Lexus GS 300 Workshop Manuals and Repair Manuals

To change a flat tire on a Lexus GS 300, first find a safe location away from traffic. Engage the parking brake and place wheel chocks behind the wheels to prevent the vehicle from rolling. Locate the spare tire, jack, and lug wrench in the trunk. Use the lug wrench to loosen the lug nuts on the flat tire, then use the jack to lift the vehicle off the ground. Remove the lug nuts, take off the flat tire, and replace it with the spare tire. Secure the lug nuts, lower the vehicle, and then tighten the lug nuts further using the lug wrench.

To change the engine air filter in a Lexus GS 300, first, locate the air filter housing, which is typically a rectangular or square-shaped box near the engine. Open the housing by unlatching the clips or removing screws. Remove the old air filter and discard it. Clean any debris or dirt from the air filter housing before installing the new filter. Place the new air filter in the housing and ensure it fits securely. Close the housing and secure the clips or screws to complete the replacement.

To check and refill the coolant in a Lexus GS 300, first make sure the engine is cool. Locate the coolant overflow tank, typically translucent and labeled with "COOLANT" or "ENGINE COOLANT." The tank will have markings indicating the minimum and maximum coolant levels. Ensure the coolant level is between these markings. If the coolant level is low, add a mixture of coolant and distilled water to the overflow tank until it reaches the appropriate level. Be cautious not to overfill the tank, as excessive coolant can lead to system damage.

To check the automatic transmission fluid level in a Lexus GS 300, first, park the vehicle on a level surface and ensure the engine is idling. Locate the transmission dipstick, typically located near the back of the engine bay. Pull out the dipstick, wipe it clean, reinsert it, and then pull it out again to check the fluid level. The dipstick will have markings indicating the proper fluid level range. Ensure the fluid is within this range to ensure smooth and efficient operation of the transmission.

To check the brake fluid level in a Lexus GS 300, first, locate the brake fluid reservoir, typically located near the back of the engine bay on the driver's side. The reservoir is translucent and labeled with "BRAKE FLUID." Ensure the vehicle is on a level surface and the engine is turned off. Remove the cap from the reservoir and check the fluid level. The reservoir will have markings indicating the minimum and maximum levels. Ensure the fluid is between these markings to ensure proper brake system operation.

To check the engine oil level in a Lexus GS 300, first ensure that the vehicle is on a level surface and the engine is turned off. Locate the engine oil dipstick, typically labeled with a yellow or orange handle, and remove it. Wipe off the dipstick, reinsert it into the engine, and then pull it out again to check the oil level. The dipstick will have markings indicating the minimum and maximum oil levels. Make sure the oil level falls within this range to ensure proper lubrication of the engine.

To jump-start a Lexus GS 300, first, park a vehicle with a charged battery close enough to reach the dead battery with jumper cables. Ensure both vehicles are turned off and the parking brakes are engaged. Connect one end of the positive (red) jumper cable to the positive terminal of the dead battery. Connect the other end of the positive jumper cable to the positive terminal of the charged battery. Connect one end of the negative (black) jumper cable to the negative terminal of the charged battery. Finally, connect the other end of the negative jumper cable to a grounded metal surface on the dead vehicle, such as an unpainted bolt or bracket. Start the charged vehicle and let it run for a few minutes to charge the dead battery. Attempt to start the dead vehicle. Once started, remove the jumper cables in the reverse order of connection.

To replace a headlight bulb in a Lexus GS 300, first, open the hood and locate the back of the headlight assembly. Carefully disconnect the electrical connector from the back of the bulb. Twist the bulb counterclockwise and remove it from the headlight assembly. Install the new bulb by twisting it clockwise into the assembly. Reconnect the electrical connector and test the new headlight bulb before closing the hood.

To replace the cabin air filter in a Lexus GS 300, first, locate the cabin air filter housing, which is usually located behind the glove compartment or under the dashboard. Open the housing by releasing the clips or removing screws. Take out the old cabin air filter and dispose of it. Clean any debris or dust from the housing before inserting the new filter. Place the new filter in the housing, ensuring it fits properly. Close the housing and secure the clips or screws to complete the replacement.

To replace the serpentine belt in a Lexus GS 300, first, locate the belt routing diagram, typically found on a decal or sticker near the engine. Take note of the routing to assist in installing the new belt correctly. Locate the tensioner pulley, which is responsible for maintaining tension on the belt. Use a wrench or socket to rotate the tensioner pulley, relieving tension on the belt. Slide the old belt off the pulleys, then slide the new belt onto the pulleys, following the correct routing as per the diagram. Rotate the tensioner pulley again to allow the new belt to slip onto the final pulley. Double-check the belt's alignment and tension before starting the engine.

To replace the windshield wiper blades on a Lexus GS 300, first, lift the wiper arm away from the windshield. Locate the small tab or release mechanism on the wiper blade assembly. Press or slide the tab to release the blade from the wiper arm. Slide the old blade out of the assembly and insert the new blade. Ensure it is securely attached, then lower the wiper arm back onto the windshield. Repeat the process for the other wiper blade.

To reset the maintenance light in a Lexus GS 300, turn the ignition switch to the "ON" position without starting the engine. Locate the trip meter reset button on the instrument panel and hold it down. While holding the button, switch the ignition to the "OFF" position, then back to the "ON" position. Continue holding the trip meter reset button until the maintenance light turns off, indicating that the reset is complete.

The air filter in a Lexus GS 300 should be replaced every 15,000 to 30,000 miles or as recommended by the manufacturer. The air filter is responsible for filtering out dirt, dust, and debris from the incoming air that enters the engine, ensuring clean air reaches the combustion chamber. Regularly changing the air filter will help maintain optimal engine performance and fuel efficiency.

The brake pads in a Lexus GS 300 should be replaced approximately every 30,000 to 70,000 miles, depending on driving habits and conditions. It is important to monitor the thickness of the brake pads regularly, as worn-out brake pads can compromise braking performance and safety. If the brake pads have less than 1/8 inch of pad material remaining, it is recommended to have them replaced by a qualified technician.