Severity
Critical
CriticalActive
NHTSA recall · Reported December 16, 2021
HONDA 2021: ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY
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 co…
Compiled from official public sources by the editorial team.
Verify with NHTSA →
Honda recalled Honda (American Honda Motor Co.) is recalling certain 2021 Honda Rebel 1100 (CMX1100) mot… - a critical-severity action.
HONDA 2021: ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY was recalled by Honda in December 16, 2021. Reason: Honda (American Honda Motor Co.) is recalling certain 2021 Honda Rebel 1100 (CMX1100) motorcycles. The radia…. Remedy: Dealers will replace the radiator cap and refill any lost coolant, free of charge. Owner…. Verify recall #21V987000 with the NHTSA before acting.
The recall
Honda issued this critical-severity NHTSA recall-Honda (American Honda Motor Co.) is recalling certain 2021 Honda Rebel 1100 (CMX1100) motorcycles. The radia….
- Critical
- severity level
- December 16, 2021
- reported
Sourced from official NHTSA enforcement records. Verify recall #21V987000 with the agency before acting. Full product description, hazard, remedy, and related recalls are below.
Recall Insight
This NHTSA action (record #21V987000) was formally reported on December 16, 2021. It is classified under Critical severity, with a current status of Active. Honda is listed as the recalling firm. The number of affected units is not disclosed in the agency filing, which is common for drug and food recalls where lot-level tracking supersedes unit counts.
The documented reason for this recall is: 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. The specific hazard cited in the filing is: An insufficiently sealed radiator cap may leak or spray hot coolant, increasing the risk of injury or crash.. Distribution data in the federal record shows the product reached: United States. Distribution scope directly affects the consumer exposure window and determines whether a recall remains regional or escalates into a nationwide advisory. The remedy documented by the agency is: 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. Ho… - consumers holding this product should act on that instruction rather than relying on general guidance.
Within the same product category the archive holds 6 closely related recalls - clustering in a narrow category often points to a systemic quality-control or supplier issue rather than a one-off defect. Always verify the recall number against the official agency record before acting.
Vehicles recalls over time
Where this recall sits in its category - 7,642 vehicles recalls on record
Of 101,704 recalls in the database, 24,878 are high severity, 72,426 moderate, and 4,400 low. This recall is classified high severity.
Counts reflect market size and reporting activity, not inherent danger, we do not rank products by risk from raw recall volume.
Affected scope
Unknown
Related Recalls
6
0 from same agency
Product description
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.
Reason for recall
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.
Hazard
An insufficiently sealed radiator cap may leak or spray hot coolant, increasing the risk of injury or crash.
Remedy, what to do
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.
Recall Profile
| Attribute | Value |
|---|---|
| Agency | National Highway Traffic Safety Administration |
| Severity class | Critical |
| Status | Active |
| Recall number | 21V987000 |
| Date reported | December 16, 2021 |
| Date initiated | December 16, 2021 |
| Recalling firm | Honda |
| Affected scope | Not disclosed |
| Distribution | United States |
| Official source | NHTSA notice → |
Profile values are sourced directly from the official NHTSA enforcement record. Source: National Highway Traffic Safety Administration.
What to do with this recall
Dealers will replace the radiator cap and refill any lost coolant, free of charge. Owner notification letters were mailed Februa…
- Check the recall number (21V987000) and product description against the item you own. Search the archive
- Confirm the current status and remedy on the official NHTSA notice before acting. NHTSA notice
- This is a Class I (high-risk) recall, stop using the product immediately and follow the disposal or return instructions. What to do next
This page summarizes the official NHTSA record for research and awareness; it is not legal, medical, or safety advice. Verify with the issuing agency before acting.
Frequently Asked Questions
What product was recalled? ▼
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.. Recalled by Honda.
Why was this product recalled? ▼
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.
What should consumers do? ▼
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.
Which agency issued this recall? ▼
This recall was issued by the NHTSA on December 16, 2021. Severity: Critical. Recall number: 21V987000.
Where was the recalled product distributed? ▼
Distribution: United States.
How do I check if my product is affected by a recall? ▼
Check the product description and recall number (21V987000) against your product. Visit the official NHTSA website for the most current information. You can also use our Recall Checker tool to search by product name or brand.
How do I report an injury from a recalled product? ▼
Report injuries to the issuing agency: CPSC at SaferProducts.gov, NHTSA at nhtsa.gov/report-a-safety-problem, or FDA via MedWatch. Document the product (photos, model/serial numbers, purchase receipts) and seek medical attention. Injury reports help agencies track hazard patterns and may strengthen enforcement actions.
Nearby Recalls in This Category
Other recalls in the same product category, useful for spotting patterns across the same defect class or manufacturer.
CPSC Moderate
Yamazuki Recalls Youth All-Terrain Vehicles (ATVs) Due to Risk of Serious Injury or Death from Crash; Violate Mandatory…
Yongkang Ruihe Metal Products Co. Ltd., of China · 2026-06-25
CPSC Moderate
Joolz Recalls Aer2 Car Seat Adapters for Strollers Due to Risk of Serious Injury from Fall Hazard
· 2026-06-18
CPSC Moderate
Joolz Recalls Aer2 Car Seat Adapters for Strollers Due to Risk of Serious Injury or Death from Suffocation and Fall Haz…
CooCooBaby, of China · 2026-06-18
CPSC Moderate
Kawasaki Motors USA Recalls Model Year 2026 Teryx4 H2 and Teryx5 H2 Recreational Off-Road Vehicles Due to Impact and In…
Kawasaki Motors Manufacturing Corp., U.S.A., of Lincoln, Nebraska · 2026-06-11
CPSC Moderate
Yamaha Recalls Model Year 2021-2022 Fleet Golf Cars Due to Risk of Serious Injury or Death from a Crash Hazard
· 2026-06-11
Compare this recall with Yamazuki Recalls Youth All-Terrain Vehicles (ATVs) Due to R… →
Every figure on PlainRecalls is rendered directly from official FDA, CPSC and NHTSA recall records, no number is typed in by an editor. This recall: NHTSA, reported December 16, 2021. Severity classes follow each agency's own taxonomy (FDA Class I/II/III; CPSC and NHTSA by hazard type), and related-recall context is computed across the full archive. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of July 2026.