2018 Harley-Davidson Touring: common problems
The maker issued 9 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 9
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine and cooling | 0 | 0 | 5 |
| Equipment | 0 | 0 | 5 |
| Powertrain | 0 | 0 | 4 |
| Electrical system | 0 | 0 | 2 |
| Fuel system | 0 | 0 | 1 |
Comparison
What to check before buying
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- SERVICE BULLETIN M1492
2017 - 2019 TOURING - MILWAUKEE EIGHT - INNER PRIMARY VENT. PURPOSE. Revision. Harley-Davidson has learned that a small percentage of dealers and customers are finding low transmission oil levels and high primary oil…
- SERVICE BULLETIN M1510
MILWAUKEE-EIGHT ENGINE - NEW OIL FILTER. REVISION. PURPOSE: To inform dealers of an improved oil filter for the Milwaukee-Eight® (MKE-8) engine. The new oil filter uses the same synthetic 5-micron media as the current…
- SERVICE BULLETIN M1510
MILWAUKEE-EIGHT ENGINE - NEW OIL FILTER. REVISION. PURPOSE: To inform dealers of an improved oil filter for the Milwaukee-Eightî (MKE-8) engine. The new oil filter uses the same synthetic 5-micron media as the…
- SERVICE BULLETIN M1510
MILWAUKEE-EIGHT ENGINE - NEW OIL FILTER. PURPOSE: To inform dealers of an improved oil filter for the MKE-8 (Milwaukee-Eight®) engine. The new oil filter uses the same synthetic 5-micron media as the current filter…
- SERVICE BULLETIN M1509
MILWAUKEE-EIGHT CYLINDER FLANGE NUT USAGE. To Inform dealers of a service manual change. This change affects the flange nut attaching the cylinder/cylinder head assembly to the cylinder stud in all MKE-8…
- SERVICE BULLETIN M1499
2020 MODELS EQUIPPED WITH TCU - REFLASH AND ENABLE TCU. Revision. PURPOSE: This bulletin informs dealers of the procedure to verify the version of and, if necessary, reflash the TCU (Telematic Control Unit) software…
- GENUINE MOTOR PARTS AND MOTOR ACCESSORIES BULLETIN PAB1091
2014-LATER - BOOM! BOX GTS - FITMENT UPDATE. PURPOSE: Revision. To inform dealers of the upcoming software change expanding the Boom!⢠Box GTS radio fitment from 2019-later Touring to 2014-later Touring. GTS radios…
- TECHNICAL TIP TT430
TWIN-COOLED SYSTEM DIAGNOSTICS. PURPOSE: Revision. Updated Basic Operation, Cooling System Pressure Cap, Loss of Coolant from Right Fairing Lower Overflow Hose for all Twin-Cooled Touring and Trike models with symptoms…
- TECHNICAL TIP TT466
UPDATED OIL PUMP FOR MILWAUKEE-EIGHT ENGINES. PURPOSE: Revision. To notify dealers that a new oil pump was put into production on some late 2019 and all 2020 Milwaukee-Eight® engines, all models. The new oil pumps are…
Other years of this model
Questions and answers
What are the most common problems with the 2018 Harley-Davidson Touring?
There are no owner complaints in the NHTSA data for this year; the data comes from 9 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2018 Harley-Davidson Touring?
NHTSA lists 9 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2018 Harley-Davidson Touring from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2018 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.