Tire Inflation Pressures; Tire Pressures For High Speed Operation - Chrysler 300 2017 User Manual

M A I N T A I N I N G Y O U R V E H I C L E

Tire Inflation Pressures

The proper cold tire inflation pressure is listed on the driver's side B-Pillar or rear edge of the
driver's side door.
At least once a month:
• Check and adjust tire pressure with a good quality pocket-type pressure gauge. Do not make
a visual judgement when determining proper inflation. Tires may look properly inflated even
when they are under-inflated.
• Inspect tires for signs of tire wear or visible damage.
After inspecting or adjusting the tire pressure, always reinstall the valve stem cap. This will
prevent moisture and dirt from entering the valve stem, which could damage the valve stem.
Inflation pressures specified on the placard are always "cold tire inflation pressure". Cold tire
inflation pressure is defined as the tire pressure after the vehicle has not been driven for at least
three hours, or driven less than 1 mile (1.6 km) after sitting for a minimum of three hours. The cold
tire inflation pressure must not exceed the maximum inflation pressure molded into the tire
sidewall.
Check tire pressures more often if subject to a wide range of outdoor temperatures, as tire
pressures vary with temperature changes.
Tire pressures change by approximately 1 psi (7 kPa) per 12°F (7°C) of air temperature change.
Keep this in mind when checking tire pressure inside a garage, especially in the Winter.
Example: If garage temperature = 68°F (20°C) and the outside temperature = 32°F (0°C) then
the cold tire inflation pressure should be increased by 3 psi (21 kPa), which equals 1 psi (7 kPa) for
every 12°F (7°C) for this outside temperature condition.
Tire pressure may increase from 2 to 6 psi (13 to 40 kPa) during operation. DO NOT reduce this
normal pressure build up or your tire pressure will be too low.

Tire Pressures For High Speed Operation

The manufacturer advocates driving at safe speeds and within posted speed limits. Where speed
limits or conditions are such that the vehicle can be driven at high speeds, maintaining correct tire
inflation pressure is very important. Increased tire pressure and reduced vehicle loading may be
required for high-speed vehicle operation. Refer to your authorized tire dealer or original
equipment vehicle dealer for recommended safe operating speeds, loading and cold tire inflation
pressures.
High speed driving with your vehicle under maximum load is dangerous. The added strain on
your tires could cause them to fail. You could have a serious collision. Do not drive a vehicle
loaded to the maximum capacity at continuous speeds above 75 mph (120 km/h).
CAUTION!
WARNING!
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