What are the most common Acura TLX problems?
According to Au7o's analysis of 780+ owner reports, the 2021 Acura TLX has 8 documented issues. The most frequently reported are: UB5 SH-AWD Transmission-to-Transfer Case (PTU) Spline Shear and Total AWD Loss, Brake Pedal Pivot Pin Improperly Secured, Pedal Shifts Out of Position (Recall 25V391000), In-Tank Low-Pressure Fuel Pump Impeller Failure Causing Stall Without Warning (Recalls 19V060000, 21V215000, 23V858000). Of these, 3 are rated critical and should be addressed promptly.
Is the Acura TLX reliable?
The 2021 Acura TLX has 8 known issues documented across 780+ owner reports. 3 issues are rated critical: UB5 SH-AWD Transmission-to-Transfer Case (PTU) Spline Shear and Total AWD Loss and Brake Pedal Pivot Pin Improperly Secured, Pedal Shifts Out of Position (Recall 25V391000) and In-Tank Low-Pressure Fuel Pump Impeller Failure Causing Stall Without Warning (Recalls 19V060000, 21V215000, 23V858000). 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 Acura TLX problems?
Repair costs for known Acura TLX issues range from $0 to $19,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, UB5 SH-AWD Transmission-to-Transfer Case (PTU) Spline Shear and Total AWD Loss, typically costs $5,000-$19,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2021-2024 Acura TLX UB5 SH-AWD Transmission-to-Transfer Case (PTU) Spline Shear and Total AWD Loss?
On the second-generation (UB5) TLX with SH-AWD, the splined interface between the 10-speed transmission output and the power transfer unit (transfer case) strips or shears. Owners describe a loud pop, bang or clunk from underneath, after which the car silently reverts to front-wh… Repairs typically run $5,000-$19,000. Severity: high.
What is the 2021-2025 Acura TLX Brake Pedal Pivot Pin Improperly Secured, Pedal Shifts Out of Position (Recall 25V391000)?
Second-generation TLX models were built with the brake pedal pivot pin not secured properly. The pin can migrate, letting the pedal shift out of its correct position on the pedal bracket. When that happens the driver's input no longer translates properly to the master cylinder an… Repairs typically run $0-$0. Severity: high.
What is the 2015-2023 Acura TLX In-Tank Low-Pressure Fuel Pump Impeller Failure Causing Stall Without Warning (Recalls 19V060000, 21V215000, 23V858000)?
The Denso in-tank low-pressure fuel pump module used across the first-generation TLX fails, causing hesitation, hard starting and complete engine stall - often at speed or mid-turn. Two distinct defect mechanisms were recalled: particulates in fuel adhering to internal pump compo… Repairs typically run $0-$1,200. Severity: high.
What is the 2021-2025 Acura TLX UB5 Adaptive Damper System Failure from Stroke Sensor Harness Corrosion?
Second-generation TLX models equipped with the Adaptive Damper System (A-Spec and Type S) suffer damper control failures traced to corrosion in the suspension stroke sensor wiring harnesses and to rear shock solenoid failures. The car throws an Adaptive Damper System warning and… Repairs typically run $350-$2,500. Severity: medium.
What is the 2018-2023 Acura TLX Front Passenger Occupant Classification Seat Weight Sensor Cracking and Short Circuit (Recalls 24V064000, 26V332000)?
The front passenger seat weight sensor that feeds the occupant classification system cracks and short circuits. Two separate campaigns cover TLX: 24V064000 (2020-2021 TLX, sensor cracks so the system fails to suppress the passenger airbag as intended) and the later, broader 26V33… Repairs typically run $0-$0. Severity: medium.
What is the 2021-2025 Acura TLX 2.0L Turbo Intercooler Condensation Ingestion Causing Misfire and Limp Mode?
The base second-generation TLX uses a 2.0L turbocharged four with a front-mounted air-to-air intercooler. In humid, rainy or cold-and-damp conditions, water vapor condenses inside the intercooler and charge piping, pools, and is then slugged into the intake on a throttle transiti… Repairs typically run $0-$1,400. Severity: medium.
What is the 2015-2022 Acura TLX AcuraWatch CMBS False Emergency Braking and Cascading ADAS Warning Cluster?
The AcuraWatch front camera and millimeter-wave radar produce false Collision Mitigation Braking System activations - the car brakes hard, sometimes to a full stop, with no vehicle or obstacle ahead. NHTSA filings on the 2018 TLX describe the 'frontal crash mitigation feature sud… Repairs typically run $0-$1,800. Severity: medium.
What is the 2021-2025 Acura TLX Type S Brembo Front Brake Squeal and Premature Pad Wear?
The 2021–2025 TLX Type S and Type S PMC use a fixed front Brembo brake system whose performance-oriented pad compound can squeal during light braking and wear unevenly if pad-retaining hardware or contact points corrode. This does not apply to the A-Spec brake system. Repairs typically run $150-$500. Severity: low.
