NHTSA Complaint #11673211 — 2017 VOLVO XC90

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.