2008 Toyota RAV4 Owners Manual - Page 343

'08 Rav4_U (L/O 0802) Iridium −tipped spark plugs (2.4 L 4 −cylinder [2AZ −FE] engine) Iridium −tipped spark plugs (3.5 L V6 [2GR −FE] engine) Brake system The tandem master cylinder brake system is a hydraulic system with two separate sub−systems. If either sub−system should fail, the other will still work. However, the pedal will be harder to press, and your stopping distance will increase. Also, the brake system warning light may come on. CAUTION Do not drive your vehicle with only a single brake system. Have your brakes fixed immediately. Your engine is fitted with iridium−tipped spark plugs. Your engine is fitted with iridium−tipped spark plugs. BRAKE BOOSTER The brake booster uses engine vacuum to power −assist the brakes. If the engine should quit while you are driving, you can bring the vehicle to a stop with normal pedal pressure. There is enough reserved vacuum for one or two stops-but no more! NOTICE Use only iridium−tipped spark plugs. Do not adjust gaps for engine performance or smooth driveability. NOTICE Use only Toyota genuine iridium− tipped spark plugs. Do not adjust gaps for engine performance or smooth driveability. For details about the spark plug type, see "Service specifications" on page 429 in Section 8. 315 2008 RAV4 from Feb. '08 Prod. (OM42726U)