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2021 Acura TLX problems: engine and transmission complaints and recalls

VERY HIGH COMPLAINT SIGNAL
70%
66 of 94 relevant owner complaints are about the engine, transmission or fuel system

70% of relevant owner complaints filed with NHTSA on the 2021 Acura TLX are about the engine, transmission or fuel system. Well over half of everything owners reported is the drivetrain. That is a severe model-level pattern; every model year we track at this level has a documented failure behind it.

Worse than 92% of the 1,789 model years we track (2010–2023).

Excludes 8 airbag, lighting and seat-belt recall complaints that would otherwise mask the signal (unadjusted: 65%).

NHTSA data checked October 3, 2026
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Does the 2021 Acura TLX have transmission problems?

Owner complaints say yes, heavily, as a model-year pattern. 66 of 94 relevant complaints filed with NHTSA about the 2021 Acura TLX concern the engine, transmission or fuel system (70%), and the largest group is filed under power train (56). For comparison, the 2020 scores 55% and the 2022 scores 59%. On a test drive, check for shuddering, slipping, delayed or harsh shifts, or a whine at speed. This describes the model year, not any one car: a well-maintained or already-repaired example can be fine, and a clean model year can still have a bad car in it.

Drivetrain complaints
66
engine, transmission, fuel
Total complaints
102
this model year
Fires reported
0
owner-reported
Recall campaigns
5
3 crashes · 3 injuries

Complaints by component

POWER TRAIN56 · 55%
ELECTRICAL SYSTEM11 · 11%
UNKNOWN OR OTHER10 · 10%
SERVICE BRAKES10 · 10%
ENGINE9 · 9%
SUSPENSION7 · 7%

The years either side

2010
no data
2011
no data
2012
too few complaints
2013
no data
2014
no data
2015
71%
234 of 342
2016
56%
60 of 110
2017
72%
51 of 71
2018
63%
57 of 94
2019
63%
57 of 92
2020
55%
33 of 63
2021
70%
66 of 102
2022
59%
20 of 34
2023
too few complaints

Manufacturers fix things mid-generation. A bad year next to a clean one is common; the fix usually arrived in between.

Cleaner alternatives

Other luxury sedans with no elevated signal

The percentage is each model year's drivetrain complaint share. No elevated signal describes the model year, not any one car; a well-kept example of a flagged model can still be the right buy, and any of these still needs an inspection.

What owners reported

SUSPENSION,POWER TRAIN10/01/2026
I am submitting this complaint regarding a major drivetrain failure in my 2021 Acura TLX Type S SH-AWD with approximately 86,643 miles. My vehicle experienced a complete loss of AWD. The front two wheels are receiving power, but the rear wheels are no longer receiving power. An independent mechanic initially diagnosed…
FUEL/PROPULSION SYSTEM09/24/2026
My 2021 Acura TLX has a fuel leak. This is a known issue and manufacture design flaw. The Acura dealership has quoted my $4200 - $4500 to replace the fuel tank. I've contacted Honda and they've only offer $300 "goodwill" credit towards the repair. This is a know issue, a fire hazard, and other 2021 TLX has been rec…
ENGINE09/11/2026
I drive a 2021 Acura TLX TYPE S around 85K miles. I heard a loud clank when I was driving one day, and I loss traction. When I was accelerating I was losing traction and it seem like I lost power while I was moving as well. It seems like I'm driving front wheel drive. I let me foot of the gas and it seems like it's bac…

Three of 66 drivetrain complaints. The full report shows more, with quotes about the engine in the car you are looking at first.

Recall campaigns on the 2021 Acura TLX (5)

AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION:FRONT PASSENGER
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 Ty…
FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
Acura (American Honda Motor Co.) is recalling certain 2021-2023 TLX vehicles. The fuel filler neck and fuel tank may have been improperly welded, which can result in a f…
SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES
Honda (American Honda Motor Co.) is recalling certain 2021-2025 Acura TLX, 2023-2025 Acura MDX, and 2023-2025 Honda Pilot vehicles. The brake pedal pivot pin was not secu…

This does not say whether a particular car has an open, unrepaired recall. That depends on the VIN.

Before you buy a 2021 Acura TLX

Questions people ask about the 2021 Acura TLX

Does the 2021 Acura TLX have transmission problems?

Owner complaints say yes, heavily, as a model-year pattern. 66 of 94 relevant complaints filed with NHTSA about the 2021 Acura TLX concern the engine, transmission or fuel system (70%). Before buying one, have an independent mechanic check the transmission and ask the seller whether it has been repaired or replaced.

Are there engine or transmission recalls on the 2021 Acura TLX?

NHTSA lists 5 recall campaigns on the 2021 Acura TLX. Whether a specific car still has one open depends on its VIN.

Which Acura TLX years are better?

Among the Acura TLX years we track, the 2020 (55%), the 2016 (56%) and the 2022 (59%) have a lower engine and transmission complaint share than the 2021 (70%). Manufacturers fix things mid-generation, so the year before or after can be a different car.

Should I buy a 2021 Acura TLX?

That depends on the car in front of you, not just the model year. The 2021 Acura TLX has an elevated transmission complaint pattern, so treat it as a car that needs proof: service records showing transmission work, a cold-start test drive, and an independent pre-purchase inspection focused on the transmission. A well-kept or already-repaired example can be a fine car; an unknown one is a gamble.

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Experimental model-level information. This is not a vehicle inspection, vehicle-history report, financial advice or purchase recommendation. It describes patterns across a model year, not the condition of any individual vehicle. Combined across 2 body styles NHTSA files separately.