Cadillac Lyriq headlights problems

Filed Jun 9, 2026 · Electrical, Steering · NY

Stopped at the West Bound Thruway Seneca service area. After returning to the vehicle, multiple error messages were displayed on screen. "Have Power Steering Serviced, Service Stabilitrak, Service Headlamps, AWD Tempoarily Unavailable" Steering was the main issue. It was almost impossible to turn and steer. It was fortunate that it was after a stop and not while driving. The vehicle was towed to the dealer but it has yet to be determined why the steering failed.

Filed Jan 30, 2026 · Lights · CA

Driver Side Headlight erratic flicker while parked. Low beam unexpectedly turns on and turns off. Causes eyeball light sensitivity upon approach and could cause epileptic seizures for some. Problem has been replicated by dealer with video evidence provided by me. First attempt to fix was to provide software updates. That did not remedy. The second attempt was a full and complete inspection of all wires and modules which were in tact followed by a full replacement of the headlight assembly. This also did not remedy. The third attempt did not perform any action and to mark the concern as "operating as intended." No warning lamps or other indications except being in front of the vehicle while it occurs.

Filed Nov 12, 2025 · Brakes, Driver assistance · FL

**2026 - Cadillac Lyriq One-Pedal Driving and Brake Defect** On November 4, 2026, at approximately 9:30 AM, I was driving my 2026 Cadillac Lyriq using the one-pedal driving feature while going below 20 miles per hour. Suddenly, the vehicle accelerated unexpectedly. I lifted my foot off the accelerator, but the car did not slow down despite the one-pedal driving being enabled. Within a few seconds, various warning lights appeared on the dashboard, including messages such as "One-Pedal Driving Unavailable," "Brake Assist Off," "Auto-Hold Unavailable," and "Steering Assist is Reduced - Drive with Care." Additionally, warnings for "Service Headlamps," as well as red or yellow indicators for "Parking Setting," "ABS," and "Ready," were activated. I made several attempts to apply the brakes, but they did not respond. I even tried to engage the parking brake, which also failed. Fortunately, I was lucky enough not to hit anyone or run over any curbs during this incident. The 2026 Lyriq that I purchased has fewer than 500 miles on it and has been at the dealer service center for over two weeks. This is a significant safety concern, and I believe Cadillac should take immediate action to address this issue.

Filed Mar 24, 2025 · Acceleration, Brakes · CA

- Software failure resulted in loss of steering control, speed control, and brakes became unavailable. I was on highway car was at 65 mph and then I got a bunch of error messages mentioned below- 1) Steering assist not available 2) AWD is disabled 3) Headlamps not available 4)Service brake assist And then I was not able to brake the car, and steering became highly unresponsive. I took my foot of gas and let the car roll for 1 mile before stopping safely on shoulder, from where I called Cadillac for support (they towed the car back), since error didn't resolve after stopping or rebooting the car. I took screenshot of these errors after stopping and attached them in this email. - Yes it put safety of me, my passenger, and other vehicles at risk, loss speed and steering control you have cause me to hit any other car. - Yes problem is reported to manufacturer, car is in service. - Vehicle is with Service, since no one got hurt, we didn't involve police. - No prior message or warnings we recieved, all errors come as soon as the issues appear.

Filed Jan 28, 2025 · Electrical · CT

When driving, the infotainment screen glitched. This also affected the main instrument cluster containing information like speed, and inhibited any ability to control certain functions like the headlights. While the infotainment screen was scrambled, this was not a perceived safety issue [except that cameras could not be seen] However, the main instrument cluster was concerning. Correct speed, gear position, blinkers, etc were not shown or delayed. [e.g. when going approx 30 mph, the cluster stated approx 15 mph]

Filed Dec 13, 2024 · Lights, Visibility · GA

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. This feature also CANNOT be disabled in the settings anywhere. This results in a safety issue where the screen is not sufficiently visible at times when the auto dimming (which is also tied to the automatic headlights) kicks in for the screen.

Filed Aug 1, 2024 · Lights · SC

We encountered consistent loss of or erratic headlight operation. The behavior was that lighting would simply fail on one or both sides of the car, often along two-lane roads with curves in the road where it is critical to judge distance to oncoming traffic. Other times the lights would dim and wash out the ability to clearly see the road ahead. The dealer has replaced the headlights three times already. An associated lighting module was also replaced more than once. Note that this issue is still present so we are unable to use the vehicle now after dark.

Filed Jul 1, 2024 · Lights · NY

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 also. Although the instrument display night illumination level is adjustable with the dimmer switch, even at maximum setting the instrument panel cannot be well seen. Once the sun fully sets, the display visibility for night viewing is fine. The same issue occurs at the night to day transition. The display stays dim much too long into dawn, again presenting visibility issue of the controls and gauges during this time. This problem is not isolated to just my particular vehicle. When the vehicle was in the shop for various repairs, loaner Lyriq's provided exhibit the same issue. Both 2023 and 2024 model year, over various trims.

Filed Mar 11, 2024 · Lights · NY

The Lyriq, as well as all current GM vehicles, use an icon on their instrument panel for indicating headlights are on that is incorrect. They use the symbol for parking lights rather than the symbol for low beam headlights on their instrument panel display. This is especially confusing because their own digital menu to turn on lights correctly shows the low beam headlights symbol for headlights, and the parking lights symbol for parking lights. However, turning on low beam headlights shows a parking lights indicator in the dashboard, and turning on the parking lights shows no indicator in the dashboard. It's my belief that, to help ensure no driver misunderstands what the symbols are indicating, that GM should have all vehicles properly use the low beam symbol for a dashboard indicator to show headlights, just like other vehicles use, rather than the parking lights indicator which is incorrect (both inconsistent with US convention, (as well as inconsistent with their own menu in the Lyriq specifically) to turn these lights on.

Filed Nov 4, 2023 · Lights · FL

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 the problem about 6 weeks after purchase because we do not drive much at night. [XXX] Also of interest is a surprising number of headlight assemblies for the Cadillac Lyriq are for sale on Ebay even though only a few thousand cars have been delivered. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)