2020 Nissan Altima Engine Problems
NHTSA component category: ENGINE · data through 09/08/2026
Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
How engine ranks on this vehicle
Share of the 158 complaints citing each category; one complaint can cite several. Full breakdown on the 2020 Nissan Altima overview page.
What owners report
“I was driving on the Freeway and without warning my car reduced speed. Then there was a warning bell that showed engine malfunction power reduced…”NHTSA complaint 11595567 — filed 06/20/2024
“Itâs been 2 times that I get the WARNING â ï¸ Sign of Engine Malfunction Power Reduced Service now and at the same time another…”NHTSA complaint 11595276 — filed 06/19/2024
“Engine failed prematurly with less than 40k miles. All service was completed in a timely fashion. Nissan is taking a long time to get back…”NHTSA complaint 11591858 — filed 06/01/2024
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Engine complaints by year filed
Frequently asked questions
Does the 2020 Nissan Altima have engine problems?
Engine is the #3 most-reported problem area on the 2020 Nissan Altima: 33 of 158 complaints on file (20.9%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2020 Nissan Altima have in total?
158 complaints were on file with NHTSA as of 09/08/2026. Across all categories, 15 involved a crash, 5 involved a fire, 13 reported injuries, and 1 reported deaths.
What does NHTSA's engine category include?
NHTSA assigns each complaint to standard component categories; this page reports the ENGINE category exactly as NHTSA defines and records it.
