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Daytime running lights dim/flickering

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2016 CX-5 w/ Tech/Activsense
I disagree. MNAO should have some standard to compensate those 2016 CX-5 owners who unfortunately have major design flaw on their LED headlights. For example, earlier last year a friend of mine his DRLs started flickering at the 37th month and 20K miles. MNAO was not willing to cover the most and he had to pay $400 for both. He refused as there're many at the time got free replacement without warranty, some even had 60K+ miles.
My guess is that it started out as a trickle and then as we are approaching the 4 year mark, it started to become a flood.
 
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2020 CX-5
Does anyone what design/manufacturing flaw causes these lights to fail prematurely? I'm sure the Mazda engineers know, but I've never read the explanation in this site. Mine are to be replaced Monday and I'm going to ask the service rep if she has been instructed to return the bad units to Mazda or just toss them in the trash like any other broken part.

Though I haven't seen it too often, I have seen other makes of cars with either partial or full failure of the LED running lights. It seems LED lighting is likely to become pretty much universal as time passes and perhaps manufacturers will want to reconsider making these sealed units. I don't know how much additional cost would be involved in designing these units to allow replacement of defective parts, but even if failure is rare, most owners are going to howl when faced with a $1000 bill to replace a headlight. The last halogen headlight bulb I replaced cost me less than $10 to buy.
 

shadonoz

SkyActiv Member
Contributor
:
State of Jefferson
:
2017 CX-5 GT AWD+
Does anyone what design/manufacturing flaw causes these lights to fail prematurely? I'm sure the Mazda engineers know, but I've never read the explanation in this site. Mine are to be replaced Monday and I'm going to ask the service rep if she has been instructed to return the bad units to Mazda or just toss them in the trash like any other broken part.

Though I haven't seen it too often, I have seen other makes of cars with either partial or full failure of the LED running lights. It seems LED lighting is likely to become pretty much universal as time passes and perhaps manufacturers will want to reconsider making these sealed units. I don't know how much additional cost would be involved in designing these units to allow replacement of defective parts, but even if failure is rare, most owners are going to howl when faced with a $1000 bill to replace a headlight. The last halogen headlight bulb I replaced cost me less than $10 to buy.
Heat is a likely suspect.

Just think how many more maintenance contracts they're selling now with $1000 headlights and $3800 circuit boards!
 
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2014 QX70 AWD
Ive seen 5 or 6 different CX5s the past few weeks with one or two failing or dead led drls. Crazy.

There really should be a consistent plan to help owners out. Everyone on here is coming back with different estimates/costs.
 

yrwei52

2016 Mazda CX-5 GT AWD w/Tech Pkg. Plano, TX
Contributor
:
Plano, Texas, USA
Does anyone what design/manufacturing flaw causes these lights to fail prematurely? I'm sure the Mazda engineers know, but I've never read the explanation in this site. Mine are to be replaced Monday and I'm going to ask the service rep if she has been instructed to return the bad units to Mazda or just toss them in the trash like any other broken part.

Though I haven't seen it too often, I have seen other makes of cars with either partial or full failure of the LED running lights. It seems LED lighting is likely to become pretty much universal as time passes and perhaps manufacturers will want to reconsider making these sealed units. I don't know how much additional cost would be involved in designing these units to allow replacement of defective parts, but even if failure is rare, most owners are going to howl when faced with a $1000 bill to replace a headlight. The last halogen headlight bulb I replaced cost me less than $10 to buy.
During my replacement under warranty, which was March last year, Mazda NAO did ask the whole unit back as I tried to get failed LED headlights to disassemble the unit and find out what happened. In the mean time Mazda and Stanley should have done the investigation and revised the LED DRL design after many tries based on failed units collected. The latest J version seemed to have fixed the problem.

From the look of J version, Stanley apparently reduced the LED light output, and used different LED setup with more common and cheaper dot matrix LED arrangement replacing original fiber optic style on DRL. IMO reducing the power, hence less heat, is the key for the fix. And thiss definitely a major design flaw to begin with.
 
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2016 CX-5 GT Tech
Had my DRL on my driver's side go out last week, dealer quoted ~$1400 to get it replaced and I asked about Mazda Canada coverage, they've since come back and said Mazda Canada will cover all of it this time even though its not covered by warranty. Bought the car from dealer with CPO powertrain warranty about 16 months ago and have done all my maintenance items with Mazda since, so pretty happy with the outcome, just hope the Passenger side lasts, car only has 35K kms (22K miles) on it so far.
 

7eregrine

The man, the myth, the legend
:
Land of Cleve
:
2016.5 CX5
I don't think it's heat at all. These lights run very cool to begin with. Just a bad design in a rough environment.
I still have yet to see one CX5 with a bad DRL.
 
:
2020 CX-5
I don't think heat from the LED's themselves is the suspected cause, but excess heat in the electrical circuit that drives the LED's. Most LED's run on something close to 5V, which means they have to have an electrical circuit to provide the LED's with a reduced (from 12V) and stable power supply. The components needed to accomplish this voltage reduction can get quite hot in operation and without adequate ventilation or heat sinking, this heat can damage circuit components.
 
+1 failure, driver side flickering and dim... ~55k miles. No warranty... I started by calling corporate and they said I need an official diagnosis before then can do anything or talk about what*s wrong... hoping I don*t get slapped with a diagnostic fee and a fix fee. No way I*m paying for this fix especially with all of the help I see others have gotten. My Mazda dealer always treats customers like ****, so not too happy to have to try to work with them today.

How is this not a recall or service bulletin? If you look at 2015 registered complaints you see under 100, while the 2016 has 100 on the lights alone!

That*s more recorded issues for one problem than all issues combined on the prior year model!

Outrageous!
 
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13' CX-5 and 16' Mazda6 both Touring w/Tech/Bose
Weird that the 6 doesn*t experience this problem because these led drls were pretty much identical between models.
The CX-5s likely got a bad batch from Stanley. My 2016 Mazda6's DRLs are still going strong. Then again I still haven't seen bad ones in CX-5s in my region. Then again I live in the desert.
 
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2020 CX-5
U.S. law does not require DRL's so a failure of them can viewed as a mere cosmetics issue, not a safety one. I think Canadian law does requires DRL's, so it maybe different up there. The service rep at my local dealer said she'd seen quite a few failed DRL's, but I was the first person who had contacted Mazda corporate to get a deal on replacing them ($100 each for me on a CX-5 with 75,000 miles).


How is this not a recall or service bulletin? If you look at 2015 registered complaints you see under 100, while the 2016 has 100 on the lights alone!
 
2016.5 Canada

Had my lights flickering about a year back and now they're dead on both sides. Glad I found this thread, so many people with drl trouble. I am curious if anyone in Canada recently had luck with Mazda covering repairs? Mine is 2016.5 out-of-warranty, high mileage ( but I have MAP extended warranty which doesn't cover LEDs ☹).

The dealer said something charge like $230 just for diagnosis and then like $1700 ( or something equally ridiculous) for replacing.

I am planning to call Mazda Canada Customer Service but want to be armed with the latest info.
 

yrwei52

2016 Mazda CX-5 GT AWD w/Tech Pkg. Plano, TX
Contributor
:
Plano, Texas, USA
2016.5 Canada

Had my lights flickering about a year back and now they're dead on both sides. Glad I found this thread, so many people with drl trouble. I am curious if anyone in Canada recently had luck with Mazda covering repairs? Mine is 2016.5 out-of-warranty, high mileage ( but I have MAP extended warranty which doesn't cover LEDs ☹).

The dealer said something charge like $230 just for diagnosis and then like $1700 ( or something equally ridiculous) for replacing.

I am planning to call Mazda Canada Customer Service but want to be armed with the latest info.
Thiss the first report of a 2016.5 MY CX-5 failing on LED DRLs! Would you please to check the physical version of your failed LED headlight assembly on a part sticker of the headlight back housing?

See the post here to get more info. And using a cell phone to get a picture of the sticker is the best way to do.
 

yrwei52

2016 Mazda CX-5 GT AWD w/Tech Pkg. Plano, TX
Contributor
:
Plano, Texas, USA
Sure ,I'll do that tomorrow! Hmmm, i think it's LED DRL's, I mean it's the same issue as everyone else here, right? DRL's flickering and failing.
Yeah the Signature accent strip LED DRL is a part of LED headlight assembly on 2016 / 2016.5 CX-5. Any parts of LED headlight unit failed, the entire headlight assembly needs to be replaced.
 
One of my LED DRL's quit working on my 2016 after about 3.5 years of ownership. By contacting Mazda customer service, I ended up getting it replaced for free. It's a little disappointing that the new one isn't as bright as the original so they don't match, but I'm really glad that Mazda fixed it even though it was no longer under warranty.
 
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