What is the 2015-2021 Nissan Sentra Forward Emergency Braking (AEB) Phantom Activation?

Sentras equipped with Nissan's Forward Emergency Braking / Automatic Emergency Braking apply the brakes hard for non-existent obstacles ('phantom braking'). The Bosch radar module behind the front grille (sensor assembly p/n 28438-5UD0A) produces false positives, frequently trigg… Repairs typically run $600-$1,400. Severity: high.

What is the 2013-2019 Nissan Sentra A/C Compressor Failure?

The A/C compressor on 2013-2019 Sentra models is known to fail prematurely, often within 60,000-80,000 miles. The compressor clutch bearings seize or the internal components disintegrate, sending metal debris throughout the A/C system. When the compressor fails internally, the en… Repairs typically run $600-$1,200. Severity: medium.

What is the 2013-2022 Nissan Sentra Premature Catalytic Converter Failure?

The B17 and B18 Sentra with the MR20DD engine is prone to premature catalytic converter failure, often before 100,000 miles. The converter substrate breaks down, triggering P0420 efficiency codes. Contributing factors include the direct injection engine's tendency to produce more… Repairs typically run $300-$1,500. Severity: medium.

What is the 2013-2019 Nissan Sentra Shift-Lock Solenoid Failure / Shifter Stuck in Park?

The shift-lock solenoid integrated into the floor shifter assembly fails, leaving the lever physically stuck in Park even with the brake pressed. CarComplaints documents a dedicated 'Shifter Lock Up' pattern with owners forced to use the manual override hole with a screwdriver an… Repairs typically run $200-$500. Severity: medium.

What is the 2013-2019 Nissan Sentra Crankshaft Position Sensor Failure Causing Hot Stalling / No-Start?

The crankshaft position sensor's internal electronics degrade with heat and fail intermittently. As the engine warms the sensor signal drops out, causing the engine to stall and refuse to restart until it cools, then run normally again. It sets P0335/P0336 and is frequently misdi… Repairs typically run $150-$350. Severity: medium.

What is the 2013-2019 Nissan Sentra P0171 — System Too Lean (Bank 1) from Leaking Intake Manifold Gasket / Cracked Intake Boot?

On the B17-generation Sentra with the 1.8L MRA8DE four-cylinder, P0171 is overwhelmingly a vacuum/unmetered-air leak rather than a bad sensor. The intake manifold gasket becomes brittle with age and heat and lets in air the MAF never measured, driving long-term fuel trims positiv… Repairs typically run $120-$450. Severity: medium.

What is the 2007-2019 Nissan Sentra Mass Air Flow Sensor Contamination and Failure?

The Sentra MAF sensor is prone to contamination and failure, causing driveability issues. Oil from aftermarket air filters (especially oiled cotton filters) or crankcase ventilation can coat the hot wire element, causing incorrect air flow readings. This leads to poor fuel mixtur… Repairs typically run $10-$250. Severity: low.

What is the 2013-2019 Nissan Sentra P0128 — Coolant Below Regulating Temperature from Thermostat Stuck Open?

On the Sentra, P0128 is set when the ECM sees the engine failing to reach normal operating temperature within an expected time — almost always a thermostat that has failed stuck open, so coolant circulates continuously and the engine runs cool. The 1.8L MRA8DE cars (2013-2019) us… Repairs typically run $150-$450. Severity: low.

Nissan · Known Issues

2018 Nissan Sentra Problems: 12 Issues Every Owner Should Know

2018 model year · 4,570+ owner reports · Updated July 2026

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According to Au7o's analysis of 4,570+ owner reports, the 2018 Nissan Sentra has 12 documented known issues, with 5 rated critical. The most serious are CVT Transmission Failure (Jatco CVT7/JF015E) ($300-$5,000 repair), Timing Chain Stretch and Rattle (MR20DD Engine) ($800-$1,500 repair), Forward Emergency Braking (AEB) Phantom Activation ($600-$1,400 repair), Brake Light Switch Failure - No Brake Lights / Won't Shift From Park (Recall PM971 / 21V-135) ($0-$0 repair) and P0741 — Torque Converter Clutch Stuck Off from CVT Lockup Solenoid / Valve-Body Wear and Degraded CVT Fluid ($200-$1,800 repair). The most commonly reported issue is CVT Transmission Failure (Jatco CVT7/JF015E) with 3,200 owner reports. Across all issues with published estimates, repair costs range from $10 to $5,000. DIY maintenance guides at au7o.io.

Frequently Asked Questions

What are the most common Nissan Sentra problems?

According to Au7o's analysis of 4,570+ owner reports, the 2018 Nissan Sentra has 12 documented issues. The most frequently reported are: CVT Transmission Failure (Jatco CVT7/JF015E), Timing Chain Stretch and Rattle (MR20DD Engine), Forward Emergency Braking (AEB) Phantom Activation. Of these, 5 are rated critical and should be addressed promptly.

Is the Nissan Sentra reliable?

The 2018 Nissan Sentra has 12 known issues documented across 4,570+ owner reports. 5 issues are rated critical: CVT Transmission Failure (Jatco CVT7/JF015E) and Timing Chain Stretch and Rattle (MR20DD Engine) and Forward Emergency Braking (AEB) Phantom Activation and Brake Light Switch Failure - No Brake Lights / Won't Shift From Park (Recall PM971 / 21V-135) and P0741 — Torque Converter Clutch Stuck Off from CVT Lockup Solenoid / Valve-Body Wear and Degraded CVT Fluid. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Nissan Sentra problems?

Repair costs for known Nissan Sentra issues range from $0 to $5,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, CVT Transmission Failure (Jatco CVT7/JF015E), typically costs $300-$5,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2013-2021 Nissan Sentra CVT Transmission Failure (Jatco CVT7/JF015E)?

The 2013-2021 Sentra uses the Jatco CVT7 (JF015E) transmission which is prone to premature failure, shuddering, and overheating. Nissan extended the CVT warranty to 10 years/120,000 miles under Customer Service Initiative P8242. The transmission can fail as early as 60,000 miles. Repairs typically run $300-$5,000. Severity: high.

What is the 2013-2019 Nissan Sentra Timing Chain Stretch and Rattle (MR20DD Engine)?

The MR20DD 2.0L engine in the 2013-2019 Sentra suffers from premature timing chain stretch causing a rattling noise on cold start and potential engine damage. The chain tensioner and guides also wear prematurely. If the chain jumps, it can cause valve-to-piston contact and catast… Repairs typically run $800-$1,500. Severity: high.

All 12 Known Issues

Other Nissan Models

Frequently Asked Questions

What are the most common Nissan Sentra problems?

Is the Nissan Sentra reliable?

How much does it cost to fix common Nissan Sentra problems?

What is the 2013-2021 Nissan Sentra CVT Transmission Failure (Jatco CVT7/JF015E)?

What is the 2013-2019 Nissan Sentra Timing Chain Stretch and Rattle (MR20DD Engine)?

When Issues Typically Appear

2013-2021 Nissan Sentra: CVT Transmission Failure (Jatco CVT7/JF015E)#

2013-2019 Nissan Sentra: P0741 — Torque Converter Clutch Stuck Off from CVT Lockup Solenoid / Valve-Body Wear and Degraded CVT Fluid#

2013-2019 Nissan Sentra: Timing Chain Stretch and Rattle (MR20DD Engine)#

2013-2019 Nissan Sentra: Crankshaft Position Sensor Failure Causing Hot Stalling / No-Start#

2016-2019 Nissan Sentra: Brake Light Switch Failure - No Brake Lights / Won't Shift From Park (Recall PM971 / 21V-135)#

2013-2019 Nissan Sentra: A/C Compressor Failure#

2015-2021 Nissan Sentra: Forward Emergency Braking (AEB) Phantom Activation#

2013-2019 Nissan Sentra: P0171 — System Too Lean (Bank 1) from Leaking Intake Manifold Gasket / Cracked Intake Boot#

2007-2019 Nissan Sentra: Mass Air Flow Sensor Contamination and Failure#

2013-2022 Nissan Sentra: Premature Catalytic Converter Failure#

2013-2019 Nissan Sentra: Shift-Lock Solenoid Failure / Shifter Stuck in Park#

2013-2019 Nissan Sentra: P0128 — Coolant Below Regulating Temperature from Thermostat Stuck Open#