A1 Auto Repair & Smog
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24 mechanics listed · 7 in Highland · 13 open weekends · 15 rated 4.5+
Data verified October 16, 2026
Listed for drivers in and around Highland, CA, these 24 shops work on medium and heavy duty trucks. What each one says about fleet accounts, road service, inspections and hours comes from its own website; ratings and quotes come from public reviews.

Of the 24 mechanics we list here, 7 are in Highland itself and 17 come from towns including San Bernardino (4, 8 mi), Riverside (4, 18 mi) and Redlands (3, 4 mi). The mechanics on this page are rated from 4.1 to 5.0 across 3,585 reviews; 18 have 50 or more reviews and 15 are rated 4.5 or higher. When customers rate these mechanics on specific qualities, they most often praise professionalism (89%), quality (74%) and value (70%). 13 are open on Saturdays and 1 on Sundays. The services the mechanics on this page list most often on their websites are check engine light service (3), brakes (2) and clutch service and repair (2). 4 list staff certifications (ASE) and 8 have a BBB rating of A or A+. Domain records put 12 websites of the mechanics on this page at ten or more years old; the oldest dates from 1997. 1 offers emergency or roadside call-outs; 7 offer financing; 10 are family- or locally-owned and 10 list coupons or special offers. We count these figures across the mechanics on this page; distances are straight-line, and hours and prices change, so confirm the details with the mechanic before you visit.
7 of the 24 shops sit inside Highland; the rest come from other towns. Truck shops need land, long approaches and highway access, so they end up on the edge of town. Drivers already plan around that.