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Complete Car Warranty Guide to Auto Glass Repair

March 17, 2025

Car warranties protect against out-of-pocket expenses for repairs and services. This guide covers different car warranty options, their details, what is covered, and whether specific services such as windshield repair and ADAS calibration are required. 

What is a Car Warranty?

A car warranty is a guarantee by the car manufacturer or seller to the consumer. The guarantee is in the form of repairs and replacement of some problems or faults within a specific time frame or after reaching a certain mileage.

Car Warranty Types

Some of the car warranties include:

  1. Bumper-to-Bumper Warranty – It covers all the car parts except wear-and-tear materials.
  2. Powertrain Warranty – Covers the drivetrain, engine, and transmission.
  3. Corrosion Warranty – Gives a warranty against rust-related corrosion of structures.
  4. Emissions Warranty – Mandatory coverage that ensures emission-related components meet the environmental protocols.
  5. Roadside Assistance Warranty – Includes towing, jump start, flat tire change, and lockout.
  6. Extended Warranty – Optional customized protection after the vehicle’s factory warranty is over.

What Is Included in a Car Warranty?

This is an overview of coverage included in various car warranties.

1. Bumper-to-Bumper Warranty Coverage

Manufacturer warranty or bumper-to-bumper warranty is a type of warranty that covers all the vehicle’s major parts from the front bumper back to the rear bumper. The warranty ensures that the electrical and mechanical components are in perfect working condition. It covers components like:

  • Engine & Transmission
  • Electrical components
  • Infotainment System & Sensors
  • Heating and A/C system
  • Fuel system
  • Suspension system
  • Steering system
  • Brake system; capped

2. Powertrain Warranty Coverage

A powertrain warranty, although not as inclusive as a bumper-to-bumper warranty, is equally important. It guards the most exposed parts responsible for moving the car and maintains the engine, transmission, and drivetrain in sync.

Covered Components:

  • Engine Block & Internal Parts
  • Transmission System
  • Drivetrain Parts

3. Corrosion & Rust Warranty Coverage

A rust guarantee guards against excessive rusting, which causes the structure to weaken. It covers premature rust or manufacturing defects.

Coverage includes:

  • Body and structural frame panels in case of rust holes.
  • Factory defect-induced undercarriage rust.

4. Warranty Coverage for Emissions

Federal law mandates auto motor companies to offer emissions system warranties to keep vehicles environmentally friendly. The warranty covers unusual emissions caused by faulty engine parts.

Covered Items:

  • Catalytic Converter
  • Oxygen Sensors
  • Exhaust Manifold & EGR Valve
  • Evaporative Emission Control System

5. Extended Warranty Coverage

An extended warranty is an optional coverage that offers additional protection beyond the factory warranty duration. Coverage may be customized according to company and owner needs.

Standard coverage may include:

  • Extreme mechanical breakdowns
  • ADAS Calibration Systems (Advanced Driver Assistance Systems)
  • Windshield Repair & Windshield Replacement—Coverage can extend to side window repair or replacement of windshield cracks or chips due to manufacturing defects.

6. Roadside Assistance & Other Additional Coverages

Warranties may also include roadside assistance and add-ons, which provide peace of mind in an emergency.

Common Roadside Assistance Coverage:

  • Towing Services
  • Flat Tire Service
  • Jump-Start Service
  • Lockout Service

How to Check If Your Car is Still Under Warranty

Not sure if your car is still under warranty? Follow these steps:

  1. Review your sales documents for warranty details on duration and mileage protection.
  2. Manufacturers often include warranty details in the manual or a supplement booklet.
  3. Compare your mileage with the warranty coverage.
  4. A few manufacturers and third-party websites enable you to check for coverage via your VIN using online and offline support.

How to Get a Warranty on a Used Car

  • Look for the current manufacturer’s warranty
  • Buy a Certified Pre-Owned vehicle
  • Take out an extended warranty
  • Purchase a third-party used car warranty
  • Negotiate warranty coverage at the dealership
  • Check coverage details

How to Make a Car Warranty Claim

Here are some steps to follow:

  • Check your warranty policy and ensure the problem is covered.
  • Maintain maintenance records, as a lack of standard maintenance can nullify your warranty.
  • Warranties in most instances require servicing via certified dealerships or repair shops. Only trust names who are leaders in vehicle repair.
  • Some warranties require authorization before repair begins.
  • Submit invoices and tests conducted to your warranty company for payment.
  • If your claim is denied or delayed, follow up with the provider to understand.

Car Warranty Scams & How to Prevent Them

Car warranty scams are common. Don’t fall for the following scams.

  1. Robocalls & Phishing Emails – Scammers impersonate warranty providers and require you to extend coverage immediately.
  2. Deceptive Extended Warranty Deals – Scam companies sell worthless policies with low or no coverage.
  3. Upfront Payments & Pressure Tactics – Scammers will pressure you into acting fast and paying upfront.

How to Stay Away from Car Warranty Scams

Here are some measures that you can take:

1. Verify the Provider

Dial your manufacturer or dealership directly to verify warranty status. Check the company online—search BBB ratings and consumer reviews.

2. Review the Fine Print

Look for specific descriptions of what components are included example, windshield replacement, engine, transmission, ADAS calibration sensors, etc. Look for exclusions, as warranty scams include very little.

Ensure the policy specifies the claims-filing process, where to have repairs made and reimbursement terms.

4. Never Provide Personal Information to Unverified Callers

Only provide your VIN and financial information to reputable dealerships or warranty companies.

Disregard imitation calls or messages and report them to the Federal Trade Commission.

5. Research Before Buying an Extended Warranty

Choose providers sanctioned by automobile makers. Ensure companies are rated high on BBB, Trustpilot, or Consumer Reports. Always query and sign an entire contract before purchase.

Conclusion

A car warranty covers unexpected repair costs, which include fixing essential car parts and supporting prolonged vehicle performance. This car warranty guide covers different car warranties, how they cover you, and how you can make claims.

Also included are windshield repair and replacement, side window repair, and ADAS calibration, which are vital auto safety and maintenance technologies. It is better to have those services warrantied to avoid out-of-pocket expenses.

For safety-approved and warrantied windshield repair and ADAS calibration, NuVision Auto Glass delivers professional repairs for your vehicle to be road-safe and ready.

FAQs

What is the average car warranty?

The standard factory warranty is 3 years or 36,000 miles, but some manufacturers also provide extended warranties, e.g., 5 years/60,000 miles on powertrain warranties.

What is included in my car warranty?

For parts and repair coverage details, refer to your owner’s manual or warranty booklet, or call your dealer.

Is an extended car warranty a good buy?

If you plan on keeping your vehicle in the long term and want protection after the factory warranty is up, an extended warranty is a good thought. But always compare the cost of the warranty before you purchase.

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