Business Details
20 Years
experience
Your Trusted Partner for Auto Repair Solutions
Car Smart Auto Service has been serving the Sumner, WA community since 2006 with a commitment to quality auto repair and customer satisfaction. Founded by Jeffrey and Kristi Grassman, our family-owned business combines technical expertise with personalized service, treating every customer like family. Our ASE-certified technicians utilize state-of-the-art equipment and advanced diagnostic tools to deliver precise repairs, from routine maintenance to complex diagnostics. We prioritize transparency, offering digital vehicle inspections with photo documentation and upfront estimates to ensure informed decision-making.With a 3-year/36,000-mile nationwide warranty on all repairs, we stand behind our work and focus on building long-term trust through honesty and reliability. Our services include factory-scheduled maintenance, brake repair, engine diagnostics, transmission solutions, and climate control systems, catering to domestic, import, and hybrid vehicles. We emphasize community values, providing employment opportunities for team members to thrive while ensuring every customer experiences exceptional service and timely repairs.
Services
Oil Changes
Brake Repair
Engine Diagnostics
Transmission Repair
AC Repair
Battery Installation
Suspension Repair
Check Engine Light
Catalytic Converter
Factory Maintenance
Details
- Year established: 2006
Highlights and features
- We offer ASE-certified technicians with advanced training and modern tools.
- Our digital vehicle inspections include photo documentation for full transparency.
- 3-year/36,000-mile nationwide warranty on all repairs ensures lasting quality.
- After-hours drop-off and pick-up options accommodate busy schedules.
- Complimentary shuttle service and same-day repairs prioritize customer convenience.
Associations and certifications
- ASE Certified
What people say
ASE-certified technicians
Clear communication
Digital inspections
3-year warranty
Timely repairs
Services
Oil Changes
Regular oil changes protect your engine and extend its lifespan. We use high-quality products and tailor service intervals to your driving habits and manufacturer recommendations. Our team ensures proper disposal of old oil and filters while checking for leaks or wear. Consistent maintenance improves fuel efficiency, prevents breakdowns, and maintains warranty compliance.
Brake Repair
We handle all brake components, including pads, rotors, calipers, and hydraulic systems. Our technicians diagnose issues like squeaking, grinding, or soft pedals to restore stopping power. We emphasize timely repairs to prevent costly damage and ensure safety. Services include fluid checks, pad replacements, and rotor resurfacing for reliable performance.
Engine Diagnostics
Advanced diagnostic tools identify check engine light causes, misfires, and performance issues. Our team interprets trouble codes and conducts real-world testing to pinpoint root causes. We address sensor failures, ignition problems, and emissions concerns to restore efficiency and prevent further damage.
Transmission Repair
We service automatic, manual, and CVT transmissions, including fluid flushes, clutch repairs, and rebuilds. Our experts diagnose leaks, slipping gears, and shifting issues to ensure smooth operation. Timely repairs prevent catastrophic failure and maintain vehicle longevity.
AC Repair
Our AC services restore cooling performance through refrigerant recharges, compressor repairs, and system diagnostics. We address weak airflow, strange odors, and warm air to ensure comfort. Using modern tools, we identify leaks or component failures and restore factory-level cooling efficiency.
People
Jeffrey Grassman
Owner
Jeffrey Grassman co-founded Car Smart Auto Service in 2006, leveraging his technical expertise and entrepreneurial vision. He prioritizes customer trust, quality repairs, and team development while ensuring the shop remains a community-focused business.
Questions
What services does Car Smart Auto Service offer?
We provide oil changes, brake repair, engine diagnostics, transmission services, AC repair, and more. Our full-service shop handles all makes and models with ASE-certified expertise.
Do you offer a warranty on repairs?
Yes, we provide a 3-year/36,000-mile nationwide warranty on all repairs to ensure quality and customer confidence.
Are your technicians certified?
All our technicians are ASE-certified, with ongoing training to stay updated on automotive technology and repair techniques.
Can I schedule after-hours drop-off?
Yes, we offer after-hours drop-off and pick-up options to accommodate your schedule outside regular business hours.
Do you service hybrid or electric vehicles?
Yes, we handle hybrid and electric vehicles, including diagnostics, battery checks, and specialized repairs.
What payment methods do you accept?
We accept Google Pay and offer financing options to help manage unexpected repair costs.
Reviews (4)
Larkin Williams
Mar 12, 2020
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Just got my truck back and it is running so much better!! Just had my spark plugs replaced. Thank you guys !! Great customer service for all your car/truck needs
Jenn Anderson
Feb 23, 2018
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We had an amazing experience at Car Smart. They found the problem with our breaks that Les Shwab missed and literally saved us $1,000!!! They were timely! Finished our vehicle in one day, in the time that was allotted to do so. The building itself is so clean and inviting! We will not go anywhere else! It's nice to know there's a trustworthy mechanic in the area! We HIGHLY recommend them!!!
Michael Velzy
Jul 19, 2017
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So far I've been here twice, one for a belt squeal issue and now for an oil change and every time they do an amazing job all the way through, from giving you a call the day prior to you appointment as a reminder, to doing a full detailed inspection which they send you the results via text complete with photos showing exactly what is good and what might need attention. I have to say that they do a great job, very professional and straight forward with their pricing and have continued to earn my business.
Cori Cutler
Jul 07, 2017
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Car smart is fantastic! Their customer service is outstanding! On my most recent visit I brought in my car because of an oil leak. I was worried it would be an expensive repair. To my relief Cameron informed me it was a very easy fix and it wasn't going to cost me anything because my car was under warranty from the last time I brought my car in. I am certain any other shop I would have taken my car to would have been dishonest with me. Thank you Car Smart!
