Volvo XC90 check engine light comes on

Filed Oct 16, 2026 · Electrical · PA

The check engine light on our Volvo XC90 Plug-in Hybrid came on stating "Hybrid System Failure Service Required". The vehicle would no longer accept a charge. A service appointment was made and the technician found that there was a fault with cell module A. A case was started but we were told the part was on backorder.

Filed Oct 1, 2026 · Brakes · CA

On Wednesday 9/23, I was driving on a residential road and came to a stop sign. When I tried to stop at the intersection my brake pedal seized up and the car would not stop. The check engine light came on. I had to shift the car into park in order to stop the vehicle. I towed it to the dealer and found out today that the brake booster failed.

Filed Sep 23, 2026 · Electrical, Fuel system · PA

Vehicle has exhibited lagging and stalling while driving in "Pure" (electric-only) mode since approximately April 2026, at approximately 85,000 miles, accompanied by an illuminated check engine light. This has occurred repeatedly at red lights, intersections, stop signs, and in stop-and-go traffic, creating a risk of sudden loss of propulsion in live traffic situations, including at intersections where an unexpected stall could result in a collision. The dealership (Volvo Cars of Fort Washington) has diagnosed this as originating from multiple hybrid drivetrain components over several repair visits: the High Voltage Coolant Heater (replaced per a referenced Volvo Technical Service Bulletin), the Inverter Electric Rear Axle Drive Module (IEM) — diagnostic data showed one internal transistor (phase W) reaching 135°C, a severe outlier compared to the other two phases reading approximately 25°C — the A/C refrigerant shutoff valve, and most recently the Electronic Rear Axle Drive (ERAD) transmission, where diagnostic monitoring showed the ERAD clutch slipping during test drives. Volvo's own internal case management system has classified this case as a "Repeat Repair." Despite multiple repair attempts, the underlying drivability defect (lagging/stalling) has recurred each time, including almost immediately after the vehicle was returned following the initial repair, with minimal intervening use. This pattern indicates a persistent, unresolved defect in the vehicle's hybrid drive system that presents a safety risk due to unpredictable loss of power while driving.

Filed Sep 21, 2026 · Electrical · 60,000 miles · WA

The contact owns a 2021 Volvo XC90. The contact stated that while driving at various speeds and depressing the accelerator or the brake pedal, the vehicle hesitated with the check engine warning light illuminated. The dealer was contacted. The vehicle was taken to the dealer to be diagnosed, and it was determined that the electric rear axle drive system had failed and needed to be replaced. The contact stated that the failure occurred each time the vehicle was driven. The manufacturer was notified of the failure and informed the contact to continue driving the vehicle because the vehicle was safe to drive. The failure mileage was approximately 60,000.

Filed Jun 4, 2026 · Engine, Lights · NC

I am submitting this complaint regarding serious safety concerns with my Volvo vehicle that may affect the safety of my family, especially young children. 1. Second-Row Center Seat Integrated Booster Seat Belt Failure The integrated booster seat belt in the second-row center seat is not functioning properly. The seat belt mechanism appears defective and does not secure the child as intended. This presents a significant safety risk. In the event of sudden braking or an emergency stop, a child could be thrown forward due to the seat belt’s failure to restrain the occupant correctly. This defect creates a serious risk of injury and should be investigated immediately. 2. Recurring Check Engine Light Following Recall Repair / Hybrid Battery Concerns Following a recent Volvo recall repair and/or work related to the hybrid battery system, the vehicle began displaying a recurring check engine warning light. The issue was reported to Weaver Brothers Volvo in Raleigh, North Carolina. The dealership performed repairs or adjustments, and the warning light temporarily disappeared. However, the same issue has returned, raising concerns that the underlying problem was not properly diagnosed or corrected. Given the vehicle’s purchase price of approximately $75,000, I am concerned about the reliability and safety of the vehicle, particularly if the warning light is related to the hybrid battery system, emissions system, or another critical component. Headlight Issue: Headlights provide inadequate illumination during nighttime and rainy conditions, reducing visibility and creating a potential safety hazard. Left Speaker Issue: The left-side speaker intermittently produces static and distorted audio during music playback and hands-free phone calls, causing distraction and affecting communication or music while driving Thank you for your attention to this matte

Filed Jan 27, 2026 · Engine, Fuel system · GA

In early December (2025), I experienced Hybrid System Failure, with the vehicle showing this fault in the dashboard and the check engine light coming on. I took it to the dealership, as the hybrid system is still within warranty, and they diagnosed a failed hybrid battery module. They said I could continue to drive the care in combustion-only mode and would order the module. Having heard nothing, I checked in early January and was told the module would not be available until May or June of 2026. I escalated to Volvo corporate. They opened a case and keep promising to have a manager reach out to update me, but they have failed to follow-through for almost a month. I am now faced with the prospect of operating an impaired vehicle that can't pass an emissions test (and which is under warranty) for more than half a year.

Filed Sep 22, 2025 · Electrical, Fuel system · NC

My car is a 2022 Volvo hybrid T8, 6-passenger XC90. I purchased the SUV in August of 2023 as a "certified pre-owned" vehicle with only 17,923 miles on it at the time of purchase. This SUV has been fine until within the last two to three months (July-Sept. 2025). Now, in Sept. of 2025, my SUV only has 30,795 miles and we have had it serviced regularly, as required, and taken care of it as responsible vehicle owners. Beginning around June or July of 2025, I began seeing the "check engine" light, so I called the dealership where I purchased the vehicle and took it in for servicing. After a day, they said it was fixed and that it was a blown fuse or two, and it was good to go. Not even 3 weeks to a month later, the "check engine" light came on again. I called and took it back to the dealership. Same story, after less than a day they called me back after fixing something else (don't remember off the top of my head what they said it was, but it was allegedly minor). Now, about 3 days ago, Sept. of 2025, I began seeing the "check engine" light again, so for the 3rd time in less than 3 months I arranged for it to be serviced by the dealership again on 9/30. A day later, another "Propulsion System/maintenance required!!!" light came on as well, so I called to get servicing sooner because obviously the message is scary. I was told to bring it in, they would "work me in" but had no loaners I could use to get to and from work. So, at that point, I got my husband involved and now no one from the dealership is returning either of our calls, AND I'm being told there is no recall on my car, even though a simple google search reveals there is a recall on my same make/model/year SUV. I'm getting the same messages people got about the recall, so no clue why my vehicle isn't considered as part of the recall when I am having the SAME issues as the recalled vehicles are having. I am beyond frustrated and ready to dump this SUV if they are unable to properly repair it!!!!!

Filed Mar 3, 2025 · Body, Electrical · 147,000 miles · TN

The contact owns a 2017 Volvo XC90. The contact stated that after a rainstorm, there was water leaking from the rearview mirror, which leaked into the vehicle, causing the electrical system to fail. There was an abnormal sound of water swishing around inside the vehicle. The on-call warning and check engine warning lights were illuminated. The vehicle was taken to the local dealer, where it was diagnosed with a cracked sunroof cassette leak. The vehicle was not repaired. The manufacturer was contacted and opened a case. The failure mileage was approximately 147,000.

Filed Jul 8, 2024 · Acceleration, Fuel system · NC

Third instance of reduced engine performance warning system taking over the car, which results in the "turtle mode" coming on and throttling vehicle speeds. The car does not respond to gas except at lower speeds. Then the Check Engine light also came on.

Filed Jun 4, 2024 · Engine, Fuel system · AZ

The vehicle exhibits excessive oil consumption due to defective oil control rings, as highlighted by Quality Bulletin P10186. Additionally, the sunroof leaks, as noted in Technical Journal 31272 and TJ 35503.3.0, and there are further issues with the windshield wiper/turn signal system, the parking brake system, and the steering wheel module. Yes, the vehicle is available for inspection upon request. The excessive oil consumption and related engine issues can lead to engine damage and potential failure while driving, posing a serious safety risk. The sunroof leakage could impair visibility and cause electrical failures. The persistent dashboard warning messages and system malfunctions further distract and endanger the driver and others on the road. Yes, the problem has been reproduced and confirmed by various dealers and independent service centers, as indicated by numerous customer cases, court rulings, and a class-action lawsuit. Yes, the vehicle has been inspected by the manufacturer and documented in various technical journals and bulletins. There is no specific mention of inspection by police or insurance representatives. Yes, there were several warning lamps and messages, including the low oil light, Check Engine light, and messages related to the parking brake and windshield wiper/turn signal system. Symptoms such as slow acceleration, loss of power, higher tailpipe emissions, and a foul odor from the exhaust were also observed. These issues appeared shortly after acquiring the vehicle and persisted despite multiple repair attempts. The incident is primarily caused by engineering flaws and faulty materials, particularly the defective oil control rings leading to excessive oil consumption. Despite engine replacements, the problem persisted, indicating a fundamental design flaw. The sunroof leakage and other system malfunctions further suggest widespread safety and durability issues in the vehicle, rendering it unsafe to operate.