Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Parking Brake, Checking
Pay attention to the instructions on the test stand screen.
Activating >>T U V mode<< :
- The seat belt is buckled.
- Rear axle in the one-axle roller test stand
- Ignition is switched off
- Auto Hold is off.
- The front wheels must be stationary.
- The rear wheel must rotate for at least 5 seconds non-stop between 2.5 and 9 km/h (1.6 and 5.6 mph)
>>T U V mode<< is indicated when the yellow Electric Parking/Hand Brake Malfunction Indicator Lamp -K214- is displayed.
-- The yellow electro-mechanical parking brake symbol with a line through it appears in the instrument cluster. Refer to the appropriate Service Information; Instruments and Indicator Lamps.
- The electromechanical parking brake does not lock all the way in the >>T U V mode<< immediately.
- Operating the Electro-Mechanical Parking Brake Button -E538- three to four times increases the tension in stages.
- Operating the Electro-Mechanical Parking Brake Button -E538- a fifth time loosens the electro-mechanical parking brake.
Ending >>T U V mode<< :
- Front wheels, speed greater than 0 km/h (0 mph)
- Rear wheels, speed less than 2.5 km/h (1.6 mph) or greater than 9 km/h (5.6 mph)
- Ignition off.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.