Which parts fail
Components named in complaints (headlights, tail lights, turn signals, interior lights).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2015 Chevrolet Tahoe owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2015 Chevrolet Tahoe. The contact stated while driving at undisclosed speeds, the contact noticed that while activating the turn signals, the lights were blinking continuously with an unknown warning light illuminated. The contact parked the vehicle noticed a lot of moisture and condensation in the lower half of the driver's and passenger's side headlights and turn signals. The contact took the vehicle to an independent mechanic who inspected the vehicle and attempted to replace the bulbs for the front turn signals lamps however, the failure reoccurred. The contact took the vehicle back to the independent mechanic to be diagnosed. The contact was informed that the headlight assemblies needed to be replaced. Additionally, there was rust in the plug for the turn signals due to condensation. The vehicle was repaired. The manufacturer was made aware of the failure. …
The 2015 Chevrolet Tahoe seems to be known for thermostat failure. My thermostat gauge while driving would drop from 210 to 160 and stay pinned on 160 and the fans would turn on. I was told by an auto body shop that it seemed to be electric issues. I also had a wire under the car catch fire and the auto body shop said that is why my standing lights would not work in the rear but my brake lights would work. It's very dangerous that the electrical failure caused a fire to start under the car. Then, I ran into another issue just this week where the vehicle has a cracked AC condenser and is slowly losing coolant. It's a manufacturing issue because all of them seem to crack and we're not made with a proper seal. Another electrical issue I have is when I turn the wheel all the way to the left or right, even when the key is in and engine is on, the engine will shut off. …
On several occasions at various speeds, both driving straight and turning, my 2015 Chevy Tahoe has turned off. During higher speeds the SUV will turn back on, instantly, by itself but during lower speeds and turning the car has to be manual turned back on by switching into neutral, pressing the break, and pushing the start button. The most recent time this has happened, it was dark outside and I was turning. I lost everything including my head and tail lights so it was hard for oncoming traffic to see me. I also almost hit someone coming in the other lane because I was unable to fully turn due to the loss of power steering. After this happens, I get many warning/action required messages across the dashboard but no check engine light or code have come up. …
I have not had a wreck but the fact that when you press the brake pedal the dome lights blink and when you turn on the left turn signal, the dome lights blink. If you hold down the brake like if you're at a traffic light the dome lights blink continuously until you let off the brake. Now, during the day, that's no big problem but at night it poses a serious safety risk. A bright light in your eyes while driving is blinding and a sudden bright light in the pitch black dark could lead to an accident. I called the dealer to ask about it and was told yeah, they knew about it and it would cost me like $550 to repair even though it was a defect that they readily acknowledge.
Second Inquiry on this problem, a detailed description was sent previously and no response was ever received. 2015 Chevy Tahoe in short, interior LED lights flash when ever the brake is applied. Interior LED lights flash when left turn signal is activated. Dealer stated that a Service Bulletin was created for this issue as an obvious safety issue at night. Electrical tape over the second seat LED's Dealer wanted at the time $180.00 to remedy the problem. (Documented) Dealer on next recall visit, Customer Service stated that they were unaware of such an issue, and also that this was the first that he had heard of it. Internet is well aware of the electrical issue.
Dome lights keep flickering. Not specific to any light. All of them flash sporadically. Looks like a camera flash at night. It is beyond distracting at night and the dealership could not find what is causing it to happen. It is making driving at night dangerous because it is distracting because it can sometimes flash non stop like a strobe light.
The electrical software isn't functioning properly. The radio, OnStar, the door/seat belt chimes don't work. None of the electrical works in the vehicle. I was driving and when I pressed on the brake and turning, the dome lights start to flicker making it difficult to see other cars at night. The back doors don't always lock when locking them.
My Tahoe showed stabilitrak issues when I first bought it a year ago. I received a recall notice and took it into the nearest dealer. It was OK for awhile but the same problem started again a month ago. The truck turns on and off for about 1 second as I'm pulling into a parking space. However, now I've had issues when I try to lock it with the fob; it does nothing. I have been stranded at a business because it won't turn back on and I have to wait awhile and try to crank it. It comes back on but this has happened to me more than 3 times. Now, I was driving to work and as I pulled into my work garage, everything turned off completely and this time nothing came back on. I had to quickly turn the ignition key to the off position, thankfully I had my foot on the brake and I had to turn it back on again. …
Vehicle would not start,needed to jump start. Once running ,climate controls and fan volume would not respond. Heat at 90,fan on full.engine light flashing on off.dash lights suddenly dimmed to low.taken to dealer,had vehicle for 4 days.dealer replaced battery.one week after battery was replaced,experienced the interior cabin lights would flash when brake pedal was applied.instrument panel lights suddenly go from bright to dim.at night and day when turn signal activated ,the interior cabin lights flash on as well as when driver applied brake.very distracting and dangerous in particular when operating at night.notified dealer,returned vehicle for full diagnostics,had it for one week,no issues found. …
I purchased my vehicle'2015 Chevy Tahoe lt on July 1, 2019 I have had intermittent glitches in the electrical system. The headlights, dash lights, and mylink touchscreen will completely black out and then come back on. However, when this happens the steering wheel locks up for a split second. This is happening while driving, at speeds over 50mph, during the night and day. It was suspected to be the alternator or battery, after replacing the alternator there was no change in the behavior. It continues to happen. The service stabilitrack warning will also pop up after the power is restored. This issue is very dangerous and after reading dozens of forums it's clear this is not an isolated incident. This has happened over and over at least 20 times since July 2019, randomly and completely unexpectedly.
Headlight complaints in other Tahoe years
Frequently asked questions
How common are headlight problems on the 2015 Chevrolet Tahoe?
NHTSA has 56 complaints about the lights of the 2015 Chevrolet Tahoe, 8% of the model year's 659 complaints. The component named most often is headlights (1 mentions).
Is there a recall for 2015 Chevrolet Tahoe headlight problems?
No. NHTSA lists no lights recall for the 2015 Chevrolet Tahoe, though it has 14 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2015 Chevrolet Tahoe headlight problems start?
Half of the complaints with a recorded mileage happened before about 51,000 miles, and 24% before 25,000 miles.
Is it dangerous?
Owners linked 2 crashes, 0 fires and 1 injury to lights problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.