Recall 11V493000

Tire Pressure Monitoring System Malfunctions

Recall Details

The tire pressure monitoring system warning light may not come on or stay on for appropriate lengths of time. Dealers will reprogram the tire pressure monitoring unit free of charge to resolve the concern.

Our Quick Take

The system that monitors tire air pressure may malfunction and not illuminate a warning light all times low pressure is noticed. This can result in unintended low air pressure or imminent tire failure that goes unnoticed.

What Should You Do?

Mercedes Benz notified owners of affected vehicles starting in September 2014. You can check with your dealer to see if your vehicle is involved in this program. It is helpful to have your VIN (Vehicle Identification Number) on hand when you contact them.

Affected Cars

Suspension & Steering, October 03, 2011

Original Recall from the NHTSA

Manufacturer's Report Date
October 03, 2011
NHTSA Action Number
Potential Number of Units Affected
Mercedes-Benz USA, LLC (Mercedes Benz) is recalling certain model year 2011-2012 S550, S550 CGI, S63, S600 Bi-Turbo, S65 AMG, S550 4-Matic, and S550 CGI 4-Matic and S400 Hybrid vehicles manufactured from March 3, 2011, through July 30, 2011, for failing to comply with the requirements of Federal Motor Vehicles Safety Standard (FMVSS) number 138, "Tire Pressure Monitoring System (TPMS)." The tire pressure monitoring system indicators may only illuminate for a portion of the time required by the standard and under certain conditions may not re-illuminate immediately after the vehicle is restarted as required.
If all four wheel sensors in the subject vehicles are simultaneously malfunctioning or missing, the TPMS will provide an initial warning, but this warning will not automatically repeat on subsequent ignition cycles, failing to remind the driver that the system is offline. Driving unknowingly with incorrectly inflated tires may result in sudden tire failure, increasing the risk of a crash.
Mercedes Benz will notify owners, and dealers will reprogram the tire pressure monitoring unit, free of charge. The recall is expected to begin in September 2014. Owners may contact Mercedes Benz at 1-800-367-6372.
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
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Recall data provided by the National Highway Traffic Safety Administration