2017 Volvo XC90

2017 Volvo XC90 T8 plug-in hybrid, approximately 81,000 miles, experienced intermittent hesitation/loss of propulsion when accelerating. When acceleration is requested, the vehicle can hesitate before power is delivered, creating a serious safety concern when entering, merging into, or crossing traffic because expected acceleration is not immediately available. Diagnostic testing identified faults in the IEM/ERAD system, including P286D00, Clutch A Engagement Time Performance/Too Slow, and P0A1B62, Drive Motor A Control Module, Algorithm Based Failure. The vehicle is currently being evaluated by an authorized Volvo dealer. I was advised that the high-voltage battery cells appear to be functioning properly and that the dealer is consulting Volvo technical support regarding the loss-of-acceleration condition. Volvo has issued Technical Journal guidance addressing ERAD clutch DTCs, including P286D00, on this generation of XC90. I am concerned that delayed or failed engagement of the ERAD clutch can cause an unexpected delay or loss of propulsion during acceleration. I am also aware of another NHTSA complaint involving a 2017 Volvo XC90 ERAD clutch failure, NHTSA Complaint No. 11673211, describing a delay in propulsion followed by sudden power delivery. I am requesting that NHTSA review this condition as a potential safety defect involving ERAD clutch engagement and intermittent loss or delay of propulsion in Volvo XC90 T8 vehicles.

Spark plugs, fuel injectors, cylinders and cylinder walls, pistons, oxygen sensor. Our safety was put at risk because the vehicles "reduced performance" was triggered and it affected the acceleration of the vehicle. The Volvo dealership was able to reproduce the issue because of the engine misfires.The only alert we received was the day prior our engine needed a liter of oil. We topped off the oil and that alert went away. The day we had the reduced performance we were alerted of that at the time on the highway. It's a little turtle icon. We were not able to accelerate efficiently and it was definitely unsafe to be driving but we had to get home.

On thanksgiving day i drove to train station in the morning, and had no issue. After work i got in the car started to drive, i was going 25-35 miles per hour in the maplewood township, and i wanted to slow down just in case i dont see any kid or person at dark. I almost had no brake! I was so scared and i pushed th brake pedal so hard, i was very dangerous for the society at this moment. I just wish i was not on the highway going higher speed, or there were no people around! I really cannot trust this car anymore, i could have hit something!!!

ERAD (Electronic Rear Axle Drive) clutch failure. Upon depressing accelerator pedal, when in drive modes that rely more on ERAD (Hybrid/Pure modes), the clutch occasionally does not engage correctly, resulting in no power for a full 1-2 seconds, then power kicking in, in full. Not being consistent means not having a good way to anticipate when the problem will arise in order to compensate for it. The hazard came when attempting to cross traffic (to take a left into a commercial driveway), the delay happened, then before the ability to fully "cancel the attempt" (by releasing the accelerator and pressing the brake while still in the turn lane), the power kicked in and sent the vehicle into traffic. The delay-then-subsequent full-power meant that the gap was suddenly significantly smaller when pulling into the oncoming lanes, and attempting to correct for a delay in power meant the possibility of then not having the accelerator down, which could have left me in in the lane of oncoming traffic for much longer than necessary due to human reaction times in addition to vehicle "reaction times" to inputs. This is apparently a relatively common issue on Volvos of this generation, with multiple "ERAD versions" to account for transmission clutch failures within these units, as well as other failures.