2006 Lexus LS 430 Owners Manual - Page 335

5-1. Essential information If you think something is wrong If you notice any of the following symptoms, your vehicle probably needs adjustment or repair. Contact your Lexus dealer as soon as possible. n Visible symptoms Look for any of the following 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 n Audible symptoms Listen for any of the following symptoms. • Change in exhaust sound • Excessive tire squeal when cornering • Strange noises related to suspension system • Pinging or other noises related to engine n Problems with operation Check for any of the following symptoms Engine missing, stumbling or running rough Appreciable loss of power Vehicle pulls to heavily one side when braking Vehicle pulls to heavily one side when driving on a level road Loss of brake effectiveness, spongy feeling, pedal almost touches floor 324