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User Rank
"Longer, Lower, Wider ..."
gafisher   5/24/2013 5:57:14 AM
"... much as big fins did on vehicles a half-century ago."

What a great comparison!  We've already got electronic curb feelers; maybe a modernized version of fender skirts will be next.

Seriously, does Cadillac really think tricked-out lighting effects are what their core customer base wants?

Caddy Signature

John E
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Re: Burnt out LEDs
John E   5/23/2013 6:02:06 PM
I have seen that a few times lately as well.  I thought it was a defect until I notied that the turn signal was on.  Did Audi do that intentionaly to make the turn signal more visible? 

User Rank
Re: But let a motorcycle try it
kenish   5/23/2013 3:04:26 PM
"Look at me" is a good safety feature on a motorcycle, and I'd apologize to the officer for being a "distraction" to other motorist's texting.

FYI, the Ducati Panigale has full LED lighting including the headlights.  http://ducati.com/bikes/superbike/superbike_1199_panigale_r/equipment/led_lights/index.do

(Funny that a 370 pound, 195hp vehicle has a lighted number plate !)

It's their flagship motorcycle but I'm sure it will migrate to the rest of their product line (and other manufacturers) over the next few years.



User Rank
What was this article about???
kf2qd   5/23/2013 12:21:28 PM
I thought this was supposed to be an article talking about LEDs, but in all the pictures the LEDs were barely visible.


If the desire was to advertise a behemoth car, you succeded, if it was to cover the uses of LED lighting? It came up a bit short. Just some nice advertizing from Cadilac...

User Rank
jhankwitz   5/23/2013 11:06:25 AM
 "the first vehicle to employ dual LED-based daytime running lights"? I've seen several current production cars with this, including my Toyota Venza. My wife calls it scary and ominous when I drive into the driveway in the evening.

User Rank
Re: But not the primary headlight
Joe_Hardin   5/23/2013 10:59:10 AM
National Highway Traffic Safety Administration's (NHTSA) Federal Motor Vehicle Safety Standard 108 (FMVSS) regulates all automotive lighting, signalling and reflective devices in the United States.

Audi has an active headlight system on sale in Europe using a multiple-LED matrix.  They are individually controlled (off or dimmed), depending on conditions.

Audi cannot use these lights in the US because the NHTSA ruled they do not meet these federal regulations written circa 1968.

You can find numerous articles on this subject in the automotive sector press.


User Rank
There are far too many parts not adding value in this design
BrusselsSprout   5/23/2013 10:55:13 AM
While I am able to purchase this vehicle, I would never spend the money to keep it up.  I would rather have fewer components, well styled simpler design, and good performance.

Off the show room floor I want to use LED's for a reason, not for effect.  The aftermarket people are really good at deploying them for effect as options.  Personally I do not want to drive more components with the attendant higher operating cost.  How much more do we think the repair bill for a front end collision will run just because of the do-dads?  Further, I suspect this car continues in the vein of mediocre American suspension tuning as well, so I cannot see the value.

I would rather drive an '88 LTD Crown Vic on the cheap with mediocre to poor handling, rather than consume capital needlessly on gaudy and unnecessary expense.  In fact I do, so I guess Detroit has good reason to dismiss my viewpoint out-of-hand.

Old Man
User Rank
Re: bad idea and what is that front end?
Old Man   5/23/2013 10:26:00 AM
 I recently attended a training where the 3rd brake light issues on the older Cadillac's was discussed.  When GM introduced the LED 3rd brake light, they were very early adopters of the technology.  They did due diligence reliability testing, but their design still failed in the field.  They ended up running a HALT test and found the source of the issue.  It was not the LEDs as components that fail, it was the wires that interconnected the LEDs.

By being early adopters of LED lighting in automotive applications, GM is ahead of the iterative learning curve.  I would not hesitate to buy a GM product with lighting like this.  I would, avoid most other automakers like Audi who have recently added LED accent lights.

And this is not an issue of LED reliability... the LEDs as components are extremely reliable.  The issue is the circuit board design, solder connections, interconnect wires, LED cooling methods, ETC...  It seems that engineers think, 'Gee, LEDs last a long time.  Let's slap some on a PCB and throw it behind some glass and it will last forever.' 

A fantastically reliable LED is useless in an open circuit.

bob from maine
User Rank
Re: bad idea and what is that front end?
bob from maine   5/23/2013 10:20:42 AM
We have a mandatory annual vehicle inspection and if, during that inspection, one LED is found burned out or not functioning, the car fails! Replacing a single LED is beyond most small garages and for the most part, single LEDs are NOT available at the dealer. Thus one burned out LED can end up costing you several hundred $$. Yes, LEDs are, by design, capable of lasting 20,000 hours, but unfortunately LEDs are connected to other 'stuff' which has the shelf life of bread! This is not progress.

TJ McDermott
User Rank
Re: But not the primary headlight
TJ McDermott   5/23/2013 10:06:56 AM
Mr.Hardin, can expand on the Audi problem and the spec you noted?

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