2020 Nissan Altima: Automatic emergency brake malfunction
Common wear/failure (not a recall)
Symptoms
Owners of the 2020 Altima report: automatic emergency brake malfunction. CarComplaints.com lists 2 owner complaints, average mileage 29,000 miles.
NHTSA has 18 owner complaints for the 2020 Altima in this area. Examples:
- NHTSA complaint ODI #11750330 (filed 07/14/2026): “The contact owns a 2020 nissan altima. the contact stated that the auto-braking system unexpectedly activated, and there was a grinding sound coming from the brakes; however, the vehicle failed to stop as needed. the abs warning light was illuminated. while dr…”
- NHTSA complaint ODI #11735973 (filed 05/06/2026): “I was leaving for work, backing out of the driveway, and the brakes just locked up out of no where. i’ve done this multiple times and the brakes have never done this. i tried pulling up and trying again, turning the car off and back on, and backing a different…”
Likely causes
Sources do not establish a single root cause; diagnosis is needed. Owner-reported fixes are listed below.
Fix, in plain English
Most common owner-reported solutions on CarComplaints.com: class action lawsuit (1 reports). Check for open recalls and extended warranty coverage with a dealer before paying out of pocket.
DIY difficulty: Moderate
Pads and rotors are a common DIY job with hand tools and a jack; ABS/hydraulic faults need a scan tool. (Our assessment.)
Cost
No sourced cost range: get a written quote after diagnosis.
Typical parts (search links, no affiliate codes)
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