
ADAS calibration
The cameras and sensors behind lane keeping, automatic braking and adaptive cruise, calibrated here at the shop.
Often needed after a windshield, an alignment or a collision.
ASE-certified technicians. Honest advice. A local alternative to the dealership.
Or text (909) 303-6526, Monday to Friday
The text line is closed now. Send a request and the service desk will reach you.
Monday to Friday, 8 am to 5 pm
1820 West 11th Street, Unit E-F
Upland, CA 91786
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Monday to Friday, 8 am to 5 pm
Saturday and Sunday closed
Closed on major holidays
Over 750 Google reviews
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If it can wait, we tell you it can wait.
Our technicians and service advisors walk you through them, and you decide.
The same family and the same address since 1998.

The cameras and sensors behind lane keeping, automatic braking and adaptive cruise, calibrated here at the shop.
Often needed after a windshield, an alignment or a collision.
Covered repairs may include a free rental car.
Certified technicians
Approved Auto Repair
Certified shop
Carfax partnerMost major and minor repairs on foreign and domestic cars and light trucks.
Any service performed. Excludes tires, batteries and oil changes.
One per customer. Cannot be combined with another offer. Must present coupon at time of purchase. Most cars and light trucks. See store for details.
Expires December 31, 2026
FREE
Battery and charging system test. Cold weather can take a toll on your battery.
One per customer. Cannot be combined with another offer. Must present coupon at time of purchase. Most cars and light trucks. See store for details.
Expires December 31, 2026
15% OFF
Wheel alignment with any tire purchase.
One per customer. Cannot be combined with another offer. Must present coupon at time of purchase. Most cars and light trucks. See store for details.
Expires December 31, 2026
Being a woman it's great to find a mechanic that you can trust. I drive over 50 miles to bring my cars for any type of repair or service. At the beginning I would compare prices, but I have realized that I can't find a better price and I can't compare the service. I recommend them to everyone!
Good honest people still exist!! Eddie and his technicians were able to diagnosis my vehicles breaks [...]. Eddie told me it should still be under warranty and it was. So I have to take my car back to the dealership. They did not charge me a dime. I cannot say enough how relieved I am to find a trustworthy auto repair shop...
This place is ABSOLUTELY as good as it gets when it comes to car repair. Very reasonable rates. Not once have I gotten get the feeling that I'm being nickle and dimed...as a matter of fact, it feels like Alonso is looking out for the welfare of my wallet as much as I am. Bottom line: as long as I'm living anywhere near, I'll never take my cars anywhere else.


Alonso's has been at 1820 West 11th Street since 1998, family owned and operated.
Many of our customers come to us because another customer sent them. We take pride in that, and in getting your car right the first time at a fair price.
No. We show you what we find, explain your options and tell you what can wait. Nothing is done without your OK.
Booking a time is the easiest way. Pick a time online, call (909) 946-0543, or text (909) 303-6526 Monday to Friday.
Most likely. We service most major brands of cars and light trucks, foreign and domestic.