Recall 17V744 affects 1,076 2017 Mazda CX-5 vehicles for trailer wiring routed too close to the muffler. Repair is free at any franchised Mazda dealer.
Mazda is recalling 1,076 2017 CX-5 vehicles equipped with accessory trailer hitch wiring because the harness has too little clearance from the exhaust muffler. Contact with the muffler can damage the harness and leave trailer lights inoperative, increasing crash risk; Mazda dealers will complete the recall repair free of charge.
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What's wrong?
The trailer hitch wiring harness on the 2017 Mazda CX-5 carries electrical power and lighting signals from the SUV to an attached trailer. When it is routed correctly, the harness stays clear of hot exhaust parts so the trailer lights work without heat damage to the wiring.
On affected CX-5 vehicles, the harness was installed too close to the main exhaust muffler. Heat or direct contact with the muffler can melt the wire insulation. Once the insulation is damaged, the circuit can short and blow a fuse, which stops power from reaching the trailer lighting circuit.
There is no warning sign before failure. The issue was found after trailer lighting stopped working, but owners should not rely on that as an early signal because the harness damage has already happened by then.
Who's affected?
VINs have been searchable since January 20, 2018.
| 2017 Mazda CX-5 | Trailer hitches |
|---|---|
| 2017 Mazda CX-5 | wiring |
| Units affected | 1,076 |
| Field incidents | NHTSA has logged 2 field incidents to date. |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific SUV is included.
What's the safety risk?
Contact between the muffler and trailer wiring harness can damage the harness and leave trailer lights inoperative, increasing the risk of a crash. Before towing, confirm the trailer lights work, and stop towing if they do not. Schedule the recall repair soon. Repair is free at any franchised Mazda dealer.
What should I do?
- Check your VIN to confirm your 2017 Mazda CX-5 is included in this recall.
- Contact a franchised Mazda dealer to schedule the free trailer-hitch-harness repair that reroutes the wiring away from the muffler and replaces damaged harness wiring.
- Bring the recall notice if Mazda mailed one. If not, reference recall number 17V744 when you call.
- Avoid towing a trailer until the repair is complete, since damaged trailer wiring can leave trailer lights inoperative.
- Call Mazda customer service at 1-800-222-5500 with questions about scheduling or damaged trailer-hitch wiring.
What happens at the repair
At the dealer, a Mazda technician reroutes the trailer hitch wiring harness so it stays clear of the muffler. If heat or contact has damaged the harness, the technician replaces it. Parts and labor are free under the recall. If you already paid for trailer hitch harness repairs before the recall notice, ask Mazda customer service or the dealer how to submit documentation under Mazda's general reimbursement plan.
| Reimbursement | Reimbursement available |
|---|
Timeline
| November 21, 2017 | NHTSA published the recall |
|---|---|
| November 30, 2017 | Dealer notification began |
| November 30, 2017 | Dealer notification ended |
| January 20, 2018 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| January 20, 2018 | Interim owner notification (was planned for this date) |
| January 22, 2018 | Owner notification mailed |
Frequently asked questions
What is recall 17V744?
Recall 17V744 covers 1,076 2017 Mazda CX-5 vehicles with an accessory trailer hitch wiring harness routed too close to the exhaust muffler. Contact with the muffler can damage the harness and make trailer lights inoperative, increasing crash risk. Mazda dealers reroute the harness and replace damaged harnesses for free.
What should I do if my 2017 Mazda CX-5 is on this recall?
Check your VIN to confirm your specific CX-5 is included in recall 17V744. If it is, contact a franchised Mazda dealer to schedule the trailer hitch wiring harness inspection and rerouting. Reference Mazda recall number 1617K when you call. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires manufacturers to repair safety defects at no cost, and Mazda will reroute the trailer hitch wiring harness away from the muffler for free. If the harness is damaged, the dealer will replace it free of charge.
What is the safety risk?
The safety risk is loss of trailer lighting. If the trailer hitch wiring harness contacts the exhaust muffler, heat can damage the harness and make the trailer lights stop working. Drivers behind the trailer lose important braking and signal cues, increasing crash risk.
What if I bought my Mazda CX-5 used?
The free recall repair still applies. Recall coverage follows the vehicle, not the first owner. Check your VIN to confirm whether your specific 2017 CX-5 is included, then contact a franchised Mazda dealer and reference Mazda recall number 1617K.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/17V744000 |
|---|---|
| Mazda customer service | 1-800-222-5500 |
| NHTSA recall # | 17V744 |
| NHTSA recall # (full) | 17V744000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Misc. Document (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Quarterly Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 25, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →