Auto repair and tires for Rancho Cucamonga, CA
Comtires is a family-owned tire and auto repair shop at the corner of Holt & Mountain in Ontario — a short drive south from most of Rancho Cucamonga. ASE-certified mechanics, a 24-month / 24,000-mile warranty on most repairs, and honest pricing since 2011.
Every repair starts with a complete estimate, and most repairs are backed by our 24-month / 24,000-mile warranty.
Since 2011
Family owned, one location, on Holt Blvd.
24 months / 24,000 miles
Our warranty on most repairs.
Free local shuttle
While we work on your car. Ask at drop-off.
The shop Rancho Cucamonga drivers trust for tires, wheels, and full auto repair
Rancho Cucamonga sits up against the foothills, and that geography is hard on vehicles. Suspension takes a beating on the climb up to Alta Loma, tires age fast in the dry heat off Foothill Blvd, and brakes get worn down on the long downhill drives back into the valley. Add in daily commutes on the 210 and 15, the school runs across Etiwanda and Day Creek, and weekend trips up to the mountains — and the wear shows up earlier than the tire sticker promised.
That's the work we do. Comtires has been the family-owned shop at Holt & Mountain in Ontario since 2011, and a meaningful share of our customers drive down from Rancho — Victoria Gardens, Alta Loma, Etiwanda, the older Cucamonga neighborhoods, and the newer developments out toward Day Creek. We service everything from daily commuter sedans and family SUVs to lifted trucks, fleet vans, and tuned imports.
Rancho Cucamonga drivers tend to have newer vehicles, and newer vehicles fail differently. Electronic parking brakes, direct injection, variable-displacement A/C compressors and tire pressure sensors on every wheel mean most problems announce themselves as a warning light rather than a noise. Reading what the light actually means is most of the work on a late-model car.
The geography adds its own load. Coming down out of the foothills on Haven, Milliken or Archibald is a long descent that keeps brakes working the whole way, and the 210 commute puts steady highway miles on top of that. Alignment is the one that gets missed: a newer car still pulls out of specification on rough pavement, and the tire wear shows up well before the steering feels wrong. We would far rather find a worn bushing on the alignment rack than on a set of tires that is already scrubbed out.
Auto repair services for Rancho Cucamonga drivers
Everything below is done at our Ontario shop, a short drive from Rancho Cucamonga. Each service has its own page with the details.
Brake repair in Rancho Cucamonga
Pads, rotors, calipers and an ABS check.
Wheel alignment in Rancho Cucamonga
Cars, trucks, vans and Teslas on Hunter equipment.
Car A/C repair in Rancho Cucamonga
R-134a and R-1234yf systems, leaks and recharge.
Oil change in Rancho Cucamonga
Full synthetic, and diesel-rated oil for diesels.
Steering and suspension in Rancho Cucamonga
Shocks, struts, ball joints, tie rods and racks.
AC compressor repair in Rancho Cucamonga
Including electric compressors on hybrids and EVs.
Lift and leveling kits in Rancho Cucamonga
Chosen and installed for how the truck is used.
Auto repair in Rancho Cucamonga
Diagnostics, maintenance and the work most shops send out.
Areas of Rancho Cucamonga we serve
Customers come to our Holt Blvd shop from across Rancho Cucamonga, including:
Victoria Gardens & Day Creek
Alta Loma
Etiwanda
Cucamonga (south Rancho)
Terra Vista
Red Hill
Foothill Blvd corridor (Route 66)
Haven Ave corridor
Chaffey College Rancho campus area
LoanMart Field / Quakes Stadium area
Map and directions from Rancho Cucamonga
Comtires
1113 W Holt Blvd, Ste B1
Ontario, CA 91762
Holt Blvd at Mountain Ave
Monday-Friday: 8:00 AM - 5:30 PM
Saturday-Sunday: Closed
From Victoria Gardens / Day Creek area: Take the 15 South, then exit at the 10 West. Take the Mountain Ave exit south, and the shop is about a mile down on the corner of Holt. Roughly 15 minutes.
From Alta Loma / North Rancho: Head south on Haven Ave or Archibald Ave (whichever is closer) all the way down through Rancho into Ontario. Cross under the 10 Freeway and continue south to Holt Blvd. Turn right on Holt and head west to Mountain Ave. About 15–20 minutes.
From Etiwanda: Take the 210 West to the 15 South. Exit at the 10 West, then Mountain Ave south to Holt. We're on the corner. About 20 minutes.
From Cucamonga / South Rancho: Head south on Archibald Ave, cross under the 10 Freeway, and continue down to Holt Blvd. Turn right (west) on Holt and continue to Mountain. About 10–12 minutes.
From the 210 Freeway: Take the 210 West to the 15 South, then the 10 West. Exit Mountain Ave south to Holt.
From the 15 Freeway: Head south on the 15 to the 10 West. Exit Mountain Ave south to Holt. We're on the corner.
From the 10 Freeway (for customers coming from the south side of Rancho): Exit Mountain Ave south. About a mile down to Holt — we're on the corner.
A quick note on arrival: The shop is on Holt Blvd at Mountain Ave. Coming south on Mountain Ave: the driveway is on your right just past the bus stop, and no U-turn is needed. Coming north on Mountain Ave: make a U-turn at Holt Blvd, then take the first driveway past the bus stop.
Nearby cities we serve
Drivers come to our Ontario shop from across the west Inland Empire.
Rancho Cucamonga, CA auto repair FAQ
Do you have a tire shop in Rancho Cucamonga?
Our physical shop is in Ontario at the corner of Holt Blvd & Mountain Ave — a short drive south from most of Rancho via the 15 or surface streets. We've been serving Rancho Cucamonga customers since 2011.
Is it worth the drive from Rancho Cucamonga?
Most of our Rancho customers tell us yes. We're a family-owned, ASE-certified shop with a 24-month / 24,000-mile warranty on most repairs, transparent pricing, and a long-standing reputation in the Inland Empire. The short drive south usually saves customers money compared to dealerships and chain shops up the hill.
Do you offer shuttle service for Rancho customers?
We offer complimentary shuttle service for customers dropping off vehicles. Coverage and availability depend on the distance and the day's shop schedule — ask your service advisor at drop-off and they'll let you know what's possible.
How long does a tire installation or oil change take?
A standard 4-tire install with balance and TPMS reset typically runs 45–60 minutes. Most oil changes are done in 30–45 minutes. Alignments and larger jobs take longer — we give you a clear time estimate at check-in.
Do you finance tires and repairs?
Yes. We offer Goodyear Credit, Snap, Progressive Leasing, Koalafi, and AutoPass financing. Several options take a few minutes to apply for in the shop and don't require traditional credit.