2001 Toyota Prius Owners Manual - Page 204

Does your vehicle need repairing? Engine oil level Check the level on the dipstick with the engine turned off and the vehicle parked on a level spot. See page 208 in Section 8-2 for additional information. Exhaust system If you notice any change in the sound of the exhaust or smell exhaust fumes, have the cause located and corrected immediately. (See engine exhaust cautions on page 150 in Section 3.) Be on the alert for changes in performance, sounds, and visual tip-offs that indicate service is needed. Some important clues are as follows: If you notice any of these clues, take your vehicle to your Toyota dealer as soon as possible. It probably needs adjustment or repair. D D D D Engine missing, stumbling, or pinging Appreciable loss of power Strange engine noises A fluid leak under the vehicle (however, water dripping from the air conditioning after use is normal.) indicate a dangerous carbon monoxide leak. Drive with the windows open and have the exhaust system checked immediately.) CAUTION Do not continue driving with the vehicle unchecked. It could result in serious vehicle damage and possibly personal injury. D Change in exhaust sound (This may D Flat-looking tire; excessive tire squeal when cornering; uneven tire wear D Vehicle pulls to one side when driving straight on a level road D Strange noises related to suspension movement D Loss of brake effectiveness; spongy feeling brake pedal; pedal almost touches floor; vehicle pulls to one side when braking D Coolant temperature continually higher than normal. 197