Warranty Repair Shop in Modesto, CA
You bought your car used. It came with a warranty. Now something’s wrong — and you need someone who actually knows how to use it. Auto Alternatives is a local, independent, ASE-certified repair shop that handles warranty claims every week for used-car dealer contracts, extended warranties, and third-party service plans. Free quotes. Loaner cars available. We handle the entire claim so you don’t have to.
📞 Repair & Mechanic: (209) 424-7905
📞 Body Shop & Collision: (209) 988-9824
You Have the Right to Choose Your Shop
This is the single most important thing to know about your car warranty: you are not required to use the dealership where you bought the car. The federal Magnuson-Moss Warranty Act, in place since 1975, protects your right to have your vehicle serviced at any qualified, licensed independent repair facility without voiding your warranty. That includes us.
As long as the shop is ASE-certified (we are), uses quality parts, and documents the work properly (we do), your warranty stays fully intact. Your dealership cannot legally void your coverage just because you went somewhere else — no matter what they told you at the sales table.
What this means for you: you don’t have to wait three weeks for a dealership appointment. You don’t have to drive across town. You don’t have to accept whatever the dealer’s service department charges. You can bring your car to the local shop you actually trust — and your warranty covers the exact same repair.
Warranty Programs We Regularly Service
We handle warranty claims for customers of most major Central Valley used-car dealerships and third-party warranty companies, including:
- Roberts Auto Sales in-house and extended warranties — dedicated Roberts warranty page →
- Manufacturer certified pre-owned (CPO) warranties from most major brands
- Third-party extended warranty programs (Endurance, CarShield, Protect My Car, Olive, and similar)
- Dealer-backed extended service contracts from most Modesto and Central Valley used-car lots
- Vehicle Service Contracts (VSCs) purchased at time of sale or aftermarket
- Powertrain warranties, bumper-to-bumper warranties, and drivetrain contracts
- Fleet and commercial warranty contracts
Not sure if your specific warranty is one we work with? Give us a call. In 5 minutes we can look up the administrator, tell you exactly how the claim process works, and let you know if there are any restrictions we should be aware of. There’s no obligation.
Why Warranty Customers Choose Auto Alternatives
- 25+ years of claim experience. Our warranty and insurance specialist has been submitting, negotiating, and closing claims for over two decades. We know which language the administrators respond to and how to get repairs approved fast.
- Free diagnostics before we file anything. We tell you what’s wrong, what’s covered, and what your out-of-pocket will be — before you commit to the repair.
- Same-week scheduling. Most warranty repairs are on the lift within days of your call. No months-long dealership queue.
- Loaner cars. Stay mobile while we work. Reserve early — they go fast.
- We deal with the warranty company. You bring the car. We do the phone calls, submit the paperwork, negotiate the approval, order the parts, and complete the repair.
- Honest coverage assessments. If we don’t think a repair will be approved, we’ll tell you before you file. If we think you have a strong case, we’ll advocate for it.
- Every make and model. Domestic, foreign, Asian, hybrid, and EV — including Tesla. If it drives in, we can service it.
How Warranty Repair Works Here
- Call or come in with your warranty paperwork. Photos of the contract also work. We look up your administrator and confirm coverage details.
- Free diagnostic on the lift. We identify the failure and document exactly what’s needed. This is required for warranty claims and it’s on us.
- Pre-authorization. We contact the warranty administrator, submit the claim with photos and technician notes, and secure approval. Most claims clear in 24–48 hours.
- You approve the repair. Before we touch anything, you know exactly what’s covered, your deductible (if any), and any out-of-pocket cost. No surprises.
- Repair completed. ASE-certified techs. Warranty-approved parts. Dealership-quality results.
- Pickup. Most warranty companies pay us directly. You pay your deductible (if any). Drive away.
What Warranties Typically Cover (and Don’t)
Every contract is different — that’s why we always review yours before making promises. But in our experience, most used-car and extended warranties cover:
Usually Covered
- Engine internal components
- Transmission and transaxle
- Drive axles and CV joints
- Fuel system components (pump, injectors, regulator)
- Cooling system (water pump, radiator on some plans)
- Suspension and steering components
- Brake system components (calipers, master cylinder, ABS)
- Electrical system (alternator, starter, ignition)
- Air conditioning compressor and system (varies by plan)
Usually NOT Covered
- Routine maintenance (oil changes, filters, fluids)
- Wear items (brake pads, rotors, wipers, belts, hoses on some plans)
- Tires and batteries (most plans)
- Collision or body damage (covered by insurance, not warranty)
- Pre-existing conditions or damage before contract start
- Modifications and aftermarket parts
Again — bring your contract in and we’ll read it with you. Coverage varies wildly between plans, and knowing what you actually have prevents a lot of frustration.
What About Collision and Body Damage?
Warranty contracts don’t cover accidents — that’s your auto insurance. Our Body Shop & Collision Center handles the entire insurance claim start to finish, at $595 per panel with pristine color matching. We can often get you up to 90% of your deductible back as a rebate. Learn more about our collision service →
Frequently Asked Questions
Can I really use an independent shop without voiding my warranty?
Yes. The federal Magnuson-Moss Warranty Act protects your right to choose any qualified repair facility. Warranty companies cannot legally void your coverage just because you used an independent shop, as long as the repair is done properly.
Do you accept my specific warranty?
Probably. We work with most major used-car dealer warranties, manufacturer extended warranties, and third-party service contracts (Endurance, CarShield, Protect My Car, and many more). Call with your warranty details and we’ll confirm in minutes.
How much will I owe out of pocket?
It depends on your specific contract. Most warranties have a deductible ($100–$200 is common). Some cover 100% after the deductible; others cover a percentage. We tell you exactly what you’ll owe before starting any work.
How long does the whole warranty repair process take?
Diagnostic is usually same day. Pre-authorization takes 24–48 hours in most cases. Repair time depends on the issue and parts availability, but most jobs are done within a week of drop-off. We keep you updated.
What if the warranty company denies my claim?
It happens. Our 25+ year claims specialist knows the appeal process and often gets initial denials reversed with proper documentation. If a claim is truly not covered, we’ll tell you what your options are — including whether the repair is worth doing out of pocket.
Do you handle claims for cars bought outside Modesto?
Yes. We service vehicles bought from dealerships across Northern California, and warranty contracts are honored regardless of where the vehicle was purchased. As long as your warranty is active and covers the repair, we can process it.
Where are you located?
Repair & Mechanic Shop: 442 Galaxy Way, Modesto, CA 95356
Body Shop & Collision Center: 623 Bangs Ave, Modesto, CA 95356
Both open Monday–Friday, 8am–5pm.
Get Your Warranty Repair Started Today
Bring your car and your warranty contract to Modesto’s most experienced warranty repair shop. Free quotes. Loaner cars. Honest answers before you commit to anything.
📞 Repair & Mechanic: (209) 424-7905
📞 Body Shop & Collision: (209) 988-9824
📍 442 Galaxy Way, Modesto, CA 95356
Roberts Auto Sales customer? See our dedicated Roberts warranty page →