RoadVitals

2021 Harley-Davidson Flhtk

Recalls, owner-reported complaints, investigations and safety data

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
2
Latest Aug 9, 2024
Safety recallsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
1
Latest Oct 18, 2022
InvestigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
0
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
0

Overview

Our database contains 2 NHTSA owner-reported complaints for the 2021 Harley-Davidson Flhtk, most frequently naming the driver assistance and powertrain (other) categories. 1 safety recall has been issued covering this model year; and 62 manufacturer communications are on file.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

What owners report

Complaints grouped by the component NHTSA recorded

  • Driver assistance150.0%
  • Powertrain (other)150.0%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Safety recalls

1 campaign cover this model year

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov
22V781000

EXTERIOR LIGHTING:BRAKE LIGHTS

Oct 18, 2022
199,419 units potentially affected
The defect: Harley-Davidson Motor Company (Harley-Davidson) is recalling certain 2019-2022 Trike and CVO Trike and 2020-2022 Touring and CVO Touring motorcycles. Please refer to Addendum A for specific vehicle model details. Due to a software error, the brake lights may illuminate without the rider applying the brakes. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
The risk: Unintended illumination of the brake lights may confuse other drivers, increasing the risk of a crash.
The remedy: Dealers will update the software on Touring and CVO Touring motorcycles. On Trike and CVO Trike motorcycles, a new pressure switch will also be installed. All repairs will be performed free of charge. Owner notification letters were mailed November 2, 2022. Owners may contact Harley-Davidson customer service at 1-800-258-2464. Harley-Davidson's number for this recall is 0635.
Harley-Davidson Motor CompanyManufacturer number 0635View on NHTSA.gov

Recent owner complaints

Reports submitted to NHTSA, shown in the owner's own words

Driver assistance
Filed Aug 9, 2024

A redesign in the left and right handle controls of the Harley 2014 model’s, the Press to Talk (PTT) button and Cruise Control buttons were switched from the left hand grip to the right throttle/brake hand grip. The PTT button is used for the Citizens Band (CB) radio. The PTT button had always been located on the left hand grip and the Cruise Control button had always been located on the right throttle/brake hand grip. In order for the operator to use the CB to talk, the PTT button is used. To activate the PTT button, the operator’s right thumb is used. When performing this action the operator needs to remove the thumb from the right hand grip and press the PTT button, and maintain continuous pressure to the button in order to talk using a motorcycle helmet microphone. The PTT button is the farthest button from the right hand grip at 2 ½ inches. Because the right thumb is removed from the right hand grip, the operator no longer has a grip on the right hand grip for only 4 fingers are on the grip. This is not safe for the operator when controlling the vehicle. The right hand grip has the throttle control and has the brake lever. When using the throttle control, you grip the right hand grip, with all fingers and thumb, and twist the grip to accelerate, decelerate or maintain speed. This setup, when using the PTT button, the operator no longer can maintain speed, accelerate or decelerate the vehicle because the operator does not have a grip on the right hand grip, only 4 fingers. The operator also cannot use the brake lever because the operator does not have a grip on the right hand grip. This setup, when using the brake lever the operator only uses 4 fingers to apply pressure while maintaining their thumb on the PTT button. The operator cannot safely use the PTT button while operating the right throttle/brake grip on the right hand grip. Harley Davidson provided an update to the 2014 models but not for the 2021 models, the update switched the buttons back correctly.

NHTSA ID
11607522
Incident
Aug 9, 2024
Powertrain (other)
Filed Feb 14, 2024

Recently while riding my motorcycle, I experienced a near total loss of clutch control. Fortunately, was able to safely limp it back to the garage. What I found when checking components, my clutch lever lost most of its tension. I thought it might be a stripped plastic tensioner that others have experienced. Instead, it was partially the plastic push button slipped and the metal retaining threads on the clutch cable separated from the upper clutch cable causing an immediate loss in tension to engage the clutch. I did not take a photo, but included a photo of exactly what the failure looks like. Photo from [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID
11571996
Incident
Feb 11, 2024

Manufacturer communications

A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.

M1490

ELECTRICAL SYSTEM; ENGINE; POWER TRAIN; VEHICLE SPEED CONTROL; WHEELS

SERVICE BULLETIN M1490 (V 26.8.3): DIGITAL TECHNICIAN II - UPDATES AND RELEASE NOTES. PURPOSE: Revision. This bulletin informs dealers that Harley-Davidson has made a software update to Digital Technician II (DT II). DIGITAL TECHNICIAN II (PART NUMBER: HD-48650). Version Version 26.8.3, Release Date: Week of July 24, 2026. NOTE: Software version (26.4.3) will need to be manually installed only if current software version of DT II is (26.0.2). After (26.4.3) is manually installed, automatic updates will bring DT II to the latest software version. Refer to bulletin M1713 for instructions. New Features - Harley-Davidson: 2023-2024 Touring: Updated Electronic Control Module (ECM) calibration offerings. LiveWire: S2DM/MH/AP: Calibration bundle 10.2.28: Telematic Control Unit (TCU) reflash updates. Change: Vehicle Setup: Body Control Module (BCM) – Tire Pressure Monitoring System (TPMS) Replacement: Correct issue where tire size selections were not available. System Info – Auxiliary Load Controller (ALC): Added Bike configuration field. Data Items – Trike ECM: Improved display of Gear Position when in reverse. Amp – Added support for (Part No. 76001619).

M1490

ELECTRICAL SYSTEM; ENGINE; EXTERIOR LIGHTING; FUEL/PROPULSION SYSTEM

SERVICE BULLETIN M1490 (V 26.7.3): DIGITAL TECHNICIAN II - UPDATES AND RELEASE NOTES. PURPOSE: Revision. This bulletin informs dealers that Harley-Davidson has made a software update to Digital Technician II (DT II). DIGITAL TECHNICIAN II (PART NUMBER: HD-48650). Version 26.7.3. Release Date:• Week of June 11, 2026. NOTE Software version (26.4.3) will need to be manually installed only if current software version of DT II is (26.0.2). After (26.4.3) is manually installed, automatic updates will bring DT II to the latest software version. Refer to bulletin M1713 for instructions.

M1490

ELECTRICAL SYSTEM; ENGINE; FUEL/PROPULSION SYSTEM; POWER TRAIN; VEHICLE SPEED CONTROL

SERVICE BULLETIN M1490 (V 26.6.2): DIGITAL TECHNICIAN II - UPDATES AND RELEASE NOTES. PURPOSE: Revision. This bulletin informs dealers that Harley-Davidson has made a software update to Digital Technician II (DT II). DIGITAL TECHNICIAN II (PART NUMBER: HD-48650). Version 26.6.2. Release Date: Week of April 22, 2026. NOTE: Software version (26.4.3) will need to be manually installed only if current software version of DT II is (26.0.2). After (26.4.3) is manually installed, automatic updates will bring DT II to the latest software version. Refer to bulletin M1713 for instructions. New Features: 2026 Police • Vehicle Setup: Civilianize; LiveWire • S2: Del Mar (S2DM), Mulholland (S2MH), Alpinista (S2AP) - Calibration bundle 10.2.20: Vehicle Supervisory Controller (VSC) and Onboard Charger (OBC) reflash updates. Changes: 2026 Trike • Update “Reverse Lockout Reason” resize column.

M1490

ELECTRICAL SYSTEM; ENGINE; FUEL/PROPULSION SYSTEM; VEHICLE SPEED CONTROL

SERVICE BULLETIN M1490 (V 26.5.2): DIGITAL TECHNICIAN II - UPDATES AND RELEASE NOTES. PURPOSE: Revision. This bulletin informs dealers that Harley-Davidson has made a software update to Digital Technician II (DT II). DIGITAL TECHNICIAN II (PART NUMBER: HD-48650). Version 26.5.2 Release Date: Week of March 30, 2026. NOTE Software version (26.4.3) will need to be manually installed only if current software version of DT II is (26.0.2). After (26.4.3) is manually installed, automatic updates will bring DT II to the latest software version. Refer to bulletin M1713 for instructions. New Features. 2024: Pan America (RA1250), Pan America Special (RA1250S), CVO Pan America (RA1250SE) • Updated Body Control Module (BCM) reflash calibration. 2024-2026: CVO Road Glide ST (FLTRXSTSE) • Updated Electronic Control Module (ECM) reflash calibration. 2026: CVO Street Glide ST (FLHXSTSE) • Updated ECM reflash calibration. Changes. 2026 Trike • Update “Reverse Lockout Reason” to support new values, • “Vehicle setup: Gear Indicator Calibration” – improve operation. 2025-2026 Softail • Update reflash for Softail Speedometer (SPDO) – enable operation of auxiliary lamp telltale. LiveWire S2 • Provide reflash support for Vehicle Supervisory Controller (VSC) hardware (Part No. 41001756RE).

M1679

ENGINE

SERVICE BULLETIN M1679: AFTERMARKET EXHAUST HEADER DEBRIS. PURPOSE: Initial release. This bulletin informs dealers that Harley-Davidson has identified instances of premature engine failure due to abrasive particle wear, specifically from debris inside new aftermarket exhaust headers. Recent evaluations have identified that certain newly manufactured exhaust headers may contain residual hard particles that, if not removed prior to installation, can migrate through the engine system and cause accelerated component wear or severe mechanical damage.

M1713

ELECTRICAL SYSTEM

SERVICE BULLETIN M1713 (REV C): DTII UPDATE PROCEDURE FOR SOFTWARE VERSION (26.4.3). PURPOSE: Revision C. This bulletin informs dealers that an issue was discovered in the Digital Technician II (DT II) software version (26.0.2), released on November 18, 2025. The issue prevents automatic software updates to be installed on your DT II computer. A manual installation of the latest DT II software version (26.4.3) will need to be performed if current DT II software version is (26.0.2), to allow future automatic updates. If a manual update to (26.1.5) or (26.3.2) has previously been completed, DT II will automatically update to (26.4.3) and no additional action is needed.. Revision C. Updated: Purpose for Service Bulletin and Required Dealer Action. Updated to Software Version (26.4.3).

Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.

Compare model years

Complaint and recall counts across every year of this model

Harley-Davidson Flhtk by model year
YearComplaintsRecallsInvestigationsIssue Index
2024000—
2023200—
2022110—
2021Viewing210—
2020110—
2019410—
2018420—
2017820—
2016101032.4
2015102036.6
2014375046.9
2013140040.0
2012191043.0
2011202152.0
2010293148.5
2009001—

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers. Older model years have had longer for reports to accumulate.