This service bulletin provides information on Exterior Lamp Condensation and Water Leak Information and Replacement Guidelines.
full bulletin at NHTSA ↗2023 Cadillac Lyriq lighting problems
moderate Owners of the 2023 Cadillac Lyriq have filed 9 NHTSA complaints about the lighting at roughly $250 to repair (U.S. federal records, as of August 2026). Source: NHTSA Office of Defects Investigation. See lighting across all vehicles →
| Model year | lighting complaints |
|---|---|
| 2023 Lyriq (this page) | 9 |
| 2024 Lyriq | 17 |
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering lighting on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
full bulletin at NHTSA ↗Service Update: Certain vehicles may have a condition in which the headlampsâ aim may drift high or low during a drive compared to the initial aim at key-on. Dealers are to reprogram the Headlamp Control Module.
full bulletin at NHTSA ↗This informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage.
full bulletin at NHTSA ↗This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 8 most recent
The gauge cluster/infotainment screen dims automatically when the light sensor on the dash senses the environment has gotten darker. The problem is that this happens extremely early at dusk/dark hours when it's still fairly bright outside, and the brightness of the screen is too dim to see things clearly. Also, once this automatic dimming happens, there is no way to turn the brightness back up.…
During dusk and dawn conditions, the vehicle dims the dashboard lighting to the point that everything is very difficult to see. They are diming the displays when the exterior lighting conditions are still too bright for the very dim display. I have owned many GM vehicles with this type of automatic diming and this is the ONLY vehicle that has this problem. There is NO user fix available. This is…
Headlights droop over time driven which can severely limit forward vision. The limited vision forward at highway speeds certainly reduces safety. This is an intermittent problem that I can find no real pattern except that the longer you drive at night, the more likely the problem will surface. The problem has been confirmed and headlights replaced by at least three dealerships I first noticed…
Low beam headlights have very poor throw which degrades while driving. After driving the vehicle for 30 minutes, both left and right headlights point downward and do not throw light down the road. Cutoff is steep, with light only going about one car length. The fault is variable and somewhat random, with sometimes just one headlight drooping. The car must be driven for this to happen - does…
The aim of the headlight beams droops over time to dangerous low level where the headlings barely light beyond 30 feet. The highlights would re-level and re-adjust the aim at restart, but they would start drooping to dangerous low level within 10 mins of driving.
When the vehicle first starts, the headlights go through some sort of leveling routine and the light spread seems to illuminate a reasonable distance ahead of the vehicle. However, over as short as a few minutes of driving, the headlight seems to droop significantly and can result in only a very short section of road being illuminated ahead of the vehicle. This makes it very dangerous to drive…
Low beam headlights work appropriately for 5 or so minutes before "drooping" or "sagging" so that they only illuminate one car length or so in front of the vehicle. Upon shutting off and restarting the vehicle, the lights return to correct illumination. However, they somehow droop again and within 5-10 minutes, it is not safe to drive the vehicle on low-beam headlights. It is the equivalent of…
While transitioning to day to night, the instrument panel dims prematurely making the content very hard to see. This includes all indicators such as speed, turn signals, and other gauges and possible fault indications. This happens prior to dusk, when there is still plenty of daylight remaining. The headlights come on (this is fine), but the display dims to full night mode at the same time…
Common questions
How serious is the lighting problem on the 2023 Cadillac Lyriq?
It's a documented issue but not catastrophic. 9 complaints have been filed. Repairs average $250 and most owners catch it before it causes a breakdown.
At what mileage does the lighting typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $250 for lighting repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to lighting?
No active recalls currently cover lighting issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.