When trouble arises

If you think something is wrong

~1min read

If you notice any of the following symptoms, your vehicle probably needs adjustment or repair. Contact your Toyota dealer as soon as possible.

Visible symptoms

  • Fluid leaks under the vehicle (Water dripping from the air conditioning after use is normal.)
  • Flat-looking tires or uneven tire wear
  • Engine coolant temperature gauge needle continually points higher than normal

Audible symptoms

  • Changes in exhaust sound
  • Excessive tire squeal when cornering
  • Strange noises related to the suspension system
  • Pinging or other noises related to the engine

Operational symptoms

  • Engine missing, stumbling or running rough
  • Appreciable loss of power
  • Vehicle pulls heavily to one side when braking
  • Vehicle pulls heavily to one side when driving on a level road
  • Loss of brake effectiveness, spongy feeling, pedal almost touches the floor

Test yourself

A quick Toyota Sienna quiz: every answer comes with an explanation and a link to the manual page.