See also:

Reporting safety defects (U.S. only)
If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTS ...

Conditions
• Heavily loading a vehicle may reduce fuel economy at any speed. • Carrying unnecessary weight may reduce fuel economy (approximately 1 mpg [0.4 km/L] is lost for every 400 lb [180 kg] of weight c ...

Collision warning system limitations
Due to the nature of radar technology, there may be certain instances where vehicles will not provide a collision warning. These include: • Stationary or slow moving vehicles below 6 mph (10 km/h ...