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Campaign 20V300 Posted May 23, 2020 39 units

2019-2020 Aev Traumahawk Recall 20V300: Brake Line

RN
Reviewed by the RecallNotify editorial team
Published May 24, 2026

Recall 20V300 affects 39 2019-2020 Aev Traumahawk ambulances for rear brake line routing that can cause wear. Repair is free at any franchised Aev dealer.

Aev is recalling 39 2019-2020 Traumahawk Type 1 ambulances because the rear brake caliper flexible line can contact a suspension component and wear through. Brake fluid leakage can cause partial or complete loss of the rear brakes, increasing crash risk; Aev dealers will complete the recall repair free of charge.

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What's wrong?

The rear brake caliper flexible line on the 2019-2020 Aev Traumahawk ambulance is a flexible brake hose at the rear brake caliper. It carries brake fluid through a moving area near the rear suspension, so the rear brakes can still work while the suspension travels over bumps and load changes.

On affected ambulances equipped with the LiquidSpring adaptive rear suspension, that flexible line was routed too close to a suspension component during installation. As the suspension moves, the line can contact the component and wear through its outer surface. If the hose wears far enough, brake fluid pressure at the rear caliper can drop and the ambulance can lose rear braking.

There is no warning sign before failure. An inspection is needed because the problem is about hose routing and wear at the rear suspension, not a normal dashboard alert or driver symptom.

Who's affected?

The scope combines 2019 and 2020 Traumahawk vehicles with three Liquid Spring suspension models tied to the brake hose, hydraulic brake system, and rear suspension.

2019 Aev Traumahawk hydraulic brake hose
2019 Aev Traumahawk hydraulic brake system
2019 Aev Traumahawk rear suspension
2020 Aev Traumahawk hydraulic brake hose
2020 Aev Traumahawk hydraulic brake system
Units affected39
Field incidentsNHTSA has logged no field incidents to date.

A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific vehicle is included.

What's the safety risk?

A worn rear brake caliper flexible line can leak brake fluid, reducing or eliminating rear braking and increasing the risk of a crash. Treat any brake fluid leak or reduced braking as a reason to park safely and call the dealer. Repair is free at any franchised Aev dealer.

What should I do?

  1. Check your VIN to confirm your 2019-2020 Aev Traumahawk, DS135RS3-DM, DS135RS3A, or DS135RS3AF is included in this recall.
  2. Contact a franchised Aev dealer to schedule the free rear brake line inspection and mounting-kit repair that keeps the brake line away from the suspension component.
  3. Bring the recall notice if Aev mailed one. If not, reference recall number 20V300 when you call.
  4. Drive cautiously until the inspection and repair are complete; leave extra following distance and watch for brake-fluid leaks or reduced rear braking.

What happens at the repair

At the dealer, an Aev technician inspects the rear brake caliper flexible lines for wear. The technician installs a kit that changes how the flexible lines are mounted, so the brake line stays clear of the suspension component. If a line is already worn, the dealer replaces the brake line with the replacement kit. The inspection, mounting kit, replacement kit when needed, and labor are free under recall 20V300.

Timeline

May 23, 2020 NHTSA published the recall
June 23, 2020 Owner notification mailed
June 23, 2020 Dealer notification began
June 23, 2020 Interim owner notification (was planned for this date)
July 23, 2020 Dealer notification ended

Frequently asked questions

What is recall 20V300?

Recall 20V300 covers 39 2019-2020 Aev Traumahawk ambulances with Liquid Spring suspension systems where the rear brake caliper flexible line contacts a suspension component. Wear on that brake line can cause brake fluid leakage and partial or complete loss of the rear brakes.

What should I do if my 2019-2020 Aev Traumahawk is on this recall?

Check your VIN to confirm your specific ambulance is included in recall 20V300. If it is, contact a franchised Aev dealer to schedule the inspection and brake-line mounting kit installation. Reference recall 20V300 when you call. The repair is free.

Is the recall repair free?

Yes. Federal recall law requires the defect to be repaired at no cost. Dealers will inspect the rear brake caliper flexible lines, install a kit to modify the brake-line mounting, and replace worn brake lines when needed, free of charge.

What is the safety risk?

The safety risk is brake fluid leakage and partial or complete loss of the rear brakes, increasing crash risk. If your VIN is included, arrange the free dealer repair before returning the ambulance to regular service.

What if I bought this Aev Traumahawk used?

The recall still follows the vehicle. Check your VIN to confirm whether your specific ambulance is included, even if you never received an owner letter. If it is included, a franchised Aev dealer must complete the recall repair for free.

More information

NHTSA campaign pagenhtsa.gov/vehicle-recalls/20V300000
Aev customer service1-800-447-0343
NHTSA recall #20V300
NHTSA recall # (full)20V300000

Source documents

This article is generated from NHTSA's primary recall filings and reviewed against the source on May 24, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →