Posts: 1,552
Likes: 324
From: Mid Ohio
My 04 was dim too. Re-soldered them myself. If your not skilled at soldering small parts you might want to watch some YT vids about soldering techniques. I wasn't and getting just the right amount of solder and getting it to flow was the hardest part for me. Took me about 1.5hrs total + buying a solder gun w/a small tip and doing some trial and error.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Race Director
Joined: Oct 2004
Posts: 12,864
Likes: 4,667
One thing I didn't mention in my earliest post is that Travis@Vettronics can also replace all of your burned out bulbs, of which I had many. While he's in there he can also replace all of your bulbs with LEDs, and he can even color coordinate your bulbs to several different colors, like red, blue, etc. Just a FYI.....
Intermediate
Joined: Jun 2017
Posts: 42
Likes: 12
From: Mobile Alabama
There are links on the internet that will trade your old "core" for one that they have repaired, so they say. From what I have read its a soldering problem on the board, where solder joints have come loose or broken. Forget GM! They don't care and have NO replacements. They will barely touch a C5 at their dealerships, in my experience. I have a 2004 Z06 Commemorative that I bought brand new. I've had troubles with my display for years and now it just is dead. Everything still works, you just have no lights on the display, so, no visual clue. No spares & No cares. Gone are the Good Old Days of GM.