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Airbag / Occupant Detection Defect — Recall 14V138000 (OCS Software, 2014)
airbag warning light; passenger airbag may not deploy; SRS warning; occupant detection fault
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2014-2019 Nissan Sentra owners: CVT failures, 5 airbag recalls, and brake switch defects may qualify for a California lemon law buyback. Free case review.
You bought the 2014-2019 Nissan Sentra because it promised affordable, practical transportation — reasonable fuel economy, a comfortable cabin, and the reassurance of a major Japanese nameplate. What thousands of Sentra owners got instead was a car defined by its transmission. The Xtronic CVT (JF015E) fitted to every B17 Sentra became one of the most-complained-about transmission units in the NHTSA database: more than 500 powertrain complaints across the 2014-2016 model years alone, with owners describing the same terrifying sequence — engine revving wildly, car refusing to accelerate, sudden loss of drive at highway speed, and a dealer telling them the repair bill would be $5,000 to $7,000. That repair, more often than not, failed again within months.
The CVT story is only part of it. Nissan opened five separate airbag-related recall campaigns on the B17 platform between 2014 and 2017, all targeting the occupant classification system that controls passenger airbag deployment — the same system, the same years, repaired and recalled again and again. A sixth campaign in 2016 addressed an airbag inflator manufacturing defect. A seventh recall in 2021 covered brake light switch contamination across MY2016-2019 Sentras — a defect so persistent that owners report replacing the switch three or more times after the recalled remedy failed within months.
Nissan did acknowledge the CVT problem — quietly, without a formal recall — by extending the Sentra's powertrain warranty to seven years or 84,000 miles. That extension helped some owners but left many others outside its scope, either because their failure occurred at higher mileage, or because Nissan's dealers declined to cover CVT repairs under the extension in practice. For California owners, the combination of recurring transmission failures, repeated airbag system recalls, and brake light switch defects that kept coming back after 'fixes' is exactly the fact pattern Song-Beverly lemon law was designed to address.
The issues owners report most, ranked by severity — each one verified against a cited NHTSA source.
airbag warning light; passenger airbag may not deploy; SRS warning; occupant detection fault
warning light; recall notice; repeated dealer repair
airbag warning light; passenger airbag may not deploy; SRS warning; occupant detection fault
airbag warning light; passenger airbag may not deploy; SRS warning; occupant detection fault
airbag warning light; passenger airbag may not deploy; SRS warning; occupant detection fault
airbag warning light; passenger airbag may not deploy; SRS warning; occupant detection fault
A settled Margarian Law case on this exact model, published with the actual settlement math.
Open any defect for the symptoms and why it matters for a California lemon-law claim. Each is tied to a cited NHTSA source.
airbag warning light; passenger airbag may not deploy; SRS warning; occupant detection fault
This OCS software recall (14V138000) deactivated the passenger frontal airbag without warning, creating a crash-injury risk for front-seat passengers. If the dealer performed the software update but the airbag warning light returned — or if the owner experienced an intervening crash before remedy — repeat trips for airbag warning lights on a recalled safety system strengthen a Song-Beverly claim considerably. California courts treat unrepaired safety recalls as strong evidence of non-conformity.
Nissan will notify owners, and dealers will update the OCS software, free of charge. The recall began on April 14, 2014. Owners may contact Nissan at 1-800-647-7261.
warning light; recall notice; repeated dealer repair
Recall 15V453000 addressed door latches that failed to fully engage, risking the door opening at speed and an unbelted occupant being ejected. If the dealer inspected but did not replace the latches (because the date/lot code check passed but the latch later failed), or if the owner required a repeat latch repair, these visits count toward Song-Beverly's repair-attempt threshold. A door that re-opens at speed on a post-recall vehicle is a safety non-conformity.
Nissan will notify owners, and dealers will inspect the date, lot number, and cavity code on the left front and rear door latches, and replace them, as necessary, free of charge. The recall began on August 31, 2015. Owners may contact Nissan customer service at 1-800-647-7261.
airbag warning light; passenger airbag may not deploy; SRS warning; occupant detection fault
Recall 15V681000 was triggered because dealers installed the wrong OCS control unit during the MY2013-2014 Sentra's prior recall repair (14V138000), compounding the original airbag defect. Back-to-back recall campaigns on the same airbag system for the same model years — with an intervening incorrect dealer repair — is textbook evidence of a non-conformity that could not be corrected in a reasonable number of attempts, supporting a Song-Beverly claim for affected MY2014 owners.
Nissan will notify owners, and dealers will update the OCS software, free of charge. The recall began on November 30, 2015. Owners may contact Nissan at 1-800-647-7261.
airbag warning light; passenger airbag may not deploy; SRS warning; occupant detection fault
Recall 16V242000 covered MY2013-2016 Sentras where a deformed front seat-belt bracket caused the OCS to misread a child seat, potentially deploying the passenger airbag into a child. Owners with MY2014-2016 Sentras who ever installed a child seat in the front passenger position and experienced airbag warning lights after the recall repair may have grounds to assert the vehicle was not properly conformed, especially if the complaint involves the bracket reinforcement failing to hold.
Nissan will notify owners, and dealers will reinforce the seat belt bracket as well as reprogram the Air Bag Control Unit (ACU) and OCS Electronic Control Unit (ECU), free of charge. The recall began on June 13, 2016. Owners are warned not to install a CRS in the front seat. Owners may contact Nissa
airbag warning light; passenger airbag may not deploy; SRS warning; occupant detection fault
Recall 16V244000 is the broadest of the OCS campaigns, covering MY2014-2016 Sentras where the OCS could misclassify an adult as a child or classify an occupied seat as empty, disabling the passenger frontal airbag. For Sentra owners who experienced this recall's remedy and then saw SRS warning lights return — or who were in a collision where the airbag did not deploy — the documented OCS failure chain across five separate recall campaigns is powerful evidence of a persistent, manufacturer-acknowledged defect.
Nissan will notify their owners. Chevrolet City Express owners will be notified by General Motors. Dealers will reprogram the Air Bag Control Unit (ACU) and OCS Electronic Control Unit (ECU) in Altima, Maxima, Murano, Rogue, and Sentra vehicles, and replace the OCS ECU in LEAF, NV200, NV200 Taxi, Pa
airbag warning light; passenger airbag may not deploy; SRS warning; occupant detection fault
Recall 16V436000 addressed a narrow production window (Feb 9–Mar 4, 2016) where the wiring harness could disconnect from the passenger dual-stage airbag module, rendering the airbag non-functional in a crash. If a MY2016 Sentra in that production date range was repaired under this recall and subsequently showed SRS warning lights, or if the harness connector was found disconnected at a later service visit, the owner may have a warranty non-conformity claim even outside the lemon-law period.
Nissan will notify owners, and dealers will inspect the wiring harness connector for proper engagement and, if necessary, replace the passenger air bag module and main body harness, free of charge. The recall began on August 9, 2016. Owners may contact Nissan customer service at 1-800-647-7261.
warning light; recall notice; repeated dealer repair
Recall 16V485000 targeted a narrow April 2016 production window where an oversized terminal pin in the engine room harness could cause the ECU connection to drop, stalling the engine at speed. Stalling at highway speeds is a non-collision crash risk. If a MY2016 Sentra in this production window experienced a stall event — even post-recall — and the dealer documented the engine room harness again, those repair orders support a safety-defect non-conformity argument under Song-Beverly.
Nissan will notify owners, and dealers will replace the terminal pin on the engine room harness, free of charge. The recall began on August 15, 2016. Owners may contact Nissan customer service at 1-800-647-7261.
airbag warning light; passenger airbag may not deploy; SRS warning; occupant detection fault
Recall 17V253000 addressed a manufacturing error in passenger frontal airbag inflators that could prevent proper deployment in a crash. For owners of MY2014, 2016, and 2017 Sentras — already subjected to multiple prior airbag recalls — this fifth airbag campaign on the same vehicle demonstrates that Nissan's repeated remedies failed to permanently conform the airbag system. The cumulative recall history is among the strongest lemon-law evidence available: the manufacturer itself acknowledged the defect five separate times on the same platform.
Nissan will notify owners, and dealers will replace the front passenger air bag inflator, free of charge. The recall began June 7, 2017. Owners may contact Nissan customer service at 1-800-647-7261.
warning light; recall notice; repeated dealer repair
Recall 18V551000 addressed ignition switches on MY2017 Sentras that could rotate from run to accessory under key-ring weight, stalling the engine mid-drive. Engine stall at speed is a collision hazard. If a MY2017 Sentra owner experienced an engine stall after the recall repair — whether due to a new switch also failing or because the vehicle was repaired outside the recall's production-date scope — that visit is a direct safety non-conformity. Dealers sometimes closed inspection visits as 'no defect found' for vehicles near the production date boundary; owners should verify their VIN was actually covered and repaired.
Nissan will notify owners, and dealers will inspect the production information on the ignition switch, and replace it as necessary, free of charge. The recall began October 1, 2018. Owners may contact Nissan customer service at 1-800-867-7669.
backup camera blank; screen goes black in reverse; rearview camera distorted
Recall 19V654000 addressed backup camera settings that, once changed, retained a 'no image' state every time the vehicle was placed in reverse, violating FMVSS 111. The defect is a regulatory compliance failure, but the safety consequence is limited to reduced rear visibility rather than an autonomous crash risk. As a standalone issue, it is unlikely to sustain a Song-Beverly claim, but it contributes to cumulative out-of-service days if the remedy required multiple dealer visits and counts as a non-conformity on the vehicle's overall repair history.
Nissan will notify owners in phases, having dealers update the back-up camera settings software, free of charge. The recall began November 11, 2019 and all affected VINs should be activated. Owners may contact Nissan customer service at 1-800-867-7669 or INFINITI customer service at 1-800-662-6200.
brake pedal problem; reduced braking; unexpected braking; brake warning light
Recall 21V135000 (PM971) covered MY2016-2019 Sentras for stop lamp switch contamination that caused brake lights to fail — creating a rear-end collision hazard — and also prevented push-button starting, stranding owners. NHTSA complaint data documents owners on their third brake light switch replacement after prior recall repairs, with Nissan only warranting the recall fix for 12 months/12,000 miles. Recurring failure of a recalled safety item — brake lights that enable other drivers to see you braking — is among the clearest Song-Beverly non-conformities: the manufacturer acknowledged the defect, provided a remedy, and the remedy failed to permanently fix the vehicle.
Dealers will replace the brake light switch and install a protective grommet, free of charge. Owner notification letters were mailed July 1, 2022. Owners may contact Nissan customer service at 1-800867-7769. Nissan's number for this recall is PM971.
transmission shuddering or jerking during acceleration; car won't accelerate above 5 mph; RPMs rev but vehicle won't move; sudden loss of power on highway; CVT slipping between ratios; engine revving high but car not moving; grinding or whining noise from transmission; transmission overheating smell; check engine light with code P17F0; car stalls and won't restart; transmission failed under 100k miles
The CVT failure pattern is the Sentra's most potent lemon-law angle: failures occur repeatedly, dealers frequently cannot duplicate the shudder during a short test drive, and replacement transmissions have failed again within months of repair. Under Song-Beverly, a transmission failure that requires three or more repair attempts — or any repair attempt that leaves the vehicle out of service for 30-plus days — triggers a presumption of non-conformity. California owners who experienced CVT failure within the Nissan extended warranty window (7yr/84k mi) and received a repair that did not hold have strong eligibility.
CVT fluid flush and replacement (Nissan NS-3 fluid required); if symptomatic, valve body replacement; ultimately, CVT unit replacement ($5,200-$7,000 OEM). Nissan extended warranty covers CVT to 7yr/84k mi for qualifying vehicles. Post-warranty owners bear full cost.
check engine light with P0101 code; hesitation or stumble on acceleration; engine stalls at traffic lights; car won't drive after braking; mass airflow sensor replaced but code returns; rough idle; loss of power at low speeds; engine surges
Recurring P0101 stalling that returns after MAF sensor replacement can satisfy the Song-Beverly repair-attempt threshold if the dealer documents the same code on three or more visits. Because stalling creates a safety hazard (vehicle stops in traffic), the defect may also qualify under the statute's 'serious safety hazard' provision, which requires only two repair attempts to trigger the lemon-law presumption.
MAF sensor replacement (Nissan OEM); air filter replacement; cleaning intake path; ECM reprogramming if available. Recurrence is common — owners report 2-3 sensor replacements before achieving lasting resolution.
infotainment screen goes black while driving; screen freezes and requires reboot; radio stays on after car is shut off, draining battery; USB ports stop working; Bluetooth disconnects repeatedly; Apple CarPlay or Android Auto won't connect; screen flickers or distorts; system takes minutes to boot
Infotainment issues alone rarely sustain a Song-Beverly claim, but when the NissanConnect drain repeatedly disables the vehicle (dead battery requiring jump starts), the defect becomes a 'use, value, or safety' impairment. If the condition has required three or more dealer repair attempts without a lasting fix, it may qualify as a covered defect under California law, particularly when combined with other open issues on the same vehicle.
Dealer software update to NissanConnect head unit firmware; if drain persists, head unit module replacement. Multiple dealer visits typically required.
ABS warning light stays on; all dashboard warning lights illuminate simultaneously; wheel speed sensor codes C1103 or C1104; ABS light returns after sensor replacement; vehicle dynamic control (VDC) light on; brakes feel different under light stops; traction control inactive warning
ABS failure disables a federal safety system and is treated seriously under Song-Beverly. If the ABS warning light cannot be extinguished across three or more dealer visits — and the vehicle has been returned to the owner without a working ABS system — the repair history supports a lemon-law claim. Persistent inoperative ABS may also constitute a serious safety hazard under Vehicle Code §9948.5, halving the repair-attempt threshold.
Wheel speed sensor replacement (C1103/C1104); if code recurs, ABS control module replacement. Diagnostic costs frequently exceed $1,000 before resolution.
automatic emergency braking engages with nothing in front of car; forward collision warning beeps constantly with no obstacle; Front Radar Unavailable Due to Obstruction message; car brakes unexpectedly on highway; AEB activates in rain or when sunlight reflects; system cannot be deactivated; sensor fails within months of recalibration
Phantom AEB activation at highway speeds creates an uncontrolled braking event that can cause rear-end collisions — a clear safety hazard. Under Song-Beverly, a safety defect that has been subject to two repair attempts (recalibrations that did not hold) triggers the lemon presumption. Owners should document each dealer recalibration attempt, including the date and mileage, to build a paper trail for counsel.
Radar sensor recalibration; if recurrence persists, radar module replacement. Nissan has not issued a formal recall for this pattern as of Jun 30, 2026.
brake pads worn out before 20,000 miles; rotors warped or scored under 60,000 miles; squealing or grinding brakes; brake replacement required multiple times under warranty; brake pedal pulsation; longer stopping distances
Premature brake wear standing alone is unlikely to support a Song-Beverly claim unless the vehicle required three or more brake-related repair visits that cumulatively resulted in more than 30 days out of service. However, if combined with other documented defects on the same vehicle, the brake wear visits contribute to the cumulative out-of-service day count and strengthen the overall claim. Counsel should review all repair orders.
Brake pad and rotor replacement; repeated under warranty if onset is early enough. Aftermarket pads with a softer compound may reduce wear rate.
remedy available
Nissan North America, Inc. (Nissan) is recalling certain 2016-2019 Nissan Sentra vehicles. The brake light switch may become contaminated, preventing the circuit from closing and the brake lights from illuminating.
remedy available
Nissan North America, Inc. (Nissan) is recalling certain 2018-2019 Nissan Altima, Armada, Frontier, Kicks, Leaf, Maxima, Murano, NV, NV200, Pathfinder, Rogue, Rogue Sport, Sentra, Titan, Titan Diesel, Versa Note and Versa Sedan vehicles, as well as Infiniti Q50, Q60, QX30 and QX80 vehicles. Additionally included are 2019 Nissan GT-R and Taxi and Infiniti QX50, QX60, Q70, Q70L vehicles. The back-up camera and display settings can be adjusted such that the rear view image is no longer visible and the system will retain that setting the next time the vehicle is placed in reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."
remedy available
Nissan North America, Inc. (Nissan) is recalling certain 2017 Nissan NV200, Sentra, NV3500 Van, NV3500 Bus, NV200 Taxi, NV1500, NV2500 Van, Chevrolet City Express, 2017-2018 Frontier, Versa Note, and Versa Sedan vehicles that have a mechanical (physical) key ignition system. In these models, over time, the weight on the key ring and road conditions or some other jarring event may cause the ignition switch to move out of the run position to the accessory position, turning off the engine.
remedy available
Nissan North America, Inc. (Nissan) is recalling certain 2015-2017 LEAF and 2014, 2016 and 2017 Sentra vehicles. Due to a manufacturing error within the air bag inflators, the passenger frontal air bag may not properly deploy in the event of a crash.
remedy available
Nissan North America, Inc. (Nissan) is recalling certain model year 2016 Sentra vehicles manufactured April 11, 2016, through April 26, 2016. The engine room harness may have a terminal pin too large to maintain a connection with the Engine Control Unit (ECU).
remedy available
Nissan North America, Inc. (Nissan) is recalling certain model year 2016 LEAF vehicles manufactured February 24, 2016, to March 23, 2016, and Sentra vehicles manufactured February 9, 2016, to March 4, 2016. The wiring harness connector may disconnect from the dual-stage passenger air bag.
remedy available
Nissan North America, Inc. (Nissan) is recalling certain model year 2013-2016 Sentra vehicles manufactured June 4, 2012, to April 9, 2016. The front passenger seat belt bracket may become deformed if it is used to secure a Child Restraint System (CRS). The deformed seat bracket may cause the Occupant Classification System (OCS) to incorrectly classify the installed CRS, resulting in the front passenger air bag to not be turned off as designed when a CRS is in the seat.
open
Nissan North America, Inc. (Nissan) is recalling certain model year 2016-2017 Nissan Maxima, 2013-2016 Nissan Altima, NV200, LEAF, Sentra, and Pathfinder, 2014-2016 Nissan NV200 Taxi, Infiniti QX60, QX60 Hybrid, and Q50 Hybrid, 2014-2017 Nissan Rogue and Infiniti Q50, 2015-2016 Nissan Murano, Murano Hybrid, and Chevrolet City Express, 2014-2015 Nissan Pathfinder Hybrid, and 2013 Infiniti JX35 vehicles. In these vehicles, the front seat passenger Occupant Classification System (OCS) may incorrectly classify an adult passenger as a child or classify the seat as empty despite it being occupied. As a result, the passenger frontal air bag may be turned off and not deploy in the event of a crash.
remedy available
Nissan North America, Inc. (Nissan) is recalling certain model year 2013-2015 Altima and Pathfinder vehicles, 2013-2014 Nissan Sentra vehicles, 2013 Infiniti JX35 vehicles, 2014-2015 Infiniti QX60 vehicles and 2014 Infiniti QX60 Hybrid vehicles. The affected vehicles received an incorrect occupant classification system (OCS) control unit during a repair. These OCS control units may incorrectly classify the front passenger seat as empty, when it is occupied by an adult.
remedy available
Nissan North America, Inc. (Nissan) is recalling certain model year 2015 Nissan Rogue vehicles manufactured June 9, 2015, to June 10, 2015, and 2015 Nissan Sentra and Versa Note vehicles manufactured June 5, 2015, to June 13, 2015. In the affected vehicles, the driver side front and rear doors may not fully latch. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 206, "Door Locks and Door Retention Components."
remedy available
Nissan North America, Inc. (Nissan) is recalling certain model year 2013-2014 Altima, LEAF, Pathfinder, and Sentra, model year 2013 NV200 (aka Taxi) and Infiniti JX35 and model year 2014 Infiniti Q50 and QX60 vehicles. In the affected vehicles, the occupant classification system (OCS) software may incorrectly classify the passenger seat as empty, when it is occupied by an adult.
Every item below comes from this vehicle's documented defects. The more you recognize, the more a free case review is worth your time.
California's Song-Beverly Consumer Warranty Act is one of the strongest lemon laws in the nation. It covers any new vehicle sold or leased in California with a defect under the manufacturer's warranty. If Nissan cannot repair the defect in a reasonable number of attempts, you are entitled to a replacement vehicle or a full refund — including down payment, monthly payments, and registration fees, less a 'use' deduction for miles driven before the first repair visit.
The law presumes a lemon when: (a) the manufacturer made four or more attempts to fix the same defect; (b) two attempts were made for a defect likely to cause death or serious injury — which applies to the Sentra's airbag non-deployment, brake light failure, and AEB phantom braking; or (c) the vehicle was out of service for more than 30 cumulative days for warranty repairs.
Nissan's voluntary CVT extension (7yr/84k mi) is a manufacturer's warranty under Song-Beverly — the same rules apply whether the coverage is original or extended. Three failed CVT repairs within that window may entitle you to a buyback.
The brake light switch recall (21V135000) and five OCS airbag campaigns are documented manufacturer admissions that these vehicles did not conform at delivery. Owners who returned for the same safety defect after a recall remedy failed have a strong non-conformity argument. Have your repair orders reviewed by a lemon-law attorney — it costs you nothing to find out where you stand.
“Could not duplicate” doesn't mean the defect isn't real. Here's exactly what to do to protect a potential California lemon-law claim.
Document the moment it happens. Photos, video, and screenshots of any warning lights — with the date and the mileage.
Get a repair order every visit — even “found nothing.” That paperwork is the foundation of a claim.
Check your VIN at nhtsa.gov/recalls. Note any recall that has no available remedy yet.
Track your out-of-service days. California law counts the cumulative days your vehicle spends in the shop.
Keep loaner & rental records. Alternate-transport paperwork during long repairs matters.
Save everything in one place. Symptoms, dates, repair orders, and every repeat visit — the intermittent ones especially.
The Sentra B17's most common defects — CVT shudder and AEB phantom braking — are intermittent, which means the dealer's 15-minute test drive almost always comes back clean. Here is what to do:
1. Document every episode immediately. Note date, mileage, road conditions, temperature, and exactly what the car did: 'CVT shuddered for 3 seconds leaving a red light, RPMs hit 4,000, car barely moved.' Specificity is what makes repair orders usable in a Song-Beverly case.
2. Capture video. Mount your phone to the dash. A 20-second clip of the tach jumping while the car crawls is worth more than any verbal description. NHTSA accepts video with complaint submissions.
3. File an NHTSA complaint at NHTSA.gov/report-a-safety-problem before your dealer visit. Your ODI number becomes part of the public record.
4. Request a loaner at drop-off. California Civil Code §1793.2 requires the manufacturer to provide a replacement vehicle for extended repairs. Get it in writing on the repair order — every loaner day counts toward your out-of-service total.
5. Ask for an extended cold-to-warm road test (30 minutes minimum). The JF015E shudder typically appears only after fluid reaches operating temperature. Request that the tech check CVT fluid condition, TCM codes, and MAF live data explicitly.
6. Collect every repair order, including 'no defect found' tags. An NDF visit counts as a repair attempt under Song-Beverly if you presented the vehicle for the same symptom — the law does not require the dealer to find the problem.
7. For brake light switch visits: have someone stand behind the car while you press the brake pedal, and ask the service writer to note in writing whether the lights illuminate. If they don't, that is documented proof regardless of scan-tool results.
The 2014-2019 Nissan Sentra B17 is a car that became defined by its worst component. The Xtronic CVT JF015E is not a borderline defect or a fringe complaint — it generated hundreds of NHTSA powertrain complaints every model year and cost owners thousands of dollars in out-of-warranty repairs. Nissan knew: the 7-year/84,000-mile powertrain extension is as close to an admission as a manufacturer ever makes without issuing a recall. Layered on top of that is a genuinely unusual airbag recall history — five separate OCS campaigns on the same platform — that demonstrates repeated failure to permanently fix a safety-critical system. For California owners who lived through multiple dealer visits for any of these defects, Song-Beverly exists precisely for this situation.
— The Margarian Law team
If your 2014-2019 Nissan Sentra has been to the dealer multiple times for a CVT that shudders or loses power, an airbag warning light that keeps coming back, or a brake light switch that failed after the recall repair, you may have options. Margarian Law has handled thousands of lemon-law cases and offers a free case review — no cost to you unless you win.
The B17 Sentra uses a Jatco JF015E Xtronic CVT that has a well-documented tendency to shudder, jerk, and hesitate under acceleration — particularly when the transmission fluid degrades or the belt and pulley assemblies begin to wear. You may feel a vibration or lurch at low speeds, or notice that the engine revs climb while the car barely accelerates. In severe cases the car enters limp mode, capping speed at 5-15 mph. Nissan extended the CVT powertrain warranty to 7 years or 84,000 miles for qualifying B17 Sentras, acknowledging the issue's prevalence. If your Sentra is within that window and the dealer has made two or more unsuccessful CVT repair attempts, contact a California lemon-law attorney — the vehicle may qualify for a refund or replacement under Song-Beverly.
This is a known defect covered by NHTSA Recall 21V135000 (Nissan campaign PM971). Silicon off-gassing from grease used near the stop lamp switch contaminates the switch contacts, preventing the brake light circuit from closing. On push-button-start models, the same switch failure prevents the car from starting because the system cannot confirm the brake pedal is depressed. Nissan's recall remedy involves replacing the switch and installing a protective grommet. However, owner complaints document the switch failing again within months of the recall repair — sometimes requiring a third or fourth replacement. If your dealer repaired this issue under the recall and the lights have gone dark again, that repeat failure is exactly the type of non-conformity Song-Beverly covers. Keep every repair order from each visit.
Nissan issued five airbag/OCS recall campaigns on the B17 Sentra: 14V138000, 15V681000, 16V242000, 16V244000, and 17V253000 — all targeting the same occupant classification system that controls passenger airbag deployment. If your SRS light returned after a recall repair, the remedy may have been incomplete. Under California's Song-Beverly Act, a passenger airbag that fails to deploy is a safety defect requiring only two repair attempts before a buyback or replacement is owed. Nissan cannot claim ignorance — five manufacturer campaigns document the problem on the same platform. Gather every recall repair order and have a lemon-law attorney review them.
Nissan voluntarily extended the CVT powertrain warranty on certain B17 Sentras to 7 years or 84,000 miles — not a formal recall, which means many owners were never notified. To check whether your vehicle qualifies, contact Nissan consumer affairs at 1-800-647-7261 with your VIN. Under California's Song-Beverly Act, this voluntary extension counts as a manufacturer's express warranty: if the CVT required three or more repair attempts within that extended period without a lasting fix, the lemon-law presumption applies and you may be entitled to a buyback or replacement.
Yes — this is phantom braking, a documented owner-reported issue on MY2018-2019 Sentras with Nissan's Intelligent Emergency Braking. The forward radar triggers unwarranted braking in response to water spray, reflected sunlight, or nothing visible at all. The system has no driver-disable function. Dealers recalibrate the radar sensor, but owners report false activation returning within months. Phantom braking at highway speeds can cause a rear-end collision. Under California's Song-Beverly Act, two or more failed repair attempts for a safety defect may entitle you to a vehicle replacement or refund. File an NHTSA complaint at NHTSA.gov before your next dealer visit.
Under Song-Beverly, the lemon-law presumption applies when Nissan has made four or more attempts to fix the same defect — or when the vehicle was out of service for 30 or more cumulative days. For a safety defect (CVT stalling at speed, airbag failure, brake light switch failure), the threshold drops to just two attempts. Each dealer visit for CVT shudder, hesitation, or loss of power — even a 'could not duplicate' visit — counts as a repair attempt if you presented the car for the same symptom. You do not need the dealer to find a problem; you only need to have brought it in. Gather every repair order and loaner authorization. A California lemon-law attorney can review your history at no cost.
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