Recall 18V099 affects 1,322 2011-2018 Aev Traumahawk ambulances for an overheating battery isolator module. Repair is free at any franchised Aev dealer.
Aev is recalling 1,322 2011-2018 Traumahawk ambulances because the Vanner battery isolator module can overheat and cause connected equipment to fail. Overheating raises the risk of a fire, and equipment failure raises the risk of injury; the dealer repair will be free once available.
Does this recall apply to your specific vehicle?
The official, free per-VIN recall check is run by NHTSA. Enter your VIN and we'll forward you directly — and add you to a free watchlist so you hear about new recalls for your vehicle.
Check my VIN at NHTSARecallNotify doesn't check your VIN — NHTSA's official tool does. We use your email only to alert you to new recalls.
Watch this vehicle for recalls
Add it to your free watchlist and we will alert you as new federal recalls are posted for your year, make and model. New-recall alerts are rolling out now.
You are on the watchlist.
We will email you as new federal recalls are posted for your vehicle.
What's wrong?
The Vanner battery isolator module in the 2011-2018 Aev Traumahawk ambulance is part of the electrical system that manages battery power for the vehicle and its on-board ambulance equipment. Its normal job is to route power so critical equipment has a stable electrical supply while the vehicle battery system remains protected.
On affected Traumahawk ambulances, that module overheats. When it overheats, electrical equipment connected through the module can stop working, and the ambulance can lose use of on-board systems that depend on that power path. Vanner was still evaluating the exact cause, so the defect is tied to the module overheating rather than a confirmed internal part failure.
Owners or operators can notice inoperable on-board equipment before the failure is found. Another warning sign is automotive relay clicking, which sounds like repeated clicking from an electrical relay instead of normal equipment operation.
Who's affected?
Covers model years 2011 through 2018, with the same battery component listed for each year.
| 2011 Aev Traumahawk | battery |
|---|---|
| 2012 Aev Traumahawk | battery |
| 2013 Aev Traumahawk | battery |
| 2015 Aev Traumahawk | battery |
| 2016 Aev Traumahawk | battery |
| 2017 Aev Traumahawk | battery |
| 2018 Aev Traumahawk | battery |
| 2014 Aev Traumahawk | battery |
| Units affected | 1,322 |
The year and model narrow the list, but the VIN decides. Check your VIN to confirm whether your specific vehicle is included.
What's the safety risk?
An overheating battery isolator module increases the risk of fire. Equipment connected to the isolator can stop working, which increases injury risk if that equipment is needed during use. Inoperable on-board equipment or relay clicking is a reason to schedule service soon. Repair will be free at any franchised Aev dealer once available.
What should I do?
- Check your VIN to confirm your 2011-2018 Aev Traumahawk is included in this recall.
- Contact Aev customer service at 1-800-447-0343 to confirm owner-notice and repair timing for recall number 18V099.
- Ask a franchised Aev dealer about the free battery isolator module replacement that addresses overheating and connected equipment failure.
- Bring the recall notice if Halcore has mailed one, and reference recall number 18V099 when you call.
- Keep ambulance electrical loads limited until the repair is complete if the battery isolator module shows heat damage, smell, or equipment failure.
What happens at the repair
At the dealer, an Aev technician replaces the Vanner battery isolator module covered by recall 18V099. That module sits in the ambulance electrical system and is the part named in the recall remedy. Because the remedy status is not listed as available in the provided record, treat the final dealer repair as pending until the dealer confirms it is open. The dealer repair will be free once available.
Timeline
| February 8, 2018 | NHTSA published the recall |
|---|---|
| April 9, 2018 | Owner notification mailed |
Frequently asked questions
What is recall 18V099?
Recall 18V099 covers 1,322 2011-2018 Aev Traumahawk ambulances with a Vanner battery isolator module that can overheat and cause equipment failure. The safety risk in recall 18V099 is fire or injury if connected equipment stops working. Dealers replace the battery isolator module for free.
What should I do if my 2011-2018 Aev Traumahawk is on this recall?
Check your VIN to confirm your specific ambulance is included in recall 18V099. If it is, contact a franchised Aev dealer to schedule replacement of the battery isolator module. Reference recall number 18V099 when you call. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair this defect at no cost, and the remedy for recall 18V099 is replacement of the battery isolator module. Parts and labor are covered through a franchised Aev dealer.
What is the safety risk in recall 18V099?
The safety risk is fire or injury. In recall 18V099, the battery isolator module can overheat, and equipment connected to the isolator can stop working. For an ambulance, failed equipment creates a direct safety concern, so confirm the VIN and arrange the free dealer repair.
What if I bought my Aev Traumahawk used?
The free recall repair still applies. Federal recall law follows the vehicle, not the first owner. Check your VIN to confirm whether your Traumahawk is included in recall 18V099, then call a franchised Aev dealer and reference the recall number.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/18V099000 |
|---|---|
| Aev customer service | 1-800-447-0343 |
| NHTSA recall # | 18V099 |
| NHTSA recall # (full) | 18V099000 |
Source documents
-
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 →