2015 Cadillac SRX · symptom sheet
Tail lights or brake lights fail
- 47owner reports
- 50,000median miles
- $1,600median quote
- 0involved a crash
Newest report Sep 14, 2025 · checked Oct 2, 2026
302 of the 442 complaints on this car are about the exterior lighting. 47 of those describe tail light failure. Only headlights is reported more often on this car.
Tick what matches of 47 reports
Tail light failure on other SRX years
No other SRX model year has enough reports of tail light failure for a sheet of its own. See every SRX year.
What this problem usually is
These owners find a tail light or brake light dead, and then learn the fix is a whole lamp assembly rather than a bulb. Water inside the lens comes up again and again.
What got replaced
Owners who name the part that was replaced mention the LED module (23 reports), the tail light assembly (20 reports) and the bulb (19 reports).
Recalls and investigations
No recall on the exterior lighting covers the 2015 model year as of Oct 2, 2026.
What owners paid
32 of the 47 reports quote a price. Each dot is one quote. The middle half runs $800 to $1,800.
When it happens
The middle half of failures fell between 41,089 and 65,000 miles, from the 28 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 3 service bulletins or notices for the 2015 Cadillac SRX that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
This service bulletin provides information on Exterior Lamp Condensation and Water Leak Information and Replacement Guidelines.
This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and Replacement Guidelines.
This engineering information bulletin is requesting information from dealers on a customer concern of brake lights stay illuminated without brake pedal being pressed.
What owners wrote
“The headlights are ineffective. It is like driving without headlights at night. Had bulbs replaced but did not improve lighting. Moisture on inside of windshield. On cold evenings the inside of the windshield is frozen. March 21, 2024 the tailgate will not open. It appears this is a common complaint with this vehicle caused by drainage from the sunroof leaking onto the module that powers the tailgate.”
Filed Mar 22, 2024
“Dim headlamps that are non fixable by installing new lights.. headlamp assemblies in the 2016 Cadillac SRX suffer from defective seals that allow moisture to accumulate and condense, therefore damaging and dimming the headlight bulbs.”
Filed Nov 14, 2022
“The headlights incur condensation inside the headlight body, which makes the light from the headlights very dim. At night, this creates a very serious safety concern. 1. Other cars are not able to see you at night. 2. The driver is unable to see the road or other objects at night. There apparently was a lawsuit in 2 states on this safety concern, which they won. Please recall this, before someone else is killed.”
Filed Feb 10, 2022
Should you keep driving it?
This page can't tell you that. 0 of 47 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Taking it to a shop? How to describe this problem so it gets found
Other problems on this car
- Headlights too dim or fail 286 reports
- Suspension noise, struts or alignment 29 reports
- Infotainment, screen or backup camera fails 28 reports