2021 Nissan Sentra Electrical System Problems
NHTSA component category: ELECTRICAL SYSTEM · data through 07/14/2026
Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
How electrical system ranks on this vehicle
Share of the 127 complaints citing each category; one complaint can cite several. Full breakdown on the 2021 Nissan Sentra overview page.
What owners report
“Automatic emergency brake engaged while driving when there was not a car directly in front of me. There were no obstructions on the road and…”NHTSA complaint 11641476 — filed 02/08/2025
“The contact owns a 2021 Nissan Sentra. The contact stated that while the vehicle was parked, his aunt entered the vehicle and attempted to start…”NHTSA complaint 11638343 — filed 01/24/2025
“While driving all lights come on dash and flash on and off and says system malfunction while doing 50mph. Suddenly car shuts off while driving…”NHTSA complaint 11590858 — filed 05/27/2024
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Electrical System complaints by year filed
Frequently asked questions
Does the 2021 Nissan Sentra have electrical system problems?
Electrical System is the most-reported problem area on the 2021 Nissan Sentra: 38 of 127 complaints on file (29.9%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2021 Nissan Sentra have in total?
127 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 14 involved a crash, 1 involved a fire, 8 reported injuries, and none reported deaths.
What does NHTSA's electrical system category include?
NHTSA assigns each complaint to standard component categories; this page reports the ELECTRICAL SYSTEM category exactly as NHTSA defines and records it.
