Green "MPH" logo on speedometer
Thread Starter
Race Director
Joined: May 2010
Posts: 16,574
Likes: 13
From: Winfield IN
Green "MPH" logo on speedometer
I've noticed in my peripheral vision that this little green logo that says "MPH" in the top center of my speedometer flashes sometimes. It's not a repetitive flash or anything, more like it brightens and then dims every 7 seconds or so. Not sure if it does this all the time or what. I don't think it ever does it when I have my headlights on. I was wondering if this is some type of sensor for the twilight sentinel showing when the auto headlights would turn on or something? Any thoughts?
Race Director
Joined: Jul 2007
Posts: 18,681
Likes: 47
From: Reno is so close to Hell you can see Sparks , State Of Confusion
St. Jude Donor '12-'13-'14
Mine is blue and it does change at times, Its brightness depends on the outside lighting, Like if the car goes through some shade it changes, It is normal.
Mr.Bill
Mr.Bill
Melting Slicks
Joined: Jan 2009
Posts: 3,181
Likes: 286
From: Puyallup Washington
When driving on a sunny day, you can notice the brightness of the "BLUE" MPH display change. When in a sunlit area of the road it will be at its brightest. When the car goes into a shaded area the display will dim. Corvette engineers did not want us to be blinded with a super bright MPH display when in the shade or on a cloudy day. Just think of the potential liability from all of the drivers blinded by the display who got in wrecks.
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
Drifting
Joined: Jul 2009
Posts: 1,359
Likes: 263
I thought I was seeing things, but when I try to catch it in shaded areas or in lit areas I don't notice anything happen. It's when I'm not paying attention I notice in my periph that it either dimmed or brightened. Weirds me out cause I can't figure out when it does what it's doing haha.
Race Director
Joined: Feb 2008
Posts: 17,336
Likes: 8
From: Maker of Sharp Objects, AL - Roll Tide
St. Jude Donor '10-'11-'12-'13-'14-'15-'16-'17
St. Jude Knife Maker
I thought I was seeing things, but when I try to catch it in shaded areas or in lit areas I don't notice anything happen. It's when I'm not paying attention I notice in my periph that it either dimmed or brightened. Weirds me out cause I can't figure out when it does what it's doing haha.
Thread Starter
Race Director
Joined: May 2010
Posts: 16,574
Likes: 13
From: Winfield IN
I don't know about you guys, and I will double-check on my way home from work today, but mine is green.
So, essentially, it simply changes brightness to be visible (and not too bright) to the driver based on the outdoor light and light in the cabin?
Administrator
Joined: Mar 2001
Posts: 368,390
Likes: 24,791
From: In a parallel universe. Currently own 2014 Stingray Coupe.
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03 thru '26
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
I've never paid that much attention to the MPH logo - now next time I drive the car I'll be looking to see what mine does.
Le Mans Master
Joined: Oct 2007
Posts: 6,868
Likes: 770
From: Kelso Washington
St. Jude Donor '09, '13, '15
I'm wondering if it is tied in with the same light level sensor as the HUD and headlight activation. Note that when you head directly into the low sun, the HUD becomes very bright so you can see it.
Team Owner
Joined: Jul 2006
Posts: 22,190
Likes: 4,178
From: Kannapolis NC
Look at it in the bright sunlight, then put your finger over the little sensor over the top button of the DIC buttons and you'll see it dim. Or shine a light into it at night and you'll see it brighten. (if the sensor is working)
Pro
Joined: May 2011
Posts: 629
Likes: 0
From: The North Bay Area Californa