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FRUNKERY

Quantum ADAS Calibrations

Unclaimed

El Cajon, California

4.6(21 reviews)

Google rating

Business details from Google. Something wrong? The owner can claim this page and fix it.

Opening hours

  • Monday8:00 AM – 5:00 PM
  • Tuesday8:00 AM – 5:00 PM
  • Wednesday8:00 AM – 5:00 PM
  • Thursday8:00 AM – 5:00 PM
  • Friday8:00 AM – 5:00 PM
  • SaturdayClosed
  • SundayClosed

Google reviews(21)

4.6(21 reviews)

Rating and reviews from Google. Google picks which reviews it shares; we show them as written.

S

Smith Fence Company

Aug 2026

What an outstanding place and service I was referred to these guys by trick trucks, he really helped me out with the issues I'm having with my lifted truck and did not charge me a dime. Marvin K brown charged me 500. Dollars for a diagnostic, Preston did a diagnostic for me for free. Only because it needs to go to the dealership, but any other place would have been like, We need to charge you for a diagnostic. This is hard to find in a business and a company nowadays. "Honesty. Amazing" HIGHLY RECOMMEND These are Real people doing Real Work!!!!

J

Joseph Vieira

Aug 2026

I honestly can’t say enough good things about this automotive company. I brought my car in with a problem that several other places couldn’t figure out, and they were able to diagnose it, fix it, and get me back on the road incredibly quickly. What impressed me most was their knowledge, honesty, and attention to detail. They didn’t just fix the problem—they did it at a fantastic price without trying to upsell me on things I didn’t need. It’s rare to find a shop you can genuinely trust. I’m extremely grateful for their excellent service and will absolutely be coming back. If you’re looking for a reliable, honest, and highly skilled automotive company, I highly recommend Preston and his team!

R

Ryan Roy

Jul 2025

Quantum ADAS Calibration truly sets the bar for customer service and professionalism. From the moment I arrived, Preston and Roslyn made me feel like I was in the best hands possible. Not only did they handle everything with care and precision, but they also took the time to explain every step of the process in detail—something you don’t often see these days. They didn’t just “do the job”—they walked me through it, showing me exactly what was happening in real time. From how the calibration works to the inner workings of the sensors, I gained an entirely new level of understanding and appreciation for the tech in my wife’s Audi. Every question I had was answered thoroughly, and I left feeling confident, informed, and truly taken care of. If you’re looking for a place that combines technical expertise with unmatched customer service, Quantum ADAS is the place to go. Huge thanks to Preston and Roslyn for going above and beyond. You guys are top-tier!

C

Catherine H

Nov 2023

Preston and Donovan are very skilled at their job and very honest- which, for a woman customer is a big deal! They actually listen to what the problem with my car was, started diagnostics and right away you could tell they were experienced at what they were doing. Will definitely bring my car here in the future if needed. I highly recommend this place.

A

AUTOWERKS

Mar 2023

I use Quantum a few times per week. Preston and Donavan take care of our account. They are quick, offer pickup and drop off services and get the job done. I highly recommend these guys for all you ADAS needs

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El Cajon, California

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