🚗 AutoDefect IQ

2012 Harley-Davidson Flstn problems, complaints & recalls

Most-reported problem areas: Wheels (2) · Suspension (1) · Exterior Lighting (1)

5
Complaints
0
Recalls
22
Service bulletins
0
Crashes reported
0
Fires reported
0
Deaths

Safety recalls (0)

No recalls on record for this model year (campaigns announced since 2010).

Service bulletins (22)

Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.

Unknown Or Other 2025-11-18 · M1490 · Service Bulletin/Repair Instructions

service bulletin m1490 (v 26.0.2): 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). new software update version 26.0.2.

Unknown Or Other 2025-10-28 · M1391A · Service Bulletin/Repair Instructions

service bulletin m1391a (revu): midtronics grx-3110 and dca-8000 software. purporse: revision u. the purpose of this bulletin is to inform the dealer network that a software update to the grx-3110 and dca-8000 is now available. dynamic diagnostic charger system (part number: dca-8000). [rev u] ad

Unknown Or Other 2025-10-25 · PAB1171 · Service Bulletin/Repair Instructions

genuine motor parts and accessories bulletin pab1171 (rev b): software update for screamin eagle pro street tuner. purpose: revision b. updated: summary. the app has returned to the apple app store. this bulletin informs dealers that a recent software update to the screamin' eagle pro street tune

Unknown Or Other 2025-09-06 · M1490 · Service Bulletin/Repair Instructions

service bulletin m1490 (v 25.8.9): 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). new software update version 25.8.9

Unknown Or Other 2025-08-26 · M1490 · Service Bulletin/Repair Instructions

service bulletin m1490 (v 25.8.7): 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). new software update version 25.6.4,

Unknown Or Other 2025-08-26 · M1391A · Service Bulletin/Repair Instructions

service bulletin m1391a (rev t): midtronics grx-3110 and dca-8000 software. purporse: revision t. the purpose of this bulletin is to inform the dealer network that a software update to the grx-3110 and dca-8000 is now available. dynamic diagnostic charger system (part number: dca-8000). [rev t] u

Showing the 6 most recent of 22 bulletins. Search all of them free at nhtsa.gov.

What owners report

2017-10-04 · Wheels · 4,700 mi

“purchased my first bike, a 2012 softtail deluxe with 4,700 miles purchased from my coworker who had only put 500 miles on the bike in last two years (since the 5000k service was done @ 4200mi.). took the bike out on a county road for the first time as a new rider and the bike developed a handlebar shake that i could not fight at 45 mi/hr. then wh…”

2014-07-03 · Exterior Lighting · 7,500 mi

“about 10:30 pm while en route to work i was riding on the freeway at the posted speed limit and i noted flashing lights appearing on the speedometer- the low fuel lamp and electrical system lamp. i pulled over the emergency lane right away to make any assessment. i was able to exit the freeway to secure a safer environment for me. the flashing low…”

2013-09-09 · Wheels · 2,000 mi

“2012 harley davidson flstn with only 2,000 miles. wire wheel spokes worked loose. wheel wobbled. my harley was uncontrollable and not safe to ride. i had the spokes tightened up by the harley dealer, but at about 5,000 miles spokes came loose again. same thing happened around 10,000. my harley is not safe to ride and the harley dealers are not…”

2012-09-10 · Electrical System · 15,000 mi

“tl* the contact owns a 2012 harley davidson flstn. the contact stated that while parked the motorcycle failed to start. it was able to restart after having a jump performed. also, the motorcycle would stall intermittently while riding it. the motorcycle was taken to the dealer who diagnose that the body control module needed to be replaced. the mot…”

2012-01-20 · Suspension · 800 mi

“tl* the contact owns a 2012 harley davidson flstn. the contact was driving 40 mph when the motorcycle began to vibrate abnormally. the contact took the vehicle to the dealer for diagnostic testing. the dealer advised that the rear wheel was faulty and needed to be replaced. the dealer replaced the rear wheel but the replacement did not remedy th…”

Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.

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