The 2020 Acura TLX is split between reliable naturally-aspirated engines (2.4L I4, 3.5L V6) and a problematic 2.0L turbo four that suffers catastrophic internal failures. The 9-speed automatic transmission has cooling and mount issues across all powertrains.
Symptoms: Metal shavings in oil, Knocking/ticking from engine block, Sudden loss of power, Check engine light with misfire codes, Oil consumption exceeding 1 qt per 1,000 mi
Fix: Complete engine rebuild or short block replacement required. Root cause appears to be piston ring land failure and bearing clearance issues. 20-30 labor hours for rebuild, 12-16 hours for short block swap. This is a known Honda/Acura J35/K20C issue affecting multiple platforms. Check for TSB updates and extended warranty coverage.
Estimated cost: $8,000-15,000
9-Speed Automatic Transmission Oil Cooler Failure
Common · medium severity
Typical onset: 50,000-90,000 mi
Symptoms: Transmission fluid leaking from cooler lines, Harsh shifts or delayed engagement, Transmission overheating warning, Pink fluid puddles under vehicle
Fix: External oil cooler develops leaks at crimped connections or internal fractures. Requires cooler replacement and sometimes line replacement. 3-4 labor hours. Flush and refill ATF after repair. This is a design weakness on ZF 9HP transmissions used across multiple manufacturers.
Estimated cost: $800-1,400
Transmission Mount Deterioration
Common · low severity
Typical onset: 60,000-100,000 mi
Symptoms: Clunking when shifting from Park to Drive, Vibration during acceleration, Excessive engine movement visible when revving in Park, Rough idle felt in cabin
Fix: Upper transmission mount rubber deteriorates prematurely, likely due to increased stress from 9-speed shift logic. Replacement is straightforward but requires supporting the transmission. 2-3 labor hours. Replace both upper and lower mounts simultaneously for best results.
Estimated cost: $400-700
Fuel Pump Recall-Related Failures
Occasional · high severity
Symptoms: No-start condition, Engine stalling while driving, Rough running/hesitation, Check engine light with fuel pressure codes, Loss of power under load
Fix: Affected by NHTSA recall for defective fuel pump impeller that can crack and cause pump failure. Even post-recall, some replacement pumps have failed. 2-3 labor hours for fuel pump replacement. Always verify recall completion status before purchase. In-tank pump access through rear seat area.
Estimated cost: $600-1,100
Front Passenger Occupant Classification System Malfunction
Occasional · medium severity
Symptoms: Passenger airbag warning light illuminated, Airbag off indicator when adult passenger present, Intermittent airbag light, SRS code for occupant sensor
Fix: Subject to recall for faulty occupant classification sensor in passenger seat. Sensor mat under seat cushion fails to properly detect passenger weight. Requires seat disassembly and sensor replacement. 1.5-2 labor hours. Recall work should be free at dealer, but verify completion.
Estimated cost: $400-800
Infotainment System Freezing and Dual-Screen Issues
Common · low severity
Symptoms: Upper screen freezes or goes black, Touch response lag on lower screen, System reboot required frequently, Backup camera delayed or frozen, Audio cutting out
Fix: Acura's dual-screen setup (upper display/lower touchpad) has software bugs and occasional hardware failures. Most issues resolved with software updates (1 hour). Persistent problems may require display module replacement (3-4 hours). Check for TSBs and software version before component replacement.
Estimated cost: $200-2,500
Owner tips
If buying a 2.0L turbo model, get a pre-purchase inspection with oil analysis and compression test — walk away from anything showing metal in oil
Service the 9-speed transmission fluid at 30k intervals instead of Honda's 60k recommendation to extend cooler and internal component life
Verify all fuel pump and airbag sensor recalls completed with documentation before purchase
The 3.5L V6 models are significantly more reliable than the 2.0T — worth the fuel economy trade-off
Buy the V6 or 2.4L versions with confidence; avoid the 2.0L turbo unless you enjoy expensive engine rebuilds before 100k miles.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
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AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION:FRONT PASSENGER · 24V064000
2024-02-01
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.
Consequence: An air bag that deploys unintentionally during a crash can increase the risk of injury.
Remedy: 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.
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.
Consequence: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.
Remedy: 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.
ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL · 23V751000
2023-11-13
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.
Consequence: A damaged engine may run improperly or stall while driving, increasing the risk of a fire, crash, or injury.
Remedy: 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 notification letters as of March 18, 2024. 2015-2016 Acura owner letters are expected to be mailed mid-December 2024, 2018 Acura TLX owner letters are expected to be mailed the end of March/early April 2024, 2019 Acura TLX owner letters are expected to be mailed mid-May 2024, 2020 Acura TLX owner letters are expected to be mailed mid-June 2024, and 2016-2020 Acura MDX owner letters are expected to be mailed January 27, 2025. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for these recalls are XG1 and GG0.
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.
Consequence: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.
Remedy: 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.
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