Engine Internal Failure Risk - Stall, Power Loss, or Fire
engine knocking; engine stalls; sudden loss of power; check engine light; engine failure recall
10 recalls: engine, fuel pump, transmission, airbags. If your 2015-2020 Acura TLX won't stay repaired, California lemon law may entitle you to a buyback.
You chose the Acura TLX because it promised the sweet spot between sport-sedan dynamics and luxury-brand reliability. The badge said Acura. The brochure said precision. But for thousands of first-generation TLX owners — covering every model year from 2015 through 2020 — that promise has been tested by a record that reads more like a case study in deferred accountability.
In the six years this TLX generation was sold, Acura issued ten separate federal safety recalls covering defects in the fuel pump (three successive campaigns), the engine connecting rod bearings, the transmission parking pawl, the transmission wire harness, the airbag occupant sensor, the timing belt, and even the vehicle's own safety certification label. That is not a normal recall record for a luxury sedan in this class.
Behind the recall headlines, owners dealt with two additional layers of trouble: documented transmission shift-quality defects addressed by Acura's own technical service bulletins but never fully resolved for every owner, and an engine-failure crisis so significant that NHTSA opened a follow-on investigation in 2025 for engine failures beyond what the 2023 connecting-rod recall covered — another 3,000-plus documented failures. A NHTSA engineering analysis opened in March 2025 also covers a failure of the auto idle stop system to restart the engine at traffic signals, affecting the entire 2015-2025 TLX lineage.
This is not a vehicle with one or two known quirks. It is a vehicle with a documented pattern of powertrain, safety-system, and transmission defects — many of them manufacturer-acknowledged — that have cost owners repair bills, rental cars, months without transportation while waiting for recall parts, and in some cases, their safety. If your TLX has been to the dealer multiple times for any of these issues, California's lemon law may give you more rights than you know.
The issues owners report most, ranked by severity — each one verified against a cited NHTSA source.
engine knocking; engine stalls; sudden loss of power; check engine light; engine failure recall
warning light; recall notice; repeated dealer repair
transmission shifts unexpectedly; hesitation; harsh shift; transmission warning
transmission shifts unexpectedly; hesitation; harsh shift; transmission warning
engine stalls while driving; vehicle will not start; loss of power; fuel pump recall
engine knocking; engine stalls; sudden loss of power; check engine light; engine failure recall
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.
warning light; recall notice; repeated dealer repair
Incorrect GVWR and GAWR values on the vehicle's certification label could lead an owner to overload the vehicle, increasing the risk of tire failure at speed. Acura acknowledged the error via recall 14V613, making this a manufacturer-confirmed safety non-conformity. Under Song-Beverly, a safety recall that requires a dealer visit and the dealer fails to complete the remedy within 30 days counts as a repair attempt, contributing toward the lemon threshold even for an administrative label fix.
Honda will notify owners, and dealers will install a corrected certification label, free of charge. The recall is expected to begin on October 21, 2014. Owners may contact Honda customer service at 1-800-382-2238. Honda's number for this recall is JK6.
transmission shifts unexpectedly; hesitation; harsh shift; transmission warning
Recall 14V779 addresses a failure of the transmission parking pawl to properly engage Park, risking unintended vehicle rollaway — a direct crash risk documented in three injury reports to NHTSA (drivers struck by their own rolling vehicles). A safety defect this serious, confirmed by formal recall, demonstrates the vehicle does not conform to the manufacturer's express safety warranty under Song-Beverly Cal. Civ. Code §1793.2(d). If a TLX was presented to the dealer for this issue and the repair was delayed beyond 30 calendar days, California's lemon-law presumption may apply.
Honda will notify owners, and dealers will inspect and replace the transmission if necessary, free of charge. The recall began January 30, 2015. Owners may contact Honda customer service at 1-310-783-2000. Honda's number for this recall is JM8.
transmission shifts unexpectedly; hesitation; harsh shift; transmission warning
Recall 16V640 covers a wire harness defect that causes the ZF 9-speed transmission to unexpectedly shift into neutral while driving — effectively cutting power to the wheels at any speed. This loss-of-motive-power defect contributed to at least 10 NHTSA-reported injuries. Under Song-Beverly, a vehicle that loses drive at highway speed is substantially impaired for safe use; owners who brought their TLX in for neutral-shift complaints before the recall repair was available have documented repair attempts that count toward lemon-law eligibility.
Acura has notified owners, and dealers will, based on the automatic transmission serial number, update the transmission software to prevent the transmission from shifting into neutral due to a faulty crimp, free of charge. The recall began January 13, 2017. Owners may contact Acura Client Relations
engine stalls while driving; vehicle will not start; loss of power; fuel pump recall
Recall 19V060 addresses a fuel pump degradation that causes engine stall at highway speed with no warning — a direct crash risk that Consumer Reports flagged as a high-urgency recall. The remedy required both an ECU software update and, in confirmed stall cases, physical pump replacement. Owners who experienced stalling prior to recall completion, or who required multiple dealer visits because the software-only fix proved insufficient, have repair visit documentation that supports a Song-Beverly lemon-law claim.
Honda will notify owners, and dealers will update the fuel injection engine control unit (FI-ECU) software and, if necessary, replace the fuel pump, free of charge. The recall began March 25, 2019. Owners may contact customer service at 1-888-234-2138. Acura's recall number for this recall is P3W. H
engine knocking; engine stalls; sudden loss of power; check engine light; engine failure recall
Recall 19V298 covers timing belt tooth separation on 2019 TLX models — a failure that can cause sudden engine stall with no warning. Loss of engine power on a highway or intersection creates an immediate crash risk. If an owner's 2019 TLX stalled before the recall was remedied, or if belt replacement parts were unavailable causing an extended wait period, that experience — documented on a dated repair order — satisfies both the 'safety defect' and the 'reasonable repair attempt' prongs of California Song-Beverly eligibility.
Honda will notify owners, and dealers will inspect the vehicle and replace any affected timing belt free of charge. Vehicles receiving a replacement timing belt will also have the engine inspected and any damaged components will be replaced for free. The recall began June 7, 2019. Honda owners may c
engine stalls while driving; vehicle will not start; loss of power; fuel pump recall
Recall 21V215 expanded the 19V060 fuel pump campaign to cover 2019-2020 TLX models whose pump failure risk was not addressed in the earlier recall. Owners who experienced stalling events between the 19V060 and 21V215 campaigns — a gap of roughly two years — were driving a vehicle with a known safety defect the manufacturer had not yet remedied. Under Song-Beverly, stalling events before the recall fix is applied constitute a non-conformity that substantially impairs safe use, regardless of whether a formal repair order was written on that date.
Honda will notify owners, and dealers will replace the fuel pump assembly, free of charge. Owner letters were mailed May 18, 2021. Owners may contact Honda customer service at 1-888-234-2138. Note: This recall is an expansion of recall 20V-314.
engine knocking; engine stalls; sudden loss of power; check engine light; engine failure recall
Recall 23V751 covers a manufacturing defect in the connecting rod bearings of the J35 V6 that can cause engine seizure, stall, or fire while driving — one of the most severe defect categories in NHTSA's taxonomy. This is one of the rare cases where Catastrophic severity is appropriate: NHTSA and Acura both acknowledged fire risk, and recall parts unavailability left many TLX owners driving unsafe vehicles for months post-notification. Under Song-Beverly, extended recall part unavailability (30+ calendar days) independently triggers lemon-law presumption eligibility, separate from the repair-attempt count.
Dealers will inspect and repair, or replace the engine as necessary, free of charge. Owner letters were mailed March 28, 2024. 2016-2017 Acura MDX owner letters were mailed November 1, 2024. 2016-2020 Acura MDX owner letters are expected to be mailed in mid-December 2024. Honda began mailing owner n
engine stalls while driving; vehicle will not start; loss of power; fuel pump recall
Recall 23V858 is a third-wave expansion of the low-pressure fuel pump campaign, extending coverage to virtually the entire 2015-2020 TLX lineup. By this point, Acura had issued three separate recall actions for the same root-cause defect (sodium contamination of the fuel pump). Owners whose vehicles were not covered by 19V060 or 21V215 but did fall under 23V858 may have been driving with an unaddressed safety defect for years. The repeated expansion of this recall — covering the same symptom (engine stall) — demonstrates manufacturer awareness of an unresolved systemic defect, strengthening a lemon-law argument for owners who experienced stalling before each successive recall.
Dealers will replace the fuel pump module, free of charge. Owner letters were mailed September 6, 2024. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are KGC and KGD. This recall is an expansion of NHTSA recall numbers 21V-215 and 20V-314.
airbag warning light; passenger airbag may not deploy; SRS warning; occupant detection fault
Recall 24V064 addresses a seat weight sensor defect that can cause the front passenger airbag to deploy incorrectly for small or child occupants — a direct injury risk in a crash. Because the occupant classification system (OCS) determines whether the airbag fires at all for light passengers, a faulty sensor creates an unpredictable airbag suppression failure. Under Song-Beverly, any safety recall tied to the airbag system — California's courts have treated airbag-related defects as serious safety impairments — counts as a qualifying non-conformity. Owners with children or small-stature passengers who drove a 2020 TLX during the sensor defect window should document their vehicles' recall status.
Dealers will replace the seat weight sensors, free of charge. Owner notification letters were mailed March 28, 2024, October 18, 2024, and August 2025. This is a phased recall. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for these recalls are XHP and VHQ.
airbag warning light; passenger airbag may not deploy; SRS warning; occupant detection fault
Recall 26V332 expands the 24V064 occupant classification sensor campaign to cover 2018-2020 TLX models, confirming that the circuit board base-material defect (introduced after a supplier's natural disaster) was more widespread than initially remedied. Owners of 2018-2020 TLX vehicles who may have had the airbag suppression system silently malfunction during the years before this expansion recall are in the same Song-Beverly posture as 24V064 owners: they drove a vehicle whose safety system did not conform to Acura's express warranty, documented by federal recall action.
Dealers will replace the seat weight sensors, free of charge. Owner notification letters are expected to be mailed July 6, 2026. Owners may contact Honda's customer service at 1-888-234-2138. Honda's numbers for this recall are BOL, WO9, OOA, WOM, XOH, NOC, POD, BOE, UOF, POB, EOG, AOI, QO8, TOJ, DO
transmission shudders or jerks when accelerating from a stop; hard bump or clunk when coming to a stop; transmission slips during 1st to 2nd gear upshift; rough jerking between gears when cold; RPM flares or drops unexpectedly on 2-3 upshift; dealer cannot duplicate intermittent jerk
Under California's Song-Beverly Act, a defect that substantially impairs use or value and persists after a reasonable number of repair attempts triggers repurchase or replacement eligibility. Acura acknowledged this DCT condition with at least two formal TSBs (15-021 and 17-015) yet owners routinely report the same harsh-shift symptom returning after repeated dealer software updates. Multiple failed repair attempts for the same driveability defect — each documented on a dated repair order — constitute the core Song-Beverly pattern.
PGM-FI/AT software update (Repair Procedure A per TSB 17-015); if symptom persists, full DCT clutch break-in procedure (Repair Procedure B). Some owners require valve body or clutch pack replacement after repeated software-only attempts fail.
jerky or slamming upshift during steady acceleration; transmission hesitates before engaging next gear; abrupt downshift jolt when decelerating; shift-to-park warning message illuminates unexpectedly; transmission unexpectedly drops to neutral at highway speed; multiple dealer software updates provide only temporary relief
TSB 20-015 confirms Acura's awareness that the ZF 9HP produces harsh shifts across all 2015-2020 TLX V6 models, yet the bulletin itself acknowledges the fix requires 500 miles of relearning — meaning any rapid recheck is premature. Owners who return within days of a software-only repair and receive a 'cannot duplicate' response have strong grounds: the TSB describes exactly why the symptom is intermittent and difficult to replicate under short test-drive conditions, supporting a Song-Beverly claim where the dealer's repair order records the same complaint on multiple visits.
TCM software update per TSB 20-015 (J2534 Rewrite); 500-mile relearn period required. For earlier harness-related neutral shifts, recall 16V640 wire harness repair. Persistent cases may require valve body inspection or full transmission replacement.
engine temperature gauge rising unexpectedly; coolant looks brown or milky when checked; poor or sluggish transmission shifting quality; chirping or squealing noise during 3rd to 4th gear shift; transmission fluid looks contaminated with brownish coolant residue
Acura extended the warmer warranty to 10 years / unlimited miles, acknowledging that the original factory component was defective. If an owner's TLX was returned to the dealer with overheating or shift-quality complaints and the warmer was not inspected or replaced on the first visit, subsequent visits for the same symptom satisfy the Song-Beverly repeat-repair pattern. Coolant/ATF contamination causing transmission failure is a substantial impairment of vehicle use — a core element of the California lemon-law claim.
Pressure-test the transmission warmer. If it fails, replace under Acura's extended warranty (10 years / unlimited miles per TSB 17-027). Flush and replace both ATF and engine coolant. In severe contamination cases, transmission internal components may also require replacement.
engine does not restart when foot lifted off brake after idle stop; car stalls in intersection with no warning; push-button start must be used to manually restart engine; idle stop malfunction light illuminates; repeated failures even after TSB software update at dealership; failure occurs most commonly in hot weather or at high mileage
NHTSA Engineering Analysis EA25004 (March 2025) formally identifies the auto idle stop restart failure as a safety defect under investigation, documenting 4 crashes and 2 injuries. An engine that stalls in an intersection and cannot be restarted through normal operation constitutes a safety-related defect under Song-Beverly. Owners who returned to the dealer for repeated idle-stop failures after Honda's TSB remedy was applied have a strong argument that the manufacturer's repair attempts were unsuccessful — a direct trigger for California lemon-law repurchase eligibility.
Stage 1: PGM-FI software update (Honda TSB 23-008 / 23-009). Stage 2: Replace starter assembly, starter relays, and perform valve adjustment if Stage 1 does not resolve. Owners whose vehicles fail to restart after both stages are candidates for escalation to American Honda regional representation.
car suddenly slams on the brakes with no obstacle ahead; forward collision warning activates without a vehicle or object present; collision mitigation system unavailable message on dashboard; all AcuraWatch features (LKAS, adaptive cruise, road departure) disable simultaneously; front camera shows error or requires $2,000 replacement; CMBS warning light on after normal driving
Unexpected automatic braking on an open highway constitutes a safety defect that substantially impairs safe operation of the vehicle. Under Song-Beverly, a safety-related defect that cannot be repaired within a reasonable number of attempts — particularly when the manufacturer's only guidance is to disable the feature — supports a lemon-law claim. Owners should document every CMBS false-activation incident with dates, mileage, and dealer repair orders noting the complaint, even when the dealer cannot duplicate the event.
Dealer CMBS radar and camera recalibration; if camera module is failed, replace forward camera assembly (customer cost ~$1,500-$2,000 out of warranty). Software updates to CMBS/ADAS control unit may reduce false-activation frequency. Owners advised to disable CMBS if activations become dangerous — a workaround, not a repair.
AcuraLink app shows vehicle offline; remote start via app no longer works; automatic collision notification system inactive; vehicle tracking and stolen vehicle locator disabled; Wi-Fi hotspot functionality lost; navigation traffic data updates stopped
While the 3G shutdown itself is a carrier-driven event, Acura represented these vehicles as equipped with connected safety features including Automatic Collision Notification at time of sale. Permanent loss of a marketed safety feature — particularly one tied to emergency dispatch — may support a claim of non-conformity to warranty or implied merchantability under California law. Cases are fact-specific; owners who were charged for AcuraLink subscriptions that became worthless before the subscription period expired have a stronger basis.
Dealer-installed 4G/LTE hardware retrofit (cost varies; Acura offered subsidized pricing for a limited time). Without the retrofit, all AcuraLink connected features remain permanently inoperative. New AcuraLink subscription required after hardware upgrade.
abnormal knocking sound from engine at startup or under load; engine suddenly loses power while driving; engine seizes or stalls with no warning; oil pressure warning light illuminates; engine failure after recall repair was completed on replacement engine
NHTSA probe RQ25 documents 3,012 engine failure instances and 7 reports of crashes or fires involving the J35 V6 in vehicles not fully addressed by recall 23V751. An engine that seizes or stalls at highway speed is a safety defect under Song-Beverly — and one that Acura's own recall history shows the manufacturer was aware of in related form. Owners of 2018-2020 TLX V6 models who experienced engine failure outside the 23V751 remedy window should document every dealer visit and any denial of warranty coverage, as NHTSA's ongoing investigation strengthens the legal argument that this is a manufacturer-known defect.
Engine disassembly and connecting rod bearing inspection (per NHTSA recall 23V751 protocol for vehicles within that recall scope). For vehicles outside 23V751 scope, no recall remedy is yet available; owners must escalate to Acura Customer Service and document all engine noise complaints with dated repair orders.
remedy available
Honda (American Honda Motor Co.) is recalling certain 2018-2021, 2023 Acura TLX, 2019-2024 RDX, 2017-2020, 2022-2026 MDX, 2017-2021, 2023, 2025 Honda Ridgeline, 2017-2022 Pilot, 2019-2021 Passport, 2018-2026 Odyssey, 2019-2022 Insight, 2019-2021 HR-V, 2018-2020 Fit, 2020-2022 CR-V Hybrid, 2017-2022 CR-V, 2017-2018, 2021 Civic Type R, 2017-2021 Civic hatchback, 2016-2020 Civic coupe, 2016-2022 Civic, 2017-2022 Accord Hybrid, and 2016-2022 Accord vehicles. The front passenger seat weight sensor may crack and short circuit, which can cause the air bags to deploy unintentionally during a crash.
remedy available
Honda (American Honda Motor Co.) is recalling certain 2020-2022 Pilot, Accord, Civic sedan, HR-V, Odyssey, 2020 Civic coupe, Fit, 2021-2022 Civic hatchback, 2021 Civic Type R, Insight, 2020-2021 CR-V, CR-V Hybrid, Passport, Ridgeline, Accord Hybrid, 2020 Acura MDX, 2022 Acura MDX, 2020-2022 Acura RDX, and 2020-2021 Acura TLX vehicles. The front passenger seat weight sensor may crack and short circuit, failing to suppress the air bag as intended.
remedy available
Honda (American Honda Motor Co.) is recalling certain 2013-2023 Honda Accord, Civic Coupe, Civic Sedan, Civic Hatchback, Civic Type R, CR-V, HR-V, Ridgeline, Odyssey, Acura ILX, MDX, MDX Hybrid, RDX, RLX, TLX, 2019-2022 Honda Insight, Passport, 2020 Honda CR-V Hybrid, 2018-2019 Honda Clarity PHEV, Fit, and 2015-2020 Honda Accord Hybrid, Pilot, Acura NSX vehicles. The fuel pump inside the fuel tank may fail.
remedy available
Honda (American Honda Motor Co.) is recalling certain 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2016 and 2018-2019 Pilot, 2017 and 2019 Ridgeline, and 2018-2019 Odyssey vehicles. Due to a manufacturing error, the connecting rod bearing in the engine may wear and seize, damaging the engine.
remedy available
Honda (American Honda Motor Co.) is recalling certain 2019-2020 Acura MDX, MDX Sport Hybrid, RDX, TLX, Honda Accord, Civic Hatchback, Insight, 2019 Acura ILX, Honda Accord Hybrid, Civic Coupe, Civic Coupe Si, Civic Sedan, Civic Sedan Si, Civic Type R, Fit, HR-V, Odyssey, Passport, Pilot and Ridgeline, and 2018-2019 CR-V vehicles. The low-pressure fuel pump inside the fuel tank may fail.
remedy available
Honda (American Honda Motor Co.) is recalling certain 2018-2019 Acura MDX and Honda Pilot vehicles and 2019 Acura RLX, RLX Sport Hybrid, TLX and Honda Odyssey and Ridgeline vehicles. The timing belt teeth may separate from the belt.
remedy available
Honda (American Honda Motor Co.) is recalling certain 2016-2018 Acura MDX, 2015-2019 Acura TLX and 2015-2017 Honda Accord vehicles, equipped with a 3.5L V6 engine. Particulates in fuel may adhere to the internal components of the fuel pump, reducing its performance.
remedy available
Honda (American Honda Motor Co.) is recalling certain model year 2015 Acura TLX 2WD and 4WD vehicles. In the affected vehicles, the transmission wire harness connections may have insufficient crimps, and, as a result, the transmission may unexpectedly shift to neutral.
remedy available
American Honda Motor Co. (Honda) is recalling certain model year 2015 Acura TLX V6 2WD vehicles manufactured July 14, 2014, to November 12, 2014, and certain 2015 TLX V6 SH-AWD vehicles manufactured August 26, 2014, to November 10, 2014. The automatic transmission parking pawl may become contaminated or the park rod may become dislodged or broken. This may prevent the transmission from shifting into the Park position.
remedy available
American Honda Motor Co. (Honda) is recalling certain model year 2015 Acura TLX AWD vehicles manufactured August 26, 2014, to September 20, 2014. The affected vehicles may have incorrect values for the Gross Vehicle Weight Rating (GVWR) and Gross Axle Weight Rating (GAWR) front and rear printed on the safety certification label. As such, the vehicles do not conform to Part 567, "Certification."
Every item below comes from this vehicle's documented defects. The more you recognize, the more a free case review is worth your time.
Under California's Song-Beverly Consumer Warranty Act (Cal. Civ. Code §1790 et seq.), consumers who buy or lease a new vehicle may be entitled to a repair, replacement, or refund if the vehicle has a defect that substantially impairs use, value, or safety and cannot be fixed in a reasonable number of attempts. General information only — not legal advice; no attorney-client relationship. Law as of 2026.
WHAT MAY QUALIFY: For the 1st-gen TLX — repeated fuel pump stalling, connecting rod bearing failures (recall 23V751 or NHTSA probe RQ25), DCT or 9-speed shift defects recurring after multiple software updates, idle stop failures leaving the vehicle stalled in traffic (NHTSA EA25004), and CMBS false braking. A safety defect under an open investigation may qualify even without a formal recall.
THE PRESUMPTION: Within the first 18 months or 18,000 miles, California law presumes a lemon if the manufacturer gets (a) two or more attempts for a death-or-injury-risk defect, or (b) four or more attempts for any other defect. Out of service 30+ cumulative calendar days for warranty repairs is an independent path. Claims may still succeed outside these thresholds.
REMEDY: Full buyback (price + taxes + fees minus mileage offset) or comparable replacement. Attorney's fees recoverable from the manufacturer — no out-of-pocket cost to you.
“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 TLX's worst defects — DCT shudder, ZF 9-speed jerk, idle stop failure, CMBS phantom braking — are intermittent. A cold-morning transmission bump will not reproduce on a warm test drive. Here is what to do when the repair order says 'unable to replicate':
1. WRITE IT DOWN IMMEDIATELY. Date, mileage, outside temperature, road type, and exactly what happened. A contemporaneous note is far more credible than memory months later.
2. GET A REPAIR ORDER FOR EVERY VISIT. Under Song-Beverly, each visit where you present the vehicle for a defect counts as a repair attempt — even if nothing is fixed. Never accept a verbal 'we looked at it.' Demand a dated written repair order.
3. CITE THE TSB BY NUMBER. Ask the dealer to apply TSB 17-015 (4-cyl DCT) or TSB 20-015 (V6 9-speed). TSB 20-015 specifically notes the fix requires 500 miles of relearning — meaning any 'road test passed' notation on a repair order taken immediately after a software update does not confirm a successful repair. Use that language to your advantage.
4. REQUEST STAR CASE ESCALATION. After two failed visits, ask the dealer to open a STAR (Special Technical Assistance Resource) case with American Honda. A STAR case creates a written record at the manufacturer level and is key evidence in a lemon-law claim.
5. TRACK OUT-OF-SERVICE DAYS. California lemon law independently supports a claim if your vehicle is out of service for 30+ cumulative calendar days for warranty repairs. Count every day — including days waiting for recall parts.
6. NEVER ACCEPT 'DISABLE THE FEATURE' AS A REPAIR. If a dealer tells you to switch off AcuraWatch or auto idle stop to avoid the problem, get that advice in writing. Recommending you disable a safety feature is itself evidence of an unrepaired defect.
Ten federal recalls in six model years — including three successive waves for the same fuel pump defect and a connecting rod failure that forced a stop-sale order — is not a normal reliability record for a luxury sedan. The 2015-2020 TLX's defects span its most fundamental systems: engine, fuel delivery, transmission, and airbag occupant detection.
Two open NHTSA investigations as of mid-2026 (EA25004 for idle stop failures; RQ25 for additional V6 engine failures beyond the 23V751 recall scope) signal that regulators do not consider this vehicle's defect profile closed. Owners who have returned to the dealer multiple times for stalling, engine noise, or transmission problems should consult a California lemon-law attorney before their warranty period expires — the evidence in their repair order file may already support a buyback claim.
— The Margarian Law team
If your Acura TLX has been to the dealer two or more times for engine problems, transmission shudder, stalling, or any of the issues covered by Acura's recalls — and the problem keeps coming back — you may have rights under California's lemon law. Margarian Law has handled thousands of lemon-law cases and offers a free case review. Your repair orders are the key. Gather them and call us today.
Yes — NHTSA recall 23V751 (November 2023) covers 2015-2020 Acura TLX V6 models for a connecting rod bearing manufacturing defect that can cause engine seizure, stall, or fire. Acura will inspect and, if needed, replace the engine at no charge. However, NHTSA opened an additional investigation (RQ25, August 2025) for engine failures beyond the recall scope, so owners of affected models should contact Acura even if their VIN was not included in 23V751.
Jerky or harsh shifts are a known issue on both the 8-speed DCT (4-cylinder models) and the ZF 9-speed (V6 models). Acura issued TSBs 15-021 and 17-015 for the DCT's cold-start shudder and hard stops, and TSB 20-015 for the V6 9-speed's harsh upshifts. The fix is a PCM or TCM software update at the dealer. If the symptom returns after one or more software updates, document each visit — repeated failed repairs may support a California lemon-law claim.
This is an identified defect under NHTSA Engineering Analysis EA25004 (opened March 2025), covering all 2015-2025 Acura TLX models. The auto idle stop system shuts the engine off at a stop but fails to restart when the driver lifts off the brake. NHTSA has logged 1,348 complaints including four crashes. Honda issued TSBs 23-008 and 23-009 (PGM-FI software update and starter replacement), but these fixes have not resolved the problem for all owners. If your TLX has been to the dealer for this issue and it recurred, document each visit for a potential Song-Beverly claim.
The first-generation Acura TLX (2015-2020) was subject to three separate NHTSA fuel pump recall campaigns: 19V060 (February 2019, 2015-2019 V6 models), 21V215 (2019-2020 expansion), and 23V858 (2023, further expansion covering nearly the full model run). All three address the same root cause — sodium contamination that degrades the low-pressure fuel pump and causes engine stall. If your TLX stalled before the recall was remedied, or if you needed multiple dealer visits for stalling, those repair records may support a lemon-law claim.
Whether a specific vehicle qualifies as a lemon depends on the individual owner's repair history, not the model alone. However, the 2015-2020 TLX has ten federal recalls and multiple open NHTSA investigations — including ongoing probes into engine failures and auto idle stop failures affecting all model years. Owners who have had two or more repair attempts for a safety-related defect, or four or more attempts for any other defect covered by warranty, may be entitled to a repurchase or replacement under California's Song-Beverly Act. A free case review with a qualified lemon-law attorney is the fastest way to find out if your situation qualifies.
Unexpected braking without an obstacle is a known complaint pattern across 2015-2020 TLX models equipped with AcuraWatch. Owners report the Collision Mitigation Braking System (CMBS) falsely activating due to guardrails, sun glare, or sensor misreads. The forward camera module can also fail, disabling all AcuraWatch features at once. Ask the dealer to recalibrate the CMBS radar and camera. If the problem recurs after repair, keep all dated repair orders — repeated failed fixes for a safety system defect can support a California lemon-law claim.