NHTSA Complaint #11396483 — 2016 SUBARU OUTBACK

2.12 FEBRUARY 2021, VEHICLE MILAGE APPROACHING 42,000. TRAVELING FROM MAZAMA WA TO SEATTLE VIA WA HWY 20, US 97 AND I-90, TRAVELED +/- 200 MILES. TEMPERATURE RANGES FROM 10F TO 20F. TRAVELING WEST ON I-90 +/-50 MPH, LANES CLEAR, SNOW IN BETWEEN LANES. NEW MICHELIN TIRES ON ALL 4 WHEELS. HOLDING THE SPEED CONSTANT FOLLOWING 18-WHEEL RIG. SUBARU STARTED WOBBLING AS IF ONE OF THE TIRES WAS GOING FLAT. TRIED ACCELERATING AND SLOWING TO DETERMINE IF THIS WAS FRONT OR BACK TIRE. DETERMINED IT MUST BE A REAR TIRE. NO LOW-PRESSURE INDICATION ON THE INSTRUMENT GAGES (I HAVE HAD TIRE WARNING DURING SUMMER DRIVING AND FOUND A NAIL IN TIRE). NEXT OFF RAMP CHECKED ALL 4 TIRES, ALL APPEARED TO BE THE SAME IN APPEARANCE. RESUMED TRAVEL. DURING ACCELERATION AND DE-ACCELERATING NO DIFFERENTIAL SWAY. WHEN CONSTANT SPEED MAINTAINED AROUND 50 MPH SWAYING OCCURRED UN TO WE REACHED THE WEST SIDE OF SNOQUALMIE PASS AND THE TEMPERATURE WAS INTO THE 30'S. LAST YEAR WHEN HAVING VEHICLE SERVICED, I TOLD THE SERVICE CHECK-IN PERSON & A SUPERVISOR THE CAR WAS STALLING OUT WHEN HARD ACCELERATION DURING MERGING LEFT INTO HIGHWAY WHERE SPEED LIMIT WAS 50 MPH. THE CAR STALLED AND I KICKED THE ACCELERATOR. LUCKILY, THE CAR RESPONDED THE SUPERVISORS RESPONSE WAS 'THERE'S NO WAY THIS CAN HAPPEN'.