Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 1 of 1 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
Electrical System. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports1 fire reports0 injury reports
What owners actually said
1 reports
12,000 miles · Apr 16, 2010
Electrical SystemFire
TL*THE CONTACT OWNS A 2006 BIG DOG MASTIFF MOTORCYCLE. THE CONTACT WAS DRIVING APPROXIMATELY 35 MPH WHEN HE SMELLED A BURNING ODOR. HE NOTICED THAT THE VOLTAGE REGULATOR WAS ON FIRE. HE DROVE ONTO THE EMERGENCY LANE, TURNED THE VEHICLE OFF, CUT THE WIRE ON THE REGULATOR, AND THREW DIRT ON IT. HE ALSO DISCONNECTED THE BATTERY…
Read full complaint
TL*THE CONTACT OWNS A 2006 BIG DOG MASTIFF MOTORCYCLE. THE CONTACT WAS DRIVING APPROXIMATELY 35 MPH WHEN HE SMELLED A BURNING ODOR. HE NOTICED THAT THE VOLTAGE REGULATOR WAS ON FIRE. HE DROVE ONTO THE EMERGENCY LANE, TURNED THE VEHICLE OFF, CUT THE WIRE ON THE REGULATOR, AND THREW DIRT ON IT. HE ALSO DISCONNECTED THE BATTERY. THE VEHICLE WAS TOWED TO THE CONTACTS HOME. HE CALLED AN AUTHORIZED DEALER BUT WAS INFORMED THAT HIS VEHICLE WAS NOT INCLUDED IN RECALL 07V356000 (ELECTRICAL SYSTEM: ALTERNATOR / GENERATOR/ REGULATOR . THE CURRENT AND FAILURE MILEAGES WERE APPROXIMATELY 12,000.
NHTSA ODI #10326040
Official recalls
0
No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0
No exact-year investigations in this snapshot.
2006 Big Dog Mastiff Problems, Complaints & Recalls | Skip That Year
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