Honda Rebel 1100 radiator cap may leak hot coolant

NHTSA campaign 21V987000 · Reported Dec 16, 2021 · Honda (American Honda Motor Co.)

high How serious is it? About this label

A coolant leak or spray can increase the risk of injury or a crash. The notice does not tell owners to stop driving.

Key facts

NHTSA campaign number	21V987000
Reported to NHTSA	Dec 16, 2021
Manufacturer	Honda (American Honda Motor Co.)
Part affected	Engine And Engine Cooling:cooling System:radiator Assembly
Vehicles covered	1 model/year combination, model years 2021
Do-not-drive advisory	No
Park-outside advisory	No
Repair	Free at any franchised dealer

What's wrong, in plain English

The radiator cap on some Honda Rebel 1100 motorcycles may not have been formed correctly during manufacturing. This can leave the cap without a tight enough seal. Because the seal may not be tight enough, hot coolant could leak out or spray from the radiator. This creates a risk of injury or of being involved in a crash while riding.

What you should do

1) Check your VIN at nhtsa.gov/recalls. 2) Contact a Honda dealer, or call Honda service at 1-888-234-2138. 3) The repair is free.

Where do I find my VIN, and what do I tell the dealer?

Your VIN is the 17-character code on the lower left of the windshield, on your registration and usually on your insurance card. Enter it at nhtsa.gov/recalls to see whether this recall is still open on your car. When you call the dealer, say you have an open safety recall and give them NHTSA campaign number 21V987000. More in how recalls work.

Affected vehicles (1)

2021 Honda Rebel 1100

Who to contact

Honda — official Honda recall lookup

Customer service: 1-888-234-2138

Any franchised dealer for the brand can do the repair. Phone numbers are taken from manufacturer sites and recent NHTSA notices; if one has changed, the number in your own recall letter is the one to use.

The bigger picture

Honda Engine Recalls Cover Stalling, Oil Leaks and Rear Wheel Lockup · all 11 Honda recalls in this area

Official notice

Component: ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY
Summary: 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.

Verify your specific vehicle by VIN at nhtsa.gov. Recall repairs are free of charge by law.