"How reliable is the 2021 Nissan Sentra?"

"Based on 201 NHTSA complaints, the 2021 Nissan Sentra has a median complaint mileage of 25000 miles. The most common issue is Electrical System."

"What are common problems with the 2021 Nissan Sentra?"

"The most frequently reported component in NHTSA complaints for the 2021 Nissan Sentra is Electrical System, accounting for a significant portion of the 201 total complaints filed."

2021 Nissan Sentra: Reliability Data

Source: NHTSA — 201 complaints

201

Total Complaints

25,000mi

Median Mileage

Electrical System

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

12,036 25th Percentile

25,000 Median Mileage

43,177 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

Electrical System

Steering

Automatic Emergency Braking

Service Brakes

Unknown Or Other

Warnings

Engine

Vehicle Speed Control

Exterior Lighting

Wheels

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"Car will not start. Unexplained battery depletion. Trunk will not close when car is not on. Awful customer service at ORR Nissan in Shreveport Louisiana Address: 1240 E Bert Kouns, Shreveport Louisiana, 71105 Their entire operations need to be shut down. Bunch of incompetent druggies."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

When Were Complaints Filed?

Number of complaints by the year the issue occurred.

When Does Each Component Fail?

Median mileage at complaint for top components.

Steering 35 complaints

25th: 14,500 mi Median: 33,000 mi 75th: 41,588 mi

Service Brakes 23 complaints

25th: 14,200 mi Median: 18,882 mi 75th: 21,823 mi

Where Are Complaints Coming From?

Top states by complaint count.

CA: 27 GA: 21 IL: 18 TX: 14 FL: 14 NY: 11 PA: 9 VA: 8 NJ: 6 MO: 6

Nissan Sentra — Other Years

See how this model compares across different model years.

Year	Complaints	Median Mileage	Top Issue	Crashes
1990	45	-	Engine	8
1991	77	202,299	Buckle Assembly	10
1992	81	107,500	Gasoline	10
1993	89	110,439	Manual Transmission	11
1994	130	180,000	Seat Belts	29
1995	158	157,994	Frontal	38
1996	177	63,000	Frontal	47
1997	138	113,500	Frontal	34
1998	76	102,000	Frontal	21
1999	74	78,987	Ignition	19
2000	236	53,800	Engine	27
2001	307	60,500	Engine And Engine Cooling	38
2002	372	69,000	Engine And Engine Cooling	19
2003	240	66,956	Engine And Engine Cooling	17
2004	235	75,000	Engine And Engine Cooling	27
2005	224	77,650	Engine	16
2006	155	80,000	Air Bags	29
2007	214	61,000	Air Bags	32
2008	233	67,318	Air Bags	31
2009	81	56,000	Air Bags	18
2010	212	76,328	Electrical System	18
2011	199	75,000	Electrical System	26
2012	259	62,000	Power Train	22
2013	864	59,000	Power Train	35
2014	522	65,889	Power Train	32
2015	488	50,000	Power Train	34
2016	397	55,000	Power Train	29
2017	334	42,000	Power Train	41
2018	283	39,000	Power Train	29
2019	343	22,324	Electrical System	27
2020	306	17,250	Steering	17
2022	129	30,700	Steering	3
2023	31	-	Electrical System	1
2024	49	30,000	Steering	11
2025	33	-	Engine	7

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28