The quietest year of the old body and the start of a second, later CVT settlement — but that coverage has run out too, so the drive still decides it.

Recall 21V135 covers every 2016–2019 Sentra: 807,376 vehicles, and it is why an exterior-lighting cluster shows up in the 2018 complaint file at all. The brake-light switch can become contaminated so the circuit never closes and the brake lights do not illuminate when you press the pedal. Dealers replace the switch and add a protective grommet, free of charge; Nissan's code is PM971 and owner letters went out on 1 July 2022. Check it physically — have someone stand behind the car while you press the pedal — and then check it by VIN.

Recall 19V654 is a compliance recall covering a very wide sweep of 2018–2019 Nissan and Infiniti models including the Sentra. The back-up camera's display settings can be adjusted so that the rear image is no longer shown, and the car remembers that setting the next time you select reverse — which puts it outside the federal rear-visibility standard. The fix is a free software update at the dealer. It is a software problem rather than a broken camera, so a car that shows a picture today can still be an open recall on paper. Run the VIN.

2018 is the first Sentra year where forward-collision and automatic-emergency-braking complaints form a visible group in the federal file. Owners describe the car braking for things that are not in its path, or the warning light flashing with no fault stored. AEB is automatic emergency braking, the system that applies the brakes for you if it thinks a collision is coming; FCW is forward collision warning, the alert that comes first. Nissan has published bulletins covering false activation and warning-light behaviour on later Sentras, and the general fix path is a healthy battery, a clean and unobstructed radar and camera, and a software update. On a 2018 this is an annoyance rather than an expense, but it is worth raising with a dealer rather than living with, because a system that cries wolf is a system you stop trusting.

Nissan ran a Voluntary Emissions Service Campaign — a free fix that is not a safety recall, so it will not appear on a standard VIN recall lookup — on 853 specific 2018 Sentra SR and NISMO cars with the 1.6-litre turbo engine. The engine control module's software would keep a fault code permanently stored after a multiway control valve problem had already been repaired, so the car would fail a smog test even though the fault was fixed. Nissan's campaign ID is R1805 (it started as inventory quality action P8307) and the repair procedure is NTB18-044. It is a software reflash and it is free. If you are buying a 2018 SR Turbo or NISMO and it has failed an emissions test on a stored code, ask the dealer to check R1805 eligibility by VIN before anyone starts replacing parts.