2021 Mazda CX-5

Differential went and generated a cascading chain reaction destroying the coupler and breather and axles. Car is undrivable. This. Defect has a TSB

2021 Mazda CX-5 2.5L non-turbo. While driving at approximately 8 mph, I removed my foot from the accelerator, but the vehicle unexpectedly accelerated on its own. I did not press the accelerator pedal. I had to apply the brake to slow the vehicle down. This issue has occurred three separate times, on August 25, September 4, and September 18, 2026, at approximately 70,060 miles. The same unintended acceleration behavior occurred during all three incidents.

Twice while making left turns from a stop into faster cross traffic, the accelerator was pressed but the vehicle barely moved (coasting) for roughly 2 - 3 seconds, then suddenly accelerated normally, creating a near-collision risk as cross traffic quickly approached. No warning lights were observed on the dash.

My CX-5 has 25,000 miles and recently the a/c failed culminating in a distinct chemical smell in the cabin. The issue was identified as a leaking/failed evaporator which apparently is located behind the dashboard and in turn “dump” the leaking refrigerant into the cabin! The total cost of repair due to the location of the evaporator is between 3000-4500 in my area, seems a high cost to be poisoned by a vehicle that only has 25,000 miles on the clock!

My 2021 Mazda CX-5 has developed a persistent rattling/vibration noise from the A-pillar and upper corner of the windshield. The noise appears to originate from the windshield/A-pillar attachment area and may be related to improper adhesion, mounting, weatherstripping, or other components near the top of the windshield. I have found numerous similar owner reports involving Mazda CX-5 and other fourth-generation Mazda models describing rattling, clicking, or vibration from the same windshield/A-pillar area. Because this issue appears to affect a significant number of vehicles, I believe NHTSA should investigate whether there is a common manufacturing or assembly defect and determine whether a manufacturer repair campaign or recall is warranted.

While driving in the Interstate, a truck swerved towards my lane; I swerved into the next lane to avoid the truck hitting me and when I began to swerve my Lane Departure warning malfunctioned and caused my car to completely shut down. I immediately put my hazard lights on to hopefully avoid being hit; but, a car behind plowed right into my rear end. The police were onsite at the accident. My vehicle has been inspected by an independent service center and my insurance representative.

I was sitting at a traffic light with my foot on the brake waiting to turn left onto Lee Highway from Fairfax County Parkway. Car jerked forward TWO times in a row, both times hitting the car in front of me. Our lane was at a dead stop waiting for the left hand arrow. The cars to the right of us had the green and were moving forward. I felt like I had no control over the car during this time.

The vehicle developed an engine oil leak from the timing cover due to what appears to be premature seal failure. Engine oil was leaking externally and could drip onto hot engine components, creating a potential fire hazard while the vehicle is in operation. The leak also increases the risk of low engine oil levels, which could lead to engine damage or sudden engine failure if not detected in time. This issue required an expensive repair despite the vehicle being properly maintained. I have since learned that many other Mazda owners have reported similar timing cover oil leaks on this engine, suggesting this may be a widespread defect rather than normal wear and tear. I am submitting this complaint so NHTSA can evaluate whether this represents a safety-related defect that warrants further investigation.