2017 Volvo XC90: check engine light

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 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 Mar 16, 2024 · Engine · LA

Recently our 2017 XC90 experienced a significant coolant system leak via a part that was part of a recall campaign for the prior year model (2016 XC-90). The exact same part (a coolant bleeder hose - part #32249907) failed in our vehicle in a similar manner as the prior year component. There was no antecedent warning prior to its failure until after a significant amount of fluid was lost (literally sprayed about the engine compartment) leading to a low coolant level CEL. The safety concern, as stated in the prior recall, is that this particular part failure can cause coolant to leak on the catalytic converter heat shield insulation causing a fire hazard. The connector of the hose in our vehicle literally started to deteriorate and crumble at multiple locations. The vehicle is only 8 years old. This has to be a related failure of an already identified defective component. The prior recall is noted as: 19V‑308 / R29936 The vehicle required towing and the component was replaced at the local dealership at standard cost. We are obviously concerned that others with our particular year and model could experience a more catastrophic end.

Filed Apr 12, 2022 · Electrical, Engine · CA

While driving in hybrid mode while both the gasoline and electric motor are running or shifting back and forth, occasionally the electric motor will come on with a sharp, sometimes loud, metallic “bang”. The sound and feel appears to be coming from the rear. The last two times it happened, the car lunged forward on its own without additional pressure on the accelerator, and once over the past week it lunged forward near an intersection when lifting off the accelerator pedal and engaging the brake. The lunge almost caused me to rear end the car in front of me which I was not very close to. This occurs about once every 50 miles travelled or once per day and at various speeds. To date it has not generated a CEL or any other type of warning.

Filed Mar 9, 2022 · Airbags · 92,000 miles · TX

The contact owns a 2017 Volvo XC90. The contact stated that while operating the vehicle, the air bag and check engine warning lights intermittently illuminated. Additionally, the message "Pullover Engine Overheating" was displayed. The vehicle was taken to the local dealer who diagnosed that failure was caused by the drain hose for the air conditioning leaking into the passenger’s side compartment due to a drain hose installation error during manufacturing. The vehicle was not repaired. The manufacturer was notified of the failure. The contact was informed that the vehicle was not included in the federal safety agency Campaign Number: 16V690000 (Equipment, Air Bags). The contact indicated that the vehicle had experienced the failure listed in the recall. The failure mileage was 92,000.