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Mercedes G63 wiring may disable brakes and stability control

NHTSA campaign 23V097000 · Reported 2023-02-17 · Mercedes-Benz USA, LLC

high How serious is it? About this label

Losing anti-lock brakes and stability control makes a crash more likely, especially in an emergency stop or on slippery roads; Mercedes has not told owners to stop driving, but get it inspected soon.

What's wrong, in plain English

On some 2019-2021 Mercedes-Benz G550 and AMG G63 SUVs, a bundle of wires near the front axle can rub against the oil cooler until it wears through. Damaged wiring there can knock out the anti-lock brakes, which keep the wheels from locking up when you stop hard, and the stability control that helps the SUV stay pointed where you steer. A dealer will inspect the wiring and either add a protective cover or replace it, free.

What you should do

1. Check your VIN at nhtsa.gov/recalls to confirm your SUV is affected.
2. Contact your Mercedes-Benz dealer, or MBUSA customer service at 1-800-367-6372, and mention recall 2023030005.
3. Have the front axle wiring inspected and protected or replaced — at no charge.

Affected vehicles (1)

Who to contact

Mercedes-Benz — official Mercedes-Benz recall lookup

Customer service: 1-800-367-6372

Any franchised dealer for the brand can do the repair. Phone numbers are taken from manufacturer sites and recent NHTSA notices; if one has changed, the number in your own recall letter is the one to use.

The bigger picture

Official notice

Component
ELECTRICAL SYSTEM:WIRING
Summary
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2021 G550 and AMG G63 vehicles. The front axle wiring harness may chafe against an oil cooler and become damaged, which can cause a loss of anti-lock brakes (ABS) and electronic stability control (ESC).
Safety risk
A loss of anti-lock brakes or electronic stability control can increase the risk of a crash.
Remedy
Dealers will inspect and either install a protective sleeve or replace the front axle wiring harness, as necessary, free of charge. Owner notification letters were mailed April 10, 2023. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2023030005.

Verify your specific vehicle by VIN at nhtsa.gov. Recall repairs are free of charge by law.