Recall 23V484 affects 652 2019-2020 McLaren 600LT vehicles for coolant-hose leaks that increase fire risk. Repair is free at any franchised McLaren dealer.
McLaren is recalling 652 2019-2020 600LT Coupe and Spider vehicles under recall 23V484 because the temperature sensor housing joint for an outboard radiator hose was not sealed properly. Coolant can leak into the engine compartment and contact hot components, raising the risk of a fire; McLaren dealers will complete the repair free of charge.
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What's wrong?
On the 2019-2020 McLaren 600LT, the upper radiator hose carries coolant from the outboard radiator through the engine cooling system. The joint at issue is where that hose connects to the temperature sensor housing, the fitting that holds a sensor used to read coolant temperature. That connection has to stay sealed as the hose, coolant, and engine bay heat up and move.
On affected 600LT Coupe and Spider vehicles, the joint design does not hold the hose and sensor housing together tightly enough under all operating conditions. McLaren found that the connection lacks enough tolerance for the loads placed on it. When the seal at that joint opens, coolant leaks into the engine compartment instead of staying inside the cooling system.
There is no warning sign before failure. An owner who sees coolant under the vehicle or smells coolant from the engine compartment should stop driving and have the vehicle checked.
Who's affected?
Covers the 600LT across the 2019 and 2020 model years, with the same radiator assembly component listed for both.
| 2020 McLaren 600LT | Radiator assembly |
|---|---|
| 2019 McLaren 600LT | Radiator assembly |
| Units affected | 652 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific coupe is included.
What's the safety risk?
A coolant leak near hot engine parts or another ignition source can raise the risk of a fire. Schedule the repair soon, and ask the dealer whether the vehicle is safe to drive until service. Repair is free at any franchised McLaren dealer.
What should I do?
- Check your VIN to confirm your 2019-2020 McLaren 600LT is included in this recall.
- Contact your nearest franchised McLaren dealer to schedule the free coolant-hose, temperature-sensor-housing, and clamp replacement that seals the radiator hose joint and stops coolant from leaking into the engine compartment.
- Bring the recall notice McLaren mailed, or reference recall number 23V484 when you call.
- Avoid driving the vehicle if coolant is leaking into the engine compartment; contact the dealer before moving it.
What happens at the repair
At the dealer, a McLaren technician replaces the coolant hose, temperature sensor housing, and constant pressure clamp. Parts and labor are covered under the recall, so the dealer repair is free. McLaren has a general reimbursement plan on file for eligible out-of-pocket repairs paid before the recall notice. Bring any related repair paperwork to the service desk and ask how McLaren handles documented reimbursement claims for this campaign.
| Reimbursement | Reimbursement available |
|---|
Timeline
| July 14, 2023 | NHTSA published the recall |
|---|---|
| September 7, 2023 | Dealer notification began |
| September 7, 2023 | Dealer notification ended |
| September 7, 2023 | Owner notification mailed |
| September 7, 2023 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 23V484?
Recall 23V484 covers 652 2019-2020 McLaren 600LT Coupe and Spider vehicles with a coolant hose and temperature sensor housing joint that was not sealed properly. Coolant can leak into the engine compartment, and contact with hot engine components can increase fire risk.
What should I do if my 2019-2020 McLaren 600LT is on this recall?
Check your VIN to confirm your specific 600LT is included in recall 23V484. If it is, contact a franchised McLaren dealer to schedule the repair. Reference recall number 23V484 when you call. McLaren mailed owner letters on September 7, 2023.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and McLaren dealers will replace the coolant hose, temperature sensor housing, and constant pressure clamp free of charge.
What is the safety risk?
The safety risk is fire. The recalled joint can let coolant leak into the engine compartment. If that coolant reaches an ignition source, including hot engine components, the leak can increase the risk of a fire.
Who should I contact for this McLaren recall?
Contact a franchised McLaren dealer first to schedule the free recall repair. You can also call McLaren customer service at 1-646-429-8916 and reference recall number 23V484 if you need help confirming the repair path or arranging service.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/23V484000 |
|---|---|
| McLaren customer service | 1-646-429-8916 |
| NHTSA recall # | 23V484 |
| NHTSA recall # (full) | 23V484000 |
Source documents
-
Download Quarterly Report (PDF) - Download Owner Notice (PDF)
- Download Owner Notification Letter (PDF)
- Download Recall Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →