2008-2013 Cadillac CTS General Discussion Discussion, LED's and CTS in Cadillac CTS Second Generation Forum - 2008-2013; Working in industry I am receiving a lot of garbage emails, though some of them are useful too. Today I ...
- 05-23-13 12:55 PM #1
LED's and CTS
Working in industry I am receiving a lot of garbage emails, though some of them are useful too. Today I got this one: http://www.designnews.com/author.asp...dfpLayout=blog
An interesting reading...
- 05-23-13 03:19 PM #2
Re: LED's and CTS
Very interesting link, thanks for sharing. I actually found one of the comments on the article equally interesting. It reads as follows: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.
Also interesting to note that the commenter (who I assume is an engineer of some sort) says he's wary of Audi LEDs. It will indeed be interesting to see how those pretty LED accents on all those Audis running around look in five years' time.
Final note and I'll stop geeking out: Many folks don't realize that Caddy is quite a leader in lighting technology. In addition to the early adoption of LEDs in the '92 Sevilles, the 2000 Deville was the first car with all-led brake lights, and the '08 CTS was one of the first to use LED light tubes front and rear, and current Escalade Platinum is one of the first vehicles to use all-LED headlights.
- 05-23-13 03:33 PM #3Cadillac Owners Member
- Automobile(s): 2009 CTS4 DI Blue Diamond
- Join Date
- May 2013
Re: LED's and CTS
I'm a big fan of xenons, since they reach far and shine bright (extremely important for my aging eyes). But I know LEDs can be made to shine very bright and far also (I have an extremely expensive LED flashlight that proves it). All a matter of proper engineering.
- 05-23-13 06:43 PM #4
Funny this thread came up. I was behind an older Seville at lunch. The car looked like it had been to hell and back a few times but ALL his LEDs were still lighting up...lol. I'm behind nissans and other cars that have LEDs and many are out. I've always admired the Cadillac lighting systems and find them to be very reliable.
- 05-23-13 07:44 PM #5
Re: LED's and CTSThe new Acura RLX has all-LED bulbs and I believe Consumer Reports said they were feeble.
- 05-23-13 08:11 PM #6Originally Posted by BreakingThrough
I have no doubts that it is well engineered and in the long run it might be more reliable than my CTS (although my CTS has been solid so far), but I just couldn't bring myself to take on a car payment for that car. Again, not that it is a bad car, it just didn't move me (pun intended). If I didn't get my CTS I would've just kept my '06 RL.
- 05-23-13 11:02 PM #7
I do not like the Acura styling nor their interiors. Their seats are more comfortable but to me, nothing that I can afford beats the CTS fit and finish. I don't like the beak look either...it's a disgrace to all cars IMHO.
- 05-24-13 12:05 AM #8Originally Posted by jeffc83
Moving from a 2006 RL to the CTS, I was pleasantly surprised that the interior of the CTS was very comparable to my previous RL.
I will say though that Acura still does the best job of integrating technology. While the voice commands in the CTS work well enough, the RL had a much more extensive vocabulary that allowed you control features beyond the infotainment system. For example HVAC, and other features like defrosters, and much more detailed control. The RL (in 2006) also allowed you to tailor and store more features by driver (radio presets, HVAC settings, lighting controls, door lock programming and locking functions) whereas the CTS only saves seats, steering and mirrors.
The RL also had other features and tricks that were accessible that required several months for me to discover, again, back in 2006.
The CTS does have some features the RL didn't have like Rainsense wipers, remote start, and the cool trick doors of the coupe. Not to mention a HDD and better iPod integration, although I think later TLs and the RLX now offer.
The SH-AWD, although FWD based, was much more sophisticated than that in the CTS, but you really had to push it in corners to notice, harder than most people who buy that car do.
- 05-24-13 07:52 AM #9
Agreed with the voice control. Even to this day, you can't change the temperature with CUE amongst many other things that you can do in the Acuras. I keep saying to myself "maybe next year the Cadillacs will implement it". (wishful thinking I know)
- 05-24-13 09:37 AM #10Cadillac Owners Fanatic
- Automobile(s): 2010 CTS Premium AWD 3.6 DI (Sold)
- Join Date
- Sep 2009
- Chicago Area
Re: LED's and CTS
I live near Chicago and the Tribune did an article on the RLX - Their report - Basically it drives too much like an Accord to justify the price. Much better vehicles out there in the same segment.
- 05-24-13 06:24 PM #11Cadillac Owners Member
- Automobile(s): 2008 CTS
- Join Date
- May 2012
Re: LED's and CTS
As much as a don't want to say it, I think Benz and some other german counterparts have taken the cake with new lighting technology. Their systems called "Adaptive High Beam Assist" selectively shade certain LEDs to eliminate glare for oncoming cars while still maintaining maximum lighting for the driver. So instead of having just a "high" and "low" the system has 100's of different lighting patterns that maximize visibility for the driver.
As an engineer and previous Audi owner, I would have to slightly disagree with whoever was wary of Audi's LEDs. I'd be more concerned with the Kia's and Ford's that now use LED drls, since they are likely using lower quality parts. I've already seen one new 2012 Ford Taurus with one side of their DRL burnt out (they didn't have their turn signal on so there wasn't any reason for one side to not be illuminated).
- 05-25-13 01:39 PM #12
typo, thanks for the additional info. And who could forget Twilight Sentinel! (For some reason I love that term and that they still use it. Such a throwback to the '50s like the term HydraMatic. Feels like you're in "Grease.")
Agree that LED reliability wouldn't concern me as much in an Audi than in a Ford or Kia. The Ford LED strips used on cars like the Escape aren't even very bright and just LOOK fragile. And as far as the Korean brands have come on styling, they still need to prove themselves in all areas - including LED reliability - in my eyes. They remind me of Chrysler in the '90s, selling on style only to have the cars age quickly and fall apart. We'll see what those Optimas and Sonatas look like in five years...
By the way apparently the German brands are having some trouble getting those trick LED headlight systems approved by the DOT here in the U.S. Maybe they'll be able to lobby for changes in the laws ala Ford in the '80s when they got composite headlights approved.