Business Details
28 Years
experience
Your Trusted Auto Repair Partner in Upland, CA
Alonso's Auto Repair has been a trusted name in automotive service since 1998, serving Upland and surrounding communities with integrity and expertise. Our ASE-certified technicians utilize advanced diagnostic tools and quality parts to deliver reliable repairs for foreign and domestic vehicles. With over 27 years of experience, we prioritize customer satisfaction through transparent communication, competitive pricing, and a commitment to resolving issues correctly on the first attempt.Our services extend to fleet maintenance, smog inspections, and comprehensive diagnostics, supported by a CARMAX Extended Warranty certification. Backed by thousands of positive reviews, we maintain a family-owned ethos focused on building long-term client relationships through ethical business practices.
Services
Smog Check
ADAS Calibration
Wheel Alignment
Diagnostic Testing
Brake Repair
Oil Changes
Transmission Service
Suspension Repair
Electrical Systems
Fleet Maintenance
Details
- Year established: 1998
Highlights and features
- Over 27 years serving Upland with expert automotive repairs
- ASE-certified technicians ensure industry-standard service quality
- CARMAX Extended Warranty certified for guaranteed coverage
- Same-day diagnostics and repair options available
- Customer referrals drive our business growth
Associations and certifications
- ASE (Automotive Service Excellence)
- CARMAX Extended Warranty Certified Shop
- California Smog Check Program
What people say
Expert repairs
Customer satisfaction
Transparent pricing
Professional staff
Reliable service
Services
Smog Check
Our California-licensed smog inspection service ensures vehicle compliance with state regulations using OBD-II diagnostics for 2000+ model vehicles. Technicians identify emission system faults and perform necessary repairs to guarantee DMV certification readiness while maintaining environmental compliance standards.
ADAS Calibration
Precision ADAS calibration services restore advanced driver-assistance systems to factory specifications after windshield replacements or collision repairs. Our technicians use specialized tools to recalibrate cameras, sensors, and radar systems ensuring optimal performance of safety features like lane departure warnings and automatic emergency braking.
Wheel Alignment
Computerized alignment services restore proper tire contact angles using Hunter Engineering equipment. Technicians adjust camber, caster, and toe settings to manufacturer specifications, improving fuel efficiency, extending tire life, and enhancing vehicle handling characteristics for safer driving experiences.
Diagnostic Testing
Comprehensive diagnostic services utilize the latest OBD-II scanners to identify check engine light triggers and drivability issues. Our technicians interpret fault codes, perform component testing, and provide detailed explanations of required repairs while offering multiple solution options for customer consideration.
Fleet Maintenance
Tailored fleet maintenance programs reduce downtime for businesses operating multiple vehicles. Our services include scheduled oil changes, safety inspections, and priority repair scheduling for commercial clients. Technicians document service history and provide detailed reporting to help fleet managers maintain compliance and optimize vehicle longevity.
Questions
Do you offer smog check services?
Yes, we're a licensed California Smog Check station for OBD-II vehicles 2000 and newer. We provide both inspection and repair services but cannot perform STAR-certified tests.
What payment methods do you accept?
We accept major credit cards, debit cards, and cash payments. Financing options are available through third-party providers for qualified customers needing extended payment terms.
Are your technicians certified?
All our mechanics hold ASE (Automotive Service Excellence) certifications across multiple specialty areas, ensuring they meet industry standards for automotive repair knowledge and skills.
Do you service commercial fleets?
Yes, we offer dedicated fleet maintenance programs for businesses with multiple vehicles, including priority scheduling, detailed service documentation, and volume pricing discounts.
How can I schedule an appointment?
Schedule through our website's online booking system or by calling (909) 946-0543 during business hours. Text scheduling available Monday-Friday at (909) 303-6526.
What areas do you service?
We primarily serve Upland, Claremont, Montclair, Rancho Cucamonga, and Ontario residents. Our service area extends to neighboring communities within San Bernardino and Riverside counties.
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