A damaged regular tire with low or missing tire
inflation pressure impacts handling, such as
steering and braking response. Run-flat tires
can maintain limited stability. There is a risk of
an accident. Do not continue driving if the vehi‐
cle is equipped with normal tires. Follow the in‐
formation on run-flat tires and continued driving
with these tires.
Indication of a flat tire
A yellow warning light is illuminated in
the instrument cluster.
In addition, a symbol with a Check Control mes‐
sage appears on the Control Display.
Symbol Possible cause
There is a flat tire or a major loss in
tire inflation pressure.
Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneu‐
2. Check whether the vehicle is fitted with nor‐
mal tires or run-flat tires.
Run-flat tires, refer to page 304, are labeled
with a circular symbol containing the letters
RSC marked on the tire's sidewall.
Actions in the event of a flat tire
Identify the damaged tire.
To do this, check the tire inflation pressure in
all four tires, for instance using the tire pres‐
sure gage of a flat tire kit.
If the tire inflation pressure in all four tires is
correct, the Flat Tire Monitor may not have
been initialized. In this case, initialize the sys‐
If identification of flat tire damage is not pos‐
sible, please contact a dealer’s service center
or another qualified service center or repair
2. Repair the flat tire, e.g., with a flat tire kit or by
changing the wheel.
Your vehicle handles differently with a run-flat
with no or low inflation pressure; for instance,
your lane stability when braking is reduced,
braking distances are longer and the self-steer‐
ing properties will change. There is a risk of an
accident. Drive moderately and do not exceed a
speed of 50 mph/80 km/h.
Heavy trailers can start swinging when continu‐
ing to drive with a flat tire. There is a risk of ac‐
cidents or risk of damage to property. Do not
exceed a speed of 35 mph/60 km/h when driv‐
ing with a trailer and a flat tire. Immediately
brake in the case of swinging. Apply necessary
steering corrections as carefully as possible.
You may continue driving with a damaged tire at
speeds up to 50 mph/80 km/h.
Wheels and tires
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