2015 GMC Yukon: headlights failing or too dim

Filed Jun 11, 2025 · Brakes, Lights · 195,846 miles · LA

The contact owns a 2015 GMC Yukon. The contact stated that while depressing the brake pedal, added pressure was needed before the vehicle came to a stop. The contact stated that the vehicle hesitated or jumped before coming to a stop. Additionally, the contact stated the transmission was slipping. The contact stated that while driving at various speeds, the vehicle stalled before self-correcting. The contact also stated that while idling at a stop light and attempting to accelerate, the vehicle hesitated, but gradually accelerated as needed. The contact stated that the rear taillight intermittently failed to illuminate. The contact stated that the check engine warning light was illuminated. The transmission fluid was flushed; however, the failure recurred. The vehicle was taken to the dealer who diagnosed the vehicle and determined that the transmission was fractured, and the light bulbs needed to be replaced. The transmission was not repaired or replaced. The headlights were not replaced. The dealer confirmed that the brakes were included in the federal safety agency Campaign Number 19V645000 (Service Brake, Hydraulic) and the vehicle was repaired; however, the failure persisted. The vehicle was driven to the residence without further repairs. The contact stated that the vehicle had become inoperable. The manufacturer was not informed of the failure. The failure mileage was approximately 195,846.

Filed Aug 8, 2023 · Electrical, Engine · IL

Consuming a lot of oil, makes a funny clicking noise sometimes when accelerations, had lil pieces of metal in my oil, Transmisson problems, 1 front headlight and all rear tail lights went out, trailer brake system would come on and go off now it won’t stop dinging and makes a whole bunch of other lights come on (trailer brake system, park assist, low brake fluid, traction control, collision) dings some much I can’t drive it. Called a gm shop near me and they told me it would cost a whole bunch for each diagnosis for every warning that came on.

Filed Nov 24, 2022 · Lights · AL

Numerous reports of taillights and headlights not working properly and no recall like it should be

Filed Jun 9, 2020 · Lights · NY

Manufacture defective , front driver side headlight assembly has high condensation which continues to get worse. It has caused the light to malfunction and now will not work. I was told by a mechanic that the whole headlight assembly has to be replaced because if not the bulbs will continue to burn out due to the condensation.

Filed Apr 24, 2020 · Lights · IA

The passenger tail light was only working intermittently so I had the whole thing replaced for $750. Now my driver side one is only working intermittently. Also my passenger headlight started accumulating moisture and now the whole LED strip doesn't work. There has to be an issue with the company making them!

Filed Oct 3, 2019 · 27,000 miles · IL

After no apparent impacts or external damage, three different lights have failed or become endangered by wetness. First a tail light assembly had to be replaced for $827, then the 3rd brake light for $280, and now there is wetness visible inside a headlight (costing something like $900 to replace). *bf *jb *bf

Filed May 16, 2019 · Brakes, Electrical · 90,000 miles · NY

The most disturbing concern is the fact that I lost my brakes as a result of a known problem that gm has even recognized relating to a faulty vacuum booster pump. I incurred a $500 repair bill despite gm's acknowledgement of the problem and willingness to pay for cars with less than 70000 miles. Unfortunately, mine was over the allowable mileage. Additionally, I am looking at a $1500 repair bill for a sealed headlight replacement and another $300 bill for a side detection system ( lane departure warning). Gm made a poor car that is unsafe and is not properly addressing the problem.

Filed May 10, 2019 · Brakes, Electrical · 75,000 miles · MS

Tail light lighting strip spontaneously malfunctioned and stopped working. Vehicle has no light and no brake lighting which could have resulted in auto accident. Within a month the headlight has burned out resulting in a blinker malfunction. Vehicle was on highway when both lights malfunctioned

Filed Mar 26, 2019 · Electrical · VA

Headlights and brake lights quit working

Filed Feb 18, 2019 · Electrical, Lights · GA

All LED lights have went out on right side, as well as break lights. This is a know issue to gmc, and yet they will not correct it. My quote to have it fixed was 2493.00 from local dealership. That is crazy. Led lights should last a whole lot longer than this. Also condensation is in the front headlight with no holes or cracks. If this happens with house windows, they are replaced by the manufacturer. There are so many complaints, I will also be contacting the better business bureau. Gmc knows there is a problem with these models.

Filed Jan 17, 2019 · Electrical, Lights · 45,000 miles · CA

My taillight stoped working. When I turn my headlights on it wont turn on or when I apply my brakes. I searched the internet(facebook and fourm sites) and found thousand and thousand of people having the same issues. The brake light/running light is not a light bulb like most cars that you can just replace when it goes out. Its LED.so you have to replace the whole entire light assembly and it was over $800. Led are supposed to have a long life before they go out.... This is only a 2015 I mean come on. So I had to drive in the dark and during this rain storm on freeway and regular streets with no brake or running lights which I s extremely dangerous. This is a family vehicle I drive my kids in this car. This cant keep happening. I also read that multiple people said once they bought a new assembly it went out again and stopped working down the road. This is insane.

Filed Jan 5, 2019 · Lights · SC

I have now had my 3rd LED light go out on my yukon xl 2015 the first was the passenger head light then the passenger tail light and now the driver tail light