logo

Lexus GS400 Car Battery Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(35)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

See availability

Customer Ratings

(35)

Car Battery Replacement Service

How much does a Car Battery Replacement cost?

On average, the cost for a Lexus GS400 Car Battery Replacement is $296 with $156 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1998 Lexus GS400V8-4.0LService typeCar Battery ReplacementEstimate$466.90Shop/Dealer Price$551.18 - $789.83
1999 Lexus GS400V8-4.0LService typeCar Battery ReplacementEstimate$457.55Shop/Dealer Price$538.65 - $774.73
2000 Lexus GS400V8-4.0LService typeCar Battery ReplacementEstimate$457.55Shop/Dealer Price$538.69 - $774.80
Show example Lexus GS400 Car Battery Replacement prices

What are car batteries and how do they work?

A car battery is an energy storage device that relies on a chemical reaction within the battery to produce electricity. The stored electrical energy is used to initially operate the starter motor, ignition system, and fuel system on your vehicle. Once your car engine is running, the alternator supplies the electricity needed for all vehicle systems and charges the battery to replace the electric energy used when starting a car.

Most electric vehicles have a traction battery which is in addition to the standard 12 volt battery that is used to start the car engine. Traction batteries also convert chemical energy to supply electrical energy but operate at higher voltages and often are monitored by the PCM (Powertrain Control Module).

Battery

When to replace a car battery?

  • Your car doesn’t start. A new battery has a specified capacity to provide power. This capacity is referred to as the cranking amps rating of the battery. As a battery ages, the actual amps that a battery can supply becomes lower than its original rating Once the cranking amps fall below a critical threshold, it will be difficult or impossible to start your car.
  • Battery or charging system warning light is illuminated. Should a battery or charging system warning light illuminate, a mechanic should perform a few basic tests to determine if a battery replacement is needed.
  • Electrical components don’t work. Once a battery has started to fail, and the voltage produced by the battery drops, then vehicle electrical components can malfunction, such as the security system. If you are experiencing electrical malfunctions, it’s a smart idea to have the battery tested.

How do mechanics replace the battery?

  • A temporary power source might be installed to avoid the possibility of losing radio presets or stored data in the PCM while the battery is out. When the battery is already completely dead, this step is unnecessary.
  • The vehicle’s negative cable is removed from the battery, followed by the positive cable. The battery tie down system is loosened and the old battery removed.
  • Cable ends and wiring are carefully inspected to ensure cleanliness and no corrosion. In some cases, corrosion can be extreme and the cable may need to be replaced or wiring repaired.
  • The new battery is installed and the tie down system is reinstalled. Anti-corrosion compound is applied to the battery terminals. The positive terminal is reconnected followed by the negative terminal.
  • Some vehicles, for example some models of BMW, VW, and Audi, may require PCM programming to input battery parameters. This step, performed using a specialized scan tool, is necessary to maximize battery life and prevent electrical system malfunctions.
  • The car is started and charging system output is measured and compared against the factory OEM specification to ensure that the new battery will properly recharge. Generally, charging output will be in the range of 13.8 to 14.8 volts but the exact specifications vary by make and model.

Is it safe to drive with a battery problem?

Yes, but if you have a weak battery you might be left stranded somewhere if the battery dies completely and you cannot start your car. A faulty battery may also needlessly overload the alternator and could adversely affect the operation of the vehicle’s electrical system, including the vehicle security system and the shift interlock.

When replacing the battery keep in mind:

  • The quality of the electrical connections to the battery posts is important. Connections must be clean, free of corrosion and properly tightened.
  • Batteries store a large amount of energy and if short-circuited a battery could explode and can create intense discharges that can damage your eyesight. Insulated tools should be used to attach cabling to battery terminals. Otherwise, the battery’s positive cable can be shorted to ground or the positive and negative posts can be directly shorted. Batteries can only be safely installed from a positive terminal to positive wiring and from a negative terminal to body ground. If the polarity is reversed damage will likely occur to the vehicle’s electrical system.
  • Generally, a car battery will have a service life of 4 to 7 years. If a load test on a battery reveals a significant reduction in the capacity of the battery to provide power, you should buy a new battery rather than wait for the old battery to fail completely.
  • Batteries should only be disconnected if the engine is off and the alternator is not running. Disconnecting a car battery while the alternator is running can cause a voltage spike that will damage sensitive electronic components in the vehicle, such as the PCM.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee

Number of Lexus GS400 services completed
385+
services done by our mechanics
TOTAL NUMBER OF EXPERT Lexus MECHANICS
1100+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Meet some of our expert Lexus mechanics

Real customer reviews from Lexus owners like you.

Excellent Rating

(35)
Rating Summary
34
0
0
0
1
34
0
0
0
1

Michael

22 years of experience
391 reviews
Request Michael
Michael
22 years of experience
Request Michael
by Brandie
Lexus GS400 V8-4.0L - Battery - Chino, California
Amazing service

H

27 years of experience
828 reviews
Request H
H
27 years of experience
Request H
by Daniel
Lexus GS400 V8-4.0L - Intake Manifold Gaskets - Mountain View, California
Honorio came to fix a job that the previous YOUR MECHANIC had messed up on, which was an improperly installed manifold gasket and starter. Honorio was very professional, explained what the issue with my car was, and had great attention to detail. He took his time and constantly kept me updated. I would highly recommend him. Thank you for fixing the problem.

Caz

18 years of experience
146 reviews
Request Caz
Caz
18 years of experience
Request Caz
by Dorria
Lexus GS400 V8-4.0L - Check Engine Light is on - Kennesaw, Georgia
Caz was great! He was punctual, professional, explained the diagnosis to me very well, and gave me options. I would definitely recommend him to friends and family.

Anthony

36 years of experience
19 reviews
Request Anthony
Anthony
36 years of experience
Request Anthony
by James
Lexus GS400 V8-4.0L - Oil Change - Danville, California

Excellent Rating

(35)
Rating Summary
34
0
0
0
1
34
0
0
0
1
Number of Lexus GS400 services completed
385+
services done by our mechanics
TOTAL NUMBER OF EXPERT Lexus MECHANICS
1100+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Recent articles & questions

P0222 OBD-II Trouble Code: Throttle/Pedal Position Switch/Sensor B Circuit Low Input
P0222 code definition Throttle/Pedal Position Switch/Sensor B Circuit Low Input What the P0222 code means The manufacturer specifies a range of acceptable...
Read more
A Buyer's Guide to the 2012 Mazda CX-7
If If you want an SUV, but don’t care as much about the “utility” part as you do the “sport” features, you should take a look at what the 2012 Mazda CX-7 has to offer. Key Features With a turbo...
Read more
P2094 OBD-II Trouble Code: A Fault with the B Camshaft Position Actuator Control Circuit Low Bank 2
What What the P2094 code means? The P2094 code means that the camshaft position actuator control circuit has found low system voltage present. The Engine Control Unit (ECU) detects this low voltage fault for the camshaft position actuator bank 2...
Read more

The car starts but then in cut off .

Hi there: Diagnosing a hard to start issue remotely is very difficult. There could be multiple ignition system components such as crank or camshaft position sensors that are damaged, have faulty electrical harnesses or are not communicating with other ignition...
Read more

I drove my car with a misfire now it won’t start ;(

Inasmuch as you have a known misfire in a particular cylinder, the causes of that will have to be resolved at the same time that the no start is diagnosed. If the misfire in the one cylinder is due to...
Read more

Fan dit not come on

Read more
  1. Home
  2. Estimates
  3. Lexus
  4. GS400
  5. Car Battery Replacement

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (844) 997-3624 · hi@yourmechanic.com

Read FAQ
GET A QUOTE