Vehicle recall 20V300000 · May 23, 2020
AEV Traumahawk, Liquid Spring DS135RS3-DM and 2 more models
The rear brake caliper flexible line may have been routed so that it contacts a suspension component, possibly causing excessive wear and a loss of rear brakes.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- Halcore Group, Inc. (Halcore) is recalling certain 2019-2020 American Emergency Vehicle TraumaHawk Type 1 ambulances built on RAM 4500 and 5500 chassis equipped with Compressible Liquid Adaptive Suspension Systems (C.L.A.S.S.), part numbers DS135RS3A, DS135RS3AF, DS135RS3-DM. The rear brake caliper flexible line may have been routed so that it contacts a suspension component, possibly causing excessive wear and a loss of rear brakes. The affected system component is the rear brake caliper flexible line which may be causing brake caliper to wear due to contact suspension components.
- Consequence
- A worn rear brake caliper flexible line may cause brake fluid leakage which may result in a partial or complete loss of the rear brakes, increasing the risk of a crash.
- Remedy
- Halcore will notify owners, and dealers will inspect the rear brake caliper flexible lines for wear and install a kit to modify the rear brake caliper flexible line mounting, and if necessary, a kit to replace worn brake lines, free of charge. Owners may contact Halcore customer service at 1-800-447-0343.
- Notes
- Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Recall details
- NHTSA campaign
- 20V300000
- Reported to NHTSA
- May 23, 2020
- Filed by
- Halcore Group, Inc.
- Owner notification
- June 23, 2020
- Vehicles potentially affected
- 39
- Initiated by
- the manufacturer
- Components
- Service brakes, hydraulic › Foundation components › Hoses, lines/piping, and fittings; Service brakes, hydraulic; Suspension › Rear
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
- AEV Traumahawk (2019-2020): 2020, 2019
- Liquid Spring DS135RS3-DM (model year not listed)
- Liquid Spring DS135RS3A (model year not listed)
- Liquid Spring DS135RS3AF (model year not listed)
Has your AEV been repaired?
Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.
NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A AEV dealer can also check your VIN. Recall repairs are free.