Lexus GS 350 Workshop Manuals and Repair Manuals

To change the battery in a Lexus GS 350 key fob, you will need a small flathead screwdriver and a replacement CR2032 battery. Locate the small notch or slot on the edge of the key fob and insert the screwdriver. Gently pry open the key fob, separating the two halves. Carefully remove the old battery and insert the new battery, ensuring the positive (+) side is facing up. Snap the key fob back together, making sure the two halves align properly. Test the key fob to ensure it is functioning correctly.

To change the oil in a Lexus GS 350, begin by locating the oil drain plug underneath the vehicle and placing a drain pan underneath it. Remove the drain plug and allow the old oil to fully drain out. Replace the drain plug and then remove the oil filter, ensuring that the rubber gasket from the old filter is not stuck to the engine. Install a new oil filter and tighten it to the specified torque. Finally, refill the engine with the recommended amount and type of oil, checking the dipstick to ensure the oil level is correct.

To check the transmission fluid level in a Lexus GS 350, ensure the vehicle is parked on a level surface and the engine is warmed up. With the engine running, locate the transmission dipstick, usually located near the back of the engine compartment. Remove the dipstick, wipe it clean, reinsert it fully, and then remove it again to read the fluid level. The transmission fluid level should be within the designated range on the dipstick. If it's low, add the appropriate transmission fluid as recommended in the owner's manual.

To jump-start a Lexus GS 350, you will need a set of jumper cables and a donor vehicle with a charged battery. Connect one end of the positive (red) jumper cable to the positive terminal of the dead battery, then attach the other end to the positive terminal of the donor vehicle's battery. Connect one end of the negative (black) jumper cable to the negative terminal of the donor vehicle's battery, and the other end to a metal surface on the engine block of the dead vehicle - away from the battery. Start the donor vehicle and let it run for a few minutes, then attempt to start the Lexus GS 350. Once it starts, remove the jumper cables in the reverse order.

To replace a brake light bulb in a Lexus GS 350, open the trunk and locate the access panel behind the brake light assembly. Remove the panel by unscrewing or unclipping it. Twist the bulb socket counterclockwise and pull it out of the assembly. Remove the old bulb by gently pulling it straight out and insert the new bulb. Reinsert the bulb socket into the assembly, twist it clockwise to secure it, and then reattach the access panel.

To replace a headlight bulb in a Lexus GS 350, open the hood and locate the back of the headlight assembly. Twist and remove the rubber cover to access the bulb. Unplug the electrical connector from the bulb and remove the retaining clip or screws holding the bulb in place. Carefully remove the old bulb and insert the new bulb, ensuring it is securely seated. Reattach the retaining clip or screws, plug in the electrical connector, and replace the rubber cover.

To replace the cabin air filter in a Lexus GS 350, begin by locating the cabin air filter housing, which is usually located behind the glove compartment. Open the glove compartment and remove any contents or stops that may be blocking access to the housing. Unclip or unscrew the housing cover and remove it. Take out the old cabin air filter and replace it with a new one, ensuring it is properly aligned. Reattach the housing cover, secure it, and then close the glove compartment.

To replace the serpentine belt in a Lexus GS 350, locate the belt routing diagram under the hood or in the owner's manual. Using a wrench or tensioner tool, relieve tension on the belt by rotating the tensioner pulley. Once the tension is released, slip the belt off one of the pulleys. Carefully remove the old belt from the remaining pulleys. Install the new belt following the belt routing diagram, ensuring it is properly seated on each pulley. Finally, release the tensioner pulley to apply tension to the new belt.

To replace the spark plugs in a Lexus GS 350, start by locating the spark plug wires or ignition coil packs on top of the engine. Gently disconnect the wires or coil packs from the spark plugs. Use a spark plug socket and ratchet to remove the old spark plugs from the engine. Check the gap on the new spark plugs and adjust if necessary. Install the new spark plugs, tightening them to the recommended torque specification. Reconnect the spark plug wires or ignition coil packs, ensuring they are properly seated.

To replace the windshield wipers in a Lexus GS 350, lift the wiper arm away from the windshield and locate the release tab or button near the wiper blade. Press or release the tab/button while sliding the wiper blade away from the wiper arm. Align the new wiper blade's attachment mechanism with the wiper arm and slide it in until it clicks into place. Gently lower the wiper arm back onto the windshield. Repeat these steps for the other wiper blade.

To reset the maintenance light in a Lexus GS 350, insert the key into the ignition and turn it to the "ON" position without starting the engine. Locate the trip/reset button on the instrument panel and hold it down until the maintenance light begins to flash. Release the button and then press it again until the light turns off. The maintenance light should now be reset, indicating that the scheduled maintenance has been addressed.

When troubleshooting a Lexus GS 350 that won't start, start by checking the battery connections to ensure they are clean and secure. If the battery is fully charged and the connections are good, check the ignition system by turning the key to the "ON" position and listening for the sound of the fuel pump priming. If you don't hear the fuel pump, there may be an issue with the fuel pump or

The air filter in a Lexus GS 350 should be replaced every 30,000 to 45,000 miles, or as indicated by the maintenance schedule in the owner's manual. However, if you drive in dusty or dirty conditions, it is recommended to inspect and replace the air filter more frequently. A clogged or dirty air filter can restrict airflow to the engine, negatively impacting performance and fuel efficiency.

The recommended tire pressure for a Lexus GS 350 is typically between 32 and 35 PSI (pounds per square inch) for all four tires. However, it is crucial to refer to the tire information label located on the driver's side door jamb or the owner's manual for the specific recommended tire pressure for your vehicle. Proper tire pressure ensures optimal handling, fuel efficiency, and tire longevity.

The Lexus GS 350 requires the use of Toyota Super Long Life Coolant or an equivalent high-quality ethylene glycol-based coolant. It is essential to use the correct type of coolant to maintain the engine's optimal performance and prevent potential cooling system issues. Always refer to the owner's manual or consult a Lexus dealer to ensure you are using the appropriate coolant for your vehicle.