Buyer Research

2021 Acura TLX — Should You Buy One?

Typical asking price: $23,000–$38,000. There are 3 high-severity known issues you need to know before handing over a check.

Deciding between model years? Compare the 11 Acura TLX years we've written up →

Kestrel Take

First year of the all-new second-generation TLX: a 2.0 turbo four with a ten-speed automatic, front-drive or SH-AWD, and from mid-year the 355-hp 3.0 turbo V6 Type S with SH-AWD standard. The record is 67 complaints, 3 crashes, 4 recalls, and it is being written right now — 29 of the 67 were filed in 2026 alone, and most of those are one failure: the splines between the transmission and the transfer case strip, the rear wheels quietly stop driving, and there is no warning light to tell you. That is 39% of the file. Around it sit a fuel-tank weld recall with a fire risk, a brake-pedal pivot recall, two seat-sensor recalls, warped rotors, and a screen that shorts and takes the backup camera with it. The 2.0T front-drive car sidesteps the transfer case entirely; an SH-AWD car is worth buying only with a dry transfer-case seam, all four wheels proven to drive, and the 6-year/70,000-mile powertrain warranty confirmed on the VIN.

What we checked

Reconciled against public records, 2026-09-25

NHTSA holds 67 owner complaints for the 2021 Acura TLX, and 4 recall campaigns.

A big number here usually means a lot of these were sold, not that it is a bad vehicle — popular models collect more complaints for the same rate of trouble. So the total on its own says little. What is worth reading is the shape of it. 39% of them are about one thing — the transmission and drivetrain. That much concentration is a genuine pattern rather than background noise, and it is the first thing to check on any example you look at.

4 recall campaigns cover this model year. Recalls are repaired free, for any owner, with no time limit on most safety campaigns — but only if someone books it in. Ask the seller to show it was done, or have any dealer check the VIN; it takes them a couple of minutes and costs nothing.

Counts come from the NHTSA complaint and recall database — free, public, and worth checking yourself.

Known Issues for the 2021 Acura TLX

Ranked by wallet impact. These are documented, recurring problems — not freak accidents. How we decide that.

Transfer-case splines strip on SH-AWD cars — the car silently becomes front-wheel drive, then leaksHigh — wallet impact

The biggest cluster on this car, 26 complaints and growing fast. On SH-AWD cars — Type S above all, but 2.0T all-wheel-drive cars too — the splined joint where the transfer case meets the transmission output wears and strips. Owners describe a shudder and a drivetrain noise for a few seconds, then nothing: no light, no code, no message, just a car that spins its front tires from a stop because the rear axle is no longer connected. Many found it as a fluid leak at the seam between transmission and transfer case during an oil change. Dealers have been replacing both the transfer case and the transmission under the 6-year/70,000-mile powertrain warranty, one at 29,800 miles; owners reference an NHTSA defect petition on the splines, and there is no recall as of this writing. Check the VIN's in-service date against the warranty, get under the car with a light and look at the mating seam for wetness, and on a wet or gravel surface pull away hard — the rear wheels should bite.

Repair cost (estimate): $0 under the powertrain warranty; $4,000–$8,000 for a transfer case and transmission outside it — about 26% of what this car is typically worth

Source: NHTSA complaints filed under the transmission and drivetrain (26).

Fuel tank and filler neck may be badly welded and leak fuel (recall)High — wallet impact

Recall 24V950 covers 2021–2023 TLXs: the fuel filler neck may have been improperly welded to the tank, and a fuel leak next to any ignition source is a fire. The remedy is a new fuel tank assembly, free, with letters mailed February 2025. Five owners filed under fuel system on this year; none of them describes a fire. Run the VIN on the NHTSA recall lookup, ask for the repair order, and after the test drive smell around the rear wheel arches and under the trunk — raw fuel is unmistakable.

Repair cost: $0 with the recall — verify it was performed

Source: NHTSA complaints filed under the fuel system (5); 4 NHTSA recall campaigns on this model year.

Brake pedal pivot pin not secured — the pedal can shift out of position (recall)High — wallet impact

Recall 25V391 covers 2021–2025 TLXs with the newer MDX and Pilot: the pin the brake pedal pivots on was not secured properly, so the pedal can move out of position and stop you applying the brakes as intended. Dealers inspect and replace the pedal assembly free; letters went out July 2025, so plenty of cars still show it open. It is a two-minute check on the VIN lookup and one of the reasons a car this new should still be bought on paper. Press the pedal hard with the engine off and feel for any sideways play or a change in where it sits.

Repair cost: $0 with the recall — verify it was performed

Source: 4 NHTSA recall campaigns on this model year.

Rotors warp early and the wheel shakes at 55 mph; adaptive-damper errors and a leaking steering column in the mixMedium

Ten brake complaints and none describes a failure to stop: it is warped rotors, hotspots on rotors with good pads, a steering wheel that shakes on the pedal at 55 mph, and one owner whose warranty rotors were humming again 2,000 miles later. Filed alongside it is an 'Adaptive Damper System' error on an Advance car, codes C1646 and C1647 pointing at the damper stroke sensors, that came back after both rear shocks were replaced — and one car whose steering column was leaking fluid onto the pedal. Brake it firmly from 60 mph on the drive and feel the wheel and pedal; on an Advance or Type S, cycle the drive modes and watch for a damper warning.

Repair cost (estimate): $400–$800 for front rotors and pads; $800–$1,600 per pair of adaptive dampers

Source: NHTSA complaints filed under the brakes (10), the suspension (5).

Screen shorts and freezes in reverse, wipers run by themselves, and a full-dash cascade into limp modeMedium

Nine electrical complaints, three stories. The most common is the centre screen shorting or freezing — sometimes on a bump, sometimes mid-reverse so the camera view is a still image while the car is moving — and restarting itself or staying dead until the next key cycle. One owner has wipers that come on and will not stop, a key fob the car sometimes cannot see, and then every warning at once (brakes, transmission, steering, adaptive cruise) with the car in limp mode. One Advance owner logs a front-suspension creak with the A/C in comfort mode. Keep the screen and camera in use through the whole drive, back up twice over a kerb lip, and ask for the dealer history — these cars have been back repeatedly for the same screen.

Repair cost (estimate): $0–$300 under the bumper-to-bumper warranty; $1,200–$2,500 for a head unit outside it

Source: NHTSA complaints filed under electrics and electronics (9).

Front passenger seat weight sensors — two recalls on one seat, the second only mailed July 2026Medium

Recall 24V064, letters mailed March 2024 and phased, and recall 26V332, mailed July 2026, both replace the front passenger seat weight sensors, which can misjudge who is in the seat so the airbag may deploy when it should not in a crash. Seven airbag complaints on this year, one after a crash. Both campaigns are free at any Acura dealer and list separately on the VIN lookup; the newer one will show open on most cars simply because it is so recent. Sit an adult in the passenger seat and confirm the airbag-off indicator goes out.

Repair cost: $0 with the recall — verify it was performed

Source: NHTSA complaints filed under airbags (7); 4 NHTSA recall campaigns on this model year.

Collision-mitigation and driver-assist faults — seven complaints, one crash, no owner text in our briefMedium

Seven complaints under forward collision avoidance including one crash, and our brief holds none of the owner wording, so we cannot name the part. On this generation the usual triggers are the windshield camera after a glass replacement without recalibration, a front radar behind a repainted bumper, or the full-dash electrical cascade above wearing another label. Turn every AcuraWatch system on for the drive, confirm each shows ready, and ask whether the windshield has ever been replaced.

Repair cost (estimate): $200–$600 for a camera or radar recalibration; $1,000–$1,800 for a unit

Source: NHTSA complaints filed under the driver-assist and automatic braking systems (7).

Walk-Away Red Flags

✗Wet or grimy seam where the transfer case meets the transmission, or fluid on the skid plate
✗Front tires chirp from a hard stop on an SH-AWD car while the rears stay quiet
✗Any of the four campaigns still open on the NHTSA VIN lookup
✗Steering wheel shakes under braking from highway speed
✗Centre screen freezes or restarts on a bump or in reverse

Good Signs

✓Repair order showing the transfer case and transmission replaced under warranty
✓Powertrain warranty (6 years/70,000 miles) confirmed on this VIN by an Acura dealer
✓All four recalls listed complete on the NHTSA lookup, with repair orders
✓A dry transfer-case seam under a flashlight after a warm drive
✓Screen and backup camera up instantly and steady over rough pavement