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Service Light is on Inspection Service

The dashboard of every car produced after 1996 has the ability to communicate messages of various severity and importance to the driver through warning and indicator lights.

The Service (or Service Engine) light is a warning light that is connected to the engine control unit (ECU) of a vehicle. The ECU is the brain of the car and monitors a number of systems, including:

  • Emissions: There are sensors throughout the engine management system on all cars manufactured since 1996 that alert the driver of any malfunction that will lead to unacceptable amounts of emissions entering the air.

  • Engine temperature: Sensors in and around the engine can alert the driver to excessive operating temperatures, which may lead to engine damage. Typically, this warning will be accompanied by a Temperature, Engine Overheating, or Check Gauges light.

  • Mileage: While vehicles have recorded mileage for many years, the ECU can also keep track of mileage between oil changes and other routine services.

There are many other components the ECU is capable of monitoring, and those also vary depending on the manufacturer and year of production.

Common reasons for this to happen:

The Service light is a vague warning and can indicate something as simple as too many miles between oil changes to potentially serious faults in the engine. The problem could be totally benign or very serious, and a professional inspection is the best course of action if the light is persistently illuminated. A mechanic can catch problems early that, if left unattended, could lead to costly repairs down the road.

What to expect:

A top-rated mobile mechanic will come to your home or office to determine why the Service light is on, and will then provide a detailed inspection report that includes the scope and cost of the necessary repairs.

How important is this service?

A Service light is important to diagnose shortly after it illuminates, given that the underlying issue could be mild or severe. Book a mechanic to perform a thorough inspection as soon as possible.


Recent Service Light is on Inspection reviews

Excellent Rating

(65)

Rating Summary
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Faraz

22 years of experience
64 reviews
Faraz
22 years of experience
Mazda 3 L4-2.5L - Service Light is on - Fremont, California
Faraz is excellent! He was really nice and more than happy to answer any of my questions unrelated to the service and directed me to where I could get help. He was also in communication about running a little late. I really felt looked after. Highly recommend!

Faraz

22 years of experience
64 reviews
Faraz
22 years of experience
Infiniti G35 V6-3.5L - Service Light is on - Hayward, California
Faraz was friendly, has great listening skills and displayed a high level of expertise. I was very pleased with the service he provided and I appreciated the time he took in explaining his evaluation of my car's problem.

Walter

46 years of experience
343 reviews
Walter
46 years of experience
Ford Taurus V6-3.0L - Service Light is on - Tulsa, Oklahoma
Walter was my mobile mechanic, who was not only stellar in addressing the issue I had, but was highly friendly and personable! He also took the time to really assess the overall condition of my car, and gave me a lot of tips I’d never before known. The last two times I’ve had to have a car in the shoppe took up to two weeks for them to service it, but Walter was with me within only 21 hours, and had it running again within 45 minutes! I’m using this service from now on, and recommending it to everyone I know!

Ben

41 years of experience
1416 reviews
Ben
41 years of experience
Ford E-150 Econoline Club Wagon V8-5.4L - Service Light is on - Spring, Texas
More capable than anyone I have met, he was above and beyond what a professional looks and acts. Far exceeded my expectations, polite, quick, efficient and easy to talk through problems with. I look forward to working with Mr. Smith in the future!

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