Today's auto-electrical systems are getting more intricate and are stressing the limits of current technology, but they are basically the same design as 30 years ago. What can today's do-it-yourself do to keep from being electrically-challenged in the middle of nowhere? A quick overview of your car's electrical system would be a good start. Our technicians at Nexar Auto Repair Shop in Katy, close to River Oaks area, have over 20 years of experience in automotive repair and vehicle electrical systems in Houston. The major components of your car's electrical system are explained below, along with some troubleshooting tips.

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Check & Maintain - Replace When Necessary

  • Battery (cleanliness, connections and up to charge)
  • Alternator (charging properly, connections and belt tension)
  • Starter Motor (cleanliness and good connections)
  • All cables & connections, especially ground (remove rust & corrosion)


We guarantee to deliver

At Nexar auto repair in Katy, we are very confident in the work we perform and the quality parts we use on your vehicles. Because of that, we easily provide a full two year or 24,000 mile warranty on our repair work. This is a very long warranty because most independent auto repair companies and mechanic shops only offer only one year warranty.


At Nexar Auto, we use industry standard products and parts, all of our products are manufacturers recommended and our parts are oem or equivalent rated parts that are used by the manufactures.

OEM Parts, and Manufacturers recommended.
Trusted brand names Backed with warranty
All service and parts details provided.
All our work has a minimum 24-month guarantee all services
Great Value

Our services are offered at highly competitive rate without compromising the quality or our services or products, we rely on repetitive loyal customers and that is what drives our business to success.

Guaranteed competitive pricing
We will match or beat price.
We take the time to explain details
All our work has a minimum 24-month guarantee all services
20+ Years of experience

Our family owned business has been proudly serving the major Houston area for over 20 years, at Nexar Auto our experience will guaranty the quality, value and transparency of our services

Family owned & operated
Experienced mechanics & staff
Satisfaction guaranteed
All our work has a minimum 24-month guarantee all services
Up to date Technology

We believe in technology and we always keep up with advanced and up to date equipment and software, we follow the steps of dealer standards and recommendations to provide our clients with the most precise services and diagnostics.

Up to date equipment
Regularly mechanics technology training
Dealer standard tools
Updates diagnostics manuals and software

Have an alternator problem? Please book your appointment today.