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2020 Acura Tlx TSBs

48 Technical Service Bulletins across 6 categories

Engine

40 bulletins
11020583

Service Bulletin - Under certain circumstances, after coming to a stop and engaging idle stop the vehicle may not...

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restart automatically due to excessive cylinder pressure and/or low cranking torque. Typically, the client can immediately restart the vehicle by selecting Park and pressing the ENGINE START/STOP button.

11015014

Service Bulletin - The AWD warning light is on with one or more AWD DTCs having been set due to water intrusion into the...

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electric oil pump motor connector area corrodes the terminals.

11011046

Service Bulletin - The AWD warning light is on potentially due to water intrusion into the rear differential pump motor...

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connector area that corrodes the terminals.

11000147

Service News - Due to On-Board Diagnostic (OBD) regulation change starting with 2019 vehicles, American Hondas Variable...

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Valve Timing and Lift Electronic Control (VTEC) On-Board Diagnostic monitors are now included in the EGR/VVT OBD Monitor Readiness status group. Due to some customers driving patterns, they may not drive in the fashion needed to operate the VTEC (EGR/VVT) that only operates above 5,350 rpm to run the OBD monitoring. Therefore, the EGR/VVT OBD monitor group readiness status is not set to Complete when the customer presents their vehicle to a Smog Check station for inspection.

10248978

Service Bulletin - The MIL comes on during vehicle operation due to variations in the purge control solenoid valve...

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spring, the valve wears unevenly and intermittently sticks. This may result in setting DTC P0441 (Evaporative Emission (EVAP) System Purge Flow Malfunction).

10247626

Service Bulletin - Due to variations in the purge control solenoid valve spring, the valve wears unevenly and intermittently sticks.

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This may result in setting DTC P0441 (Evaporative Emission (EVAP) System Purge Flow Malfunction).

10239111

Owner Notification Letter - Under certain circumstances, after coming to a stop and the idle stop feature engages, the...

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vehicle may not automatically restart. Acura is providing a product update with new PGM-FI software update to fix this issue.

10235126

Service Bulletin - The engine will not crank on the initial startup attempt after the vehicle has been exposed to...

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precipitation and then freezing temperatures. Water can enter the starter motor. In cold temperatures the water can freeze, preventing the starter motor from cranking the engine.

10228203

Dealer Message - American Honda Motor Co., Inc.

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(AHM) is investigating certain 2020-2021 RDXs & TLX L4s with a client complaint of an oil leak or a dealer technician noticing an oil leak from the head cover gasket during a routine maintenance. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.

10227237

Dealer Message - American Honda Motor Co., Inc.

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(AHM) is investigating certain 2020-2021 RDXs & TLX L4s with a client complaint of an oil leak or a dealer technician noticing an oil leak from the head cover gasket during a routine maintenance. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.

10226204

Dealer Message - American Honda Motor Co., Inc.

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(AHM) is investigating certain 2020-2021 RDXs & TLX L4s with a client complaint of an oil leak or a dealer technician noticing an oil leak from the head cover gasket during a routine maintenance. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.

10224786

Dealer Message - American Honda Motor Co., Inc.

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(AHM) is investigating certain 2020-2021 RDXs & TLX L4s with a client complaint of an oil leak or a dealer technician noticing an oil leak from the head cover gasket during a routine maintenance. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.

10222821

Dealer Message - American Honda Motor Co., Inc.

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(AHM) is investigating certain 2020-2021 RDXs & TLX L4s with a client complaint of an oil leak or a dealer technician noticing an oil leak from the head cover gasket during a routine maintenance. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.

10222453

Service Bulletin - (Repair Procedure Revision) Due to swelling of the fuel pump motor impeller, the fuel pump may seize and stop working.

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If this occurs, the check engine light may be displayed with DTC P0087 (Fuel Rail Pressure Too Low) stored, the engine may not start, or the engine could stall while driving, increasing the risk of a crash. Replace the fuel pump motor.

10222451

Service Bulletin - (Repair Procedure Revision) Due to swelling of the fuel pump motor impeller, the fuel pump may seize and stop working.

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If this occurs, the check engine light may be displayed with DTC P0087 (Fuel Rail Pressure Too Low) stored, the engine may not start, or the engine could stall while driving, increasing the risk of a crash. Replace the fuel pump motor.

10215501

"Customer letter - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart.

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To ensure your confidence in your vehicle. Acura is extending the warranty coverage for starter and starter relays and a valve adjustment related to this condition to 10 years from the original date of purchase with no mileage limitation. This warranty extension provides coverage for the original owner and any subsequent owners. No action is required on your part unless you experience a problem."

10215500

"Customer letter - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart.

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Acura is providing a product update with new PGM-FI software update to fix this issue. In addition, to ensure your confidence in your vehicle, Acura is extending the warranty coverage for valve adjustment and starter replacement related to this condition to 10 years from the original date of purchase with no mileage limitation. This warranty extension provides coverage for the original owner and any subsequent owners. No action is required on your part unless you experience a problem."

10213569

American Honda Motor Co., Inc.

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(AHM) is searching for certain 2016-2020 MDXs, RLXs & TLXs with a client complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected), P0171 & P0174 (Rear/Front Bank Fuel System Too Lean), or P219A&B (Air-Fuel Ratio Variation of Cylinder) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

10211102

Dealer message - American Honda Motor Co., Inc.

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(AHM) is searching for certain 2016-2020 MDXs, RDXs & TLXs with a client complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected), P0171 & P0174 (Rear/Front Bank Fuel System Too Lean), or P219A&B (Air-Fuel Ratio Variation of Cylinder) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

10211082

Service bulletin - Under certain circumstances, after coming to a stop and engaging idle stop the vehicle may not...

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restart automatically due to excessive cylinder pressure and/or low cranking torque. Typically, the client can immediately restart the vehicle by selecting Park and pressing the ENGINE START/STOP button.

10211081

Service bulletin - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart.

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Typically, the customer can immediately restart the vehicle by selecting Park and pushing the ENGINE START/STOP button.

10210101

"Service bulletin - Under certain circumstances, after coming to a stop and engaging idle stop the vehicle may not...

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restart automatically due to excessive cylinder pressure and/or low cranking torque. Typically, the client can immediately restart the vehicle by selecting Park and pressing the ENGINE START/STOP button. Acura is extending the warranty coverage for valve adjustment and starter replacement related to this condition to 10 years from the original date of purchase with no mileage limitation."

10210100

"Service bulletin - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart.

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Typically, the customer can immediately restart the vehicle by selecting Park and pushing the ENGINE START/STOP button."

10210096

Dealer message - American Honda Motor Co., Inc.

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(AHM) is searching for certain 2016-2020 MDXs, RDXs & TLXs with a client complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected), P0171 & P0174 (Rear/Front Bank Fuel System Too Lean), or P219A&B (Air-Fuel Ratio Variation of Cylinder) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

10210085

"Dealer message - Today, March 30, 2022, Acura is announcing a product update and warranty extension for certain...

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2015-2020 TLX vehicles to update the PGM-FI software that may affect the idle stop operation and starter under certain conditions. Acura is extending the warranty coverage for valve adjustment and starter replacement related to this condition to 10 years from the original date of purchase with no mileage limitation. Perform an iN VIN status inquiry to determine which units in your inventory are affected."

10209092

Dealer Message - American Honda Motor Co., Inc.

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(AHM) is searching for certain 2016-2020 MDXs, RDXs & TLXs with a client complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected), P0171 & P0174 (Rear/Front Bank Fuel System Too Lean), or P219A&B (Air-Fuel Ratio Variation of Cylinder) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

10208407

Dealer Message - American Honda Motor Co., Inc.

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(AHM) is searching for certain 2016-2020 MDXs, RDXs & TLXs with a client complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected), P0171 & P0174 (Rear/Front Bank Fuel System Too Lean), or P219A&B (Air-Fuel Ratio Variation of Cylinder) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

10208095

Dealer Message - American Honda Motor Co., Inc.

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(AHM) is searching for certain 2016-2020 MDXs, RDXs & TLXs with a client complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected), P0171 & P0174 (Rear/Front Bank Fuel System Too Lean), or P219A&B (Air-Fuel Ratio Variation of Cylinder) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

10206804

Dealer Message - American Honda Motor Co., Inc.

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(AHM) is searching for certain 2016-2020 MDXs, RDXs & TLXs with a client complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected), P0171 & P0174 (Rear/Front Bank Fuel System Too Lean), or P219A&B (Air-Fuel Ratio Variation of Cylinder) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

10206450

Dealer Message - American Honda Motor Co., Inc.

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(AHM) is searching for certain 2016-2020 MDXs, RDXs & TLXs with a client complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected), P0171 & P0174 (Rear/Front Bank Fuel System Too Lean), or P219A&B (Air-Fuel Ratio Variation of Cylinder) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

10205468

Dealer Message - American Honda Motor Co., Inc.

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(AHM) is searching for certain 2016-2020 MDXs, RDXs & TLXs with a client complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected), P0171 & P0174 (Rear/Front Bank Fuel System Too Lean), or P219A&B (Air-Fuel Ratio Variation of Cylinder) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

10203819

Dealer Message - American Honda Motor Co., Inc.

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(AHM) is searching for certain 2016-2020 MDXs, RDXs & TLXs with a client complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected), P0171 & P0174 (Rear/Front Bank Fuel System Too Lean), or P219A&B (Air-Fuel Ratio Variation of Cylinder) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

10203637

Dealer Message - American Honda Motor Co., Inc.

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(AHM) is searching for certain 2016-2020 MDXs, RDXs & TLXs with a client complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected), P0171 & P0174 (Rear/Front Bank Fuel System Too Lean), or P219A&B (Air-Fuel Ratio Variation of Cylinder) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

10202919

Dealer Message - American Honda Motor Co., Inc.

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(AHM) is searching for certain 2016-2020 MDXs, RDXs & TLXs with a client complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected), P0171 & P0174 (Rear/Front Bank Fuel System Too Lean), or P219A&B (Air-Fuel Ratio Variation of Cylinder) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

10202328

Dealer Message - American Honda Motor Co., Inc.

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(AHM) is searching for certain 2016-2020 MDXs, RDXs & TLXs with a client complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected), P0171 & P0174 (Rear/Front Bank Fuel System Too Lean), or P219A&B (Air-Fuel Ratio Variation of Cylinder) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

10202040

Dealer Message - American Honda Motor Co., Inc.

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(AHM) is searching for certain 2016-2020 MDXs, RDXs & TLXs with a client complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected), P0171 & P0174 (Rear/Front Bank Fuel System Too Lean), or P219A&B (Air-Fuel Ratio Variation of Cylinder) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

10202039

Dealer Message - American Honda Motor Co., Inc.

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(AHM) is searching for certain 2016-2020 MDXs, RDXs & TLXs with a client complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected), P0171 & P0174 (Rear/Front Bank Fuel System Too Lean), or P219A&B (Air-Fuel Ratio Variation of Cylinder) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

10200856

Dealer Message - American Honda Motor Co., Inc.

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(AHM) is searching for certain 2016-2020 MDXs, RDXs & TLXs with a client complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected), P0171 & P0174 (Rear/Front Bank Fuel System Too Lean), or P219A&B (Air-Fuel Ratio Variation of Cylinder) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

10190994

Dealer Message - American Honda Motor Co., Inc.

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(AHM) is searching for certain 2018-2020 MDXs (non-Hybrid) & TLX V6s with a client complaint of the Malfunction Indicator Light (MIL) on with the DTC P0441 (EVAP System Purge Flow Malfunction) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

10189940

Dealer Message - American Honda Motor Co., Inc.

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(AHM) is searching for certain 2018-2020 MDXs (non-Hybrid) & TLX V6s with a client complaint of the Malfunction Indicator Light (MIL) on with the DTC P0441 (EVAP System Purge Flow Malfunction) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

Electrical

3 bulletins
10203504

ServiceNews Article - There are several possible causes for the SRS DTC U3000-49 (Internal Failure of the SRS Unit) to be stored.

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If you can duplicate the DTC, the troubleshooting will take you through the step-by-step process in isolating the faulty component. In most situations, the SRS Unit should be last on the list of components to replace. Here is a quick tip for troubleshooting a faulty seat weight sensor.

10202602

ServiceNews Article - There are several possible causes for the SRS DTC U3000-49 (Internal Failure of the SRS Unit) to be stored.

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If you can duplicate the DTC, the troubleshooting will take you through the step-by-step process in isolating the faulty component. In most situations, the SRS Unit should be last on the list of components to replace. Here is a quick tip for troubleshooting a faulty seat weight sensor.

10160873

ServiceNews Article - When removing and installing a cable reel, you need to keep both the cable reel and the steering angle sensor in position.

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If you don't, the VSA indicator may come on along with one or more VSA DTCs. And when you run the Neutral Memorization Procedure in the i-HDS, it won't complete.

Lighting

2 bulletins
10215507

Tech line summary article - Clients are experiencing multiple warning lights coming on with DTC C1600-94 Precision All...

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Wheel Steer System Unexpected Operation. Do an all DTC check. If you can duplicate and related codes are present, follow the appropriate troubleshooting. If you cannot duplicate the contention after clearing the DTC, then follow up with the client and document the driving conditions needed to replicate the clients complaint.

10211083

Tech line summary article - Clients are experiencing multiple warning lights coming on with DTC C1600-94 (Precision All...

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Wheel Steer System Unexpected Operation). You need to do an all DTC check. If you can duplicate and related codes are present, follow the appropriate troubleshooting. If you cannot duplicate the contention after clearing the DTC then follow up with the client and document the driving conditions needed to replicate the complaint.

Software & Calibration

1 bulletin
10211608

Special Tool Loan Program: Under TOOLS AVAILABLE FOR LOAN, the list has been updated.

Transmission

1 bulletin
10182001

Service Bulletin - The transmission has intermittent harsh or jerky upshifts with steady acceleration.

Infotainment

1 bulletin
10172417

Service Bulletin - The navigation display distorts after driving 1 or more hours.

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Also, the distance and time to travel does not update, the navigation icon shows the vehicle in the wrong location, and the touch screen does not respond.