NHTSA (USA)High Risk
2021 HONDA REBEL 1100NHTSA Campaign #21V987000
The official notice
Defect
Honda (American Honda Motor Co.) is recalling certain 2021 Honda Rebel 1100 (CMX1100) motorcycles. The radiator cap may have been improperly formed during manufacturing, which could create an insufficient seal.
Safety Risk
An insufficiently sealed radiator cap may leak or spray hot coolant, increasing the risk of injury or crash.
Remedy
Dealers will replace the radiator cap and refill any lost coolant, free of charge. Owner notification letters were mailed February 22, 2022. Owners may contact Honda service at 1-888-234-2138. Honda's number for this recall is KN1.
1,022 vehicles affectedMfr ref: KN1Updated June 10, 2026