Lexus ES350 2023 Hood and Engine Maintenance User Manual

Introduction

Impressive luxury sedan with a strong engine and a modern design is the Lexus ES350 2023. Maintaining your Lexus ES350 2023’s engine and hood properly is crucial to keeping it operating at its peak performance.

1. Upkeep of the Hood: The hood of your Lexus ES350 2023 is essential for shielding the engine and other parts from damage. To avoid potential damage, it’s crucial to keep the hood in good shape and take care of any problems right away.
2. Engine upkeep: Your car’s engine is its beating heart, so keeping it well-maintained is crucial to keeping it in good working order. Regular engine maintenance entails a variety of tasks like examining belts and hoses, replacing filters, and checking fluid levels.

Hood

Opening the hood

1. Pull the hood lock release lever. The hood will pop up slightly.
2. Pull up the auxiliary catch lever and lift the hood.

WARNING
Pre-driving check

Check that the hood is fully closed and locked.
If the hood is not locked properly, it may open while the vehicle is in motion and cause an accident, which may result in death or serious injury.

Positioning a floor jack

When using a floor jack, follow the instructions in the manual provided with the jack and perform the operation safely.
When raising your vehicle with a floor jack, position the jack correctly. Improper placement may damage your vehicle or cause injury.

Location of the jack point

Front

Rear

2WD models

AWD models

Engine compartment

Components
2GR-FKS engine

1. Fuse boxes
2. Engine oil filler cap
3. Engine oil level dipstick
4. Battery
5. Brake fluid reservoir
6. Radiator
7. Electric cooling fan Condenser
8. Engine coolant reservoir
9. Washer fluid tank

A25A-FKS engine

1. Fuse boxes
2. Engine oil filler cap
3. Engine oil level dipstick
4. Battery
5. Brake fluid reservoir
6. Radiator
7. Electric cooling fan Condenser
8. Engine coolant reservoir
9. Washer fluid tank

Checking and adding the engine oil
With the engine at operating temperature and turned off, check the oil level on the dipstick.

Checking the engine oil

1. Park the vehicle on level ground. After warming up the engine and turning it off, wait more than 5 minutes for the oil to drain back into the bottom of the engine.
2. Holding a rag under the end, pull the dipstick out.
   2GR-FKS engineA25A-FKS engine
   
3. Wipe the dipstick clean.
4. Reinsert the dipstick fully.
5. Holding a rag under the end, pull the dipstick out and check the oil level.
   
   1. Low
   2. Normal
   3. Excessive
      The shape of the dipstick may differ depending on the type of vehicle or engine.
6. Wipe the dipstick and reinsert it fully.

Checking the oil type and preparing the items needed
Make sure to check the oil type and prepare the items needed before adding oil.

1. Engine oil selection
2. Oil quantity (Low Full) 2GR-FKS engine:
   1.9 qt. (1.8 L, 1.6 Imp.qt.) A25A-FKS engine:
   1.6 qt. (1.5 L, 1.3 Imp. qt.)
3. Item
   Clean funnel

Adding engine oil
If the oil level is below or near the low-level mark, add engine oil of the same type as that already in the engine.

2GR-FKS engine

A25A-FKS engine

1. Remove the oil filler cap by turning it counterclockwise.
2. Add engine oil slowly, checking the dipstick.
3. Install the oil filler cap by turning it clockwise.

Engine oil consumption
A certain amount of engine oil will be consumed while driving. In the following situations, oil consumption may increase, and engine oil may need to be refilled in between oil maintenance intervals.

1. When the engine is new, for example directly after purchasing the vehicle or after replacing the engine
2. If low-quality oil or oil of an inappropriate viscosity is used
3. When driving at high engine speeds or with a heavy load, or when driving while accelerating or decelerating frequently
4. When leaving the engine idling for a long time, or when driving frequently through heavy traffic

After changing the engine oil
The engine oil maintenance data should be reset. Perform the following procedures:

1. While the vehicle is stopped, the press of the meter control switches.
2. Press or of the meter control switches, and select
3. Press or of the meter control switches, select “Vehicle Settings”, and then press “OK”.
4. Pressor of the meter control switches, select “Oil Maintenance”, and then press “OK”.
5. Select “Yes” and then press “OK”.
   A message will be displayed on the multi-information display when the reset procedure has been completed.

WARNING
Used engine oil

1. Used engine oil contains potentially harmful contaminants which may cause skin disorders such as inflammation and skin cancer, so care should be taken to avoid prolonged and repeated contact. To remove used engine oil from your skin, wash thoroughly with soap and water.
2. Dispose of used oil and filters only in a safe and acceptable manner. Do not dispose of used oil and filters in household trash, in sewers or onto the ground.
   Call your Lexus dealer, service station or auto parts store for information concerning recycling or disposal.
3. Do not leave used engine oil within the reach of children.

NOTICE
To prevent serious engine damage
Check the oil level on a regular basis.

When replacing the engine oil

1. Be careful not to spill engine oil on the vehicle components.
2. Avoid overfilling, or the engine could be damaged.
3. Check the oil level on the dipstick every time you refill the vehicle.
4. Be sure the engine oil filler cap is properly tightened.

Checking the engine coolant
The coolant level is satisfactory if it is between the “F” and “L” lines on the reservoir when the engine is cold.

1. Reservoir cap
2. “F” line
3. C “L” line
   If the level is on or below the “L” line, add coolant up to the “F” line.

Coolant selection
Only use “Toyota Super Long Life Coolant” or a similar high-quality ethylene glycol-based non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life hybrid organic acid technology.
U.S.A.:
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deionized water. (Minimum temperature: -31°F [-35°C])
Canada:
“Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deionized water. (Minimum temperature: -44°F [-42°C])
For more details about engine coolant, contact your Lexus dealer.

If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir cap, drain cock, and water pump.
If you cannot find a leak, have your Lexus dealer test the cap and check for leaks in the cooling system.

WARNING
When the engine is hot
Do not remove the engine coolant reservoir cap or the radiator cap. The cooling system may be under pressure and may spray hot coolant if the cap is removed, causing serious injuries, such as burns.

NOTICE
When adding coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of water and antifreeze must be used to provide proper lubrication, corrosion protection, and cooling. Be sure to read the antifreeze or coolant label.

If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.

Checking the radiator and condenser
Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of their condition, have your vehicle inspected by your Lexus dealer.

WARNING
When the engine is hot
Do not touch the radiator or condenser as they may be hot and cause serious injuries, such as burns.

Checking and adding the brake fluid

Checking fluid level
The brake fluid level should be between the “MAX” and “MIN” lines on the tank.

Adding fluid
Make sure to check the fluid type and prepare the necessary items.

1. Fluid type
   FMVSS No.116 DOT 3 or SAE J1703 brake fluid
   FMVSS No.116 DOT 4 or SAE J1704 brake fluid
2. Item
   Clean funnel

Brake fluid can absorb moisture from the air
Excess moisture in the brake fluid can cause a dangerous loss of braking efficiency. Use only newly opened brake fluid.

WARNING
When filling the reservoir
Take care as brake fluid can harm your hands and eyes and damage painted surfaces.
If fluid gets on your hands or in your eyes, flush the affected area with clean water immediately.
If you still experience discomfort, see a doctor.

NOTICE
If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads wear out or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, there may be a serious problem.

Checking the battery
Check the battery as follows.

Battery exterior
Make sure that the battery terminals are not corroded and that there are no loose connections, cracks, or loose clamps.

Terminals
Hold-down clamp

Before recharging
When recharging, the battery produces hydrogen gas which is flammable and explosive. Therefore, observe the following precautions before recharging:

1. If recharging with the battery installed on the vehicle, be sure to disconnect the ground cable.
2. Make sure the power switch on the charger is off when connecting and disconnecting the charger cables to the battery.

After recharging/reconnecting the battery

1. Unlocking the doors using the smart access system with a push-button start may not be possible immediately after reconnecting the battery. If this happens, use the wireless remote control or the mechanical key to lock/unlock the doors.
2. Start the engine with the engine switch in ACCESSORY mode. The engine may not start with the engine switch turned off. However, the engine will operate normally from the second attempt.
3. The engine switch mode is recorded by the vehicle. If the battery is reconnected, the vehicle will return the engine switch mode to the status it was in before the battery was disconnected. Make sure to turn off the engine switch before disconnecting the battery. Take extra care when connecting the battery if the engine switch mode prior to discharge is unknown.

If the engine will not start even after multiple attempts at all methods above, contact your Lexus dealer.

WARNING
Chemicals in the battery
Battery contains poisonous and corrosive sulfuric acid and may produce hydrogen gas which is flammable and explosive. To reduce the risk of death or serious injury, take the following precautions while working on or near the battery:

1. Do not cause sparks by touching the battery terminals with tools.
2. Do not smoke or light a match near the battery.
3. Avoid contact with eyes, skin and clothes.
4. Never inhale or swallow electrolyte.
5. Wear protective safety glasses when working near the battery.
6. Keep children away from the battery.

Where to safely charge the battery
Always charge the battery in an open area. Do not charge the battery in a garage or closed room where there is insufficient ventilation.

Emergency measures regarding electrolyte

1. If electrolyte gets in your eyes
   Flush your eyes with clean water for at least 15 minutes and get immediate medical attention. If possible, continue to apply water with a sponge or cloth while traveling to the nearest medical facility.
2. If electrolyte gets on your skin
   Wash the affected area thoroughly. If you feel pain or burning, get medical attention immediately.
3. If electrolyte gets on your clothes
   It can soak through clothing onto your skin. Immediately take off the clothing and follow the procedure above if necessary.
4. If you accidentally swallow electrolytes Drink a large quantity of water or milk. Get emergency medical attention immediately.

When there is an insufficient battery fluid
Do not use it if there is insufficient fluid in the battery. There is a possible danger that the battery may explode.

NOTICE
When recharging the battery
Never recharge the battery while the engine is running. Also, be sure all accessories are turned off.

Adding the washer fluid
If any washer does not work or “Wind-shield Washer Fluid Low” is shown on the multi-information display, the washer tank may be empty. Add washer fluid.

WARNING
When adding washer fluid
Do not add washer fluid when the engine is hot or running as washer fluid contains alcohol and may catch fire if spilled on the engine etc.

NOTICE
Do not use any fluid other than washer fluid
Do not use soapy water or engine anti-freeze instead of washer fluid.
Doing so may cause streaking on the vehicle’s painted surfaces, as well as damaging the pump leading to problems of the washer fluid not spraying.

Diluting washer fluid
Dilute washer fluid with water as necessary.
Refer to the freezing temperatures listed on the label of the washer fluid bottle.

FAQs

1. How often should I check the engine oil level in my Lexus ES350 2023?
   It is advised to check the engine oil level before long trips or at least once per month. Keep the oil level in the suggested range.
2. What type of engine oil should I use for my Lexus ES350 2023?
   The owner’s manual contains information on the recommended engine oil viscosity and type. To ensure that the engine performs at its best, it is crucial to use the recommended oil.
3. How frequently should I change the engine oil in my Lexus ES350 2023?
   Depending on the manufacturer’s recommendations, the engine oil should typically be changed every 5,000 to 10,000 miles. Observe the owner’s manual’s recommended maintenance schedule.
4. When should I replace the engine air filter in my Lexus ES350 2023?
   The engine air filter needs to be checked frequently, and when it becomes clogged or dirty, it needs to be replaced. Every 30,000 to 45,000 miles or as instructed in the owner’s manual, this is typically advised.
5. How often should I check the coolant level in my Lexus ES350 2023?
   It’s recommended to check the coolant level every few months or as the manufacturer specifies. Make sure the coolant level is between the allowed ranges.
6. When should I replace the coolant in my Lexus ES350 2023?
   The time between coolant replacements can vary. According to the manufacturer’s instructions and the coolant type, it is generally advised to flush and replace the coolant every 30,000 to 60,000 miles or a few years.
7. How frequently should I check the drive belts in my Lexus ES350 2023?
   Regularly check the drive belts for wear, damage, and cracks. It is advised to have them checked out as part of regular maintenance and replaced as necessary.
8. When should I replace the timing belt on my Lexus ES350 2023?
   Depending on the type of engine, the timing belt replacement cycle can change. Some engines may have a timing chain that doesn’t need to be replaced on a regular basis; check the owner’s manual for the precise recommendation.
9. How often should I check the battery in my Lexus ES350 2023?
   A visual examination of the battery is advised on a regular basis to look for corrosion, loose connections, or other damage. Additionally, when performing routine maintenance or if you have any starting problems, check the battery’s voltage.
10. When should I replace the spark plugs in my Lexus ES350 2023?
    The frequency of spark plug replacement varies depending on the type of plugs being used. The suggested replacement interval, which typically ranges from 60,000 to 100,000 miles, can be found in the owner’s manual.
11. How frequently should I check the engine coolant hoses in my Lexus ES350 2023?
    Check the engine coolant hoses frequently for any indications of leaks, cracks or bulges. It is advised to check them during routine maintenance and replace them as necessary.
12. Do I need to use a specific type of fuel for my Lexus ES350 2023?
    For the best engine performance, Lexus typically advises using premium unleaded petrol with an octane rating of 91 or higher.
13. How often should I replace the fuel filter in my Lexus ES350 2023?
    In modern vehicles, the fuel filter is frequently found inside the fuel tank and doesn’t not need to be replaced frequently. For details on your particular vehicle, refer to the owner’s manual.
14. Can I perform engine maintenance tasks, such as changing the oil, myself?
    With the right equipment and information, owners can perform some engine maintenance tasks. However, it’s crucial to adhere to the correct protocols and instructions outlined in the owner’s manual. It is advised to seek professional advice if unsure.
15. Where can I find authorized Lexus service centers for engine maintenance and repairs?
    You can schedule engine maintenance and repairs at dealerships and authorised service centres for Lexus vehicles. On the Lexus website or by getting in touch with Lexus customer service, you can find a list of authorised service facilities.

Useful Links

View Full User Guide: Lexus ES350 2023 User Manual | Auto User Guide
Download Manuals: Resources | Manuals & Guides | My Lexus