The Relationship Between Vehicle Safety Ratings and Repair Complexity

Vehicle safety ratings may affect your decision to purchase a vehicle or not. But what about collision repair? What does a highly rated vehicle mean for your next trip to the auto body shop? Let’s explore the relationship between vehicle safety ratings and collision repair.

What are vehicle safety ratings?

Vehicle safety ratings are standardized, star-based or letter-grade scores that evaluate a vehicle’s ability to protect occupants during collisions and prevent crashes. These ratings assess structural integrity, rollover resistance, and safety features such as airbags or automatic braking.

Popular rating systems include:

• The IIHS (Insurance Institute for Highway Safety): Evaluating data from both Canada and the U.S., the IIHS issues Good, Acceptable, Marginal, and Poor awards to makes and models and their features. The institute bases these ratings on crashworthiness and crash-avoidance technology.
• The U.S. NHTSA (National Highway Traffic Safety Administration): Uses a 5-star rating system for frontal, side, and rollover crash safety that informs decisions in both the U.S. and Canada.
• The Canadian National Safety Mark: Transport Canada requires manufacturers “authorized to affix the mark to have the capability to certify their vehicle production to comply with the regulations under the Motor Vehicle Safety Act.”

Why do vehicle safety ratings matter?

These ratings affect buying decisions, collision repair, and manufacturing. First, in the case of the National Safety Mark, it’s mandatory for manufacturers to achieve this rating to sell their product in the country. But for other ratings which aren’t ‌binary, their importance varies by context.

Generally, consumers want to know if a vehicle is safe before buying, leasing, or renting it. But to make ‌informed decisions, it helps to understand how organizations arrive at their vehicle safety ratings. Common criteria include:

• Crashworthiness: How effectively can a vehicle protect its occupants during a collision?
• Crash avoidance and mitigation: What technology or features does a vehicle possess that can help prevent a crash? This might be automatic emergency brake or lane-departure warnings.
• Rollover resistance: How likely is a vehicle to roll over during a crash? 

Vehicle safety ratings allow drivers to compare the safety of different vehicle makes and models. Consumers use these ratings to identify vehicles that are less likely to cause injury. In theory, a higher-rated vehicle is less likely to be involved in a damaging incident, and therefore less likely to need expensive collision repair. But is it really that simple?

Vehicle safety ratings and auto body repair

These ratings measure how well a vehicle protects occupants in specific crash scenarios. They’re based on carefully engineered crumple zones, airbag deployment timing, structural reinforcements, and advanced driver assistance systems (ADAS). So, a highly rated vehicle is one that can do more to protect vehicle occupants in the event of a collision, and it may even reduce the likelihood of a crash (more on that later).

When a vehicle is involved in a collision, the goal of ‌auto body repair is not just to make it look good again; it’s to restore safety systems to their original performance standards. Manufacturers design automobiles today with highly specialized materials, including high-strength steel and aluminum, that manage crash energy in precise ways. If a collision repair shop uses incorrect welding techniques, substitutes unsuitable parts, or doesn’t follow manufacturer repair procedures, the vehicle may no longer perform as it did during safety testing. 

This can compromise crash protection, even if the repair appears cosmetically flawless. In some cases, improper auto body repair can affect airbag sensors, radar calibration, and structural integrity, directly influencing how the vehicle behaves in a subsequent accident. 

Are higher-rated vehicles more expensive to repair?

There’s a feedback loop between safety design and repair complexity. As automakers push for higher safety ratings, vehicle structures become more advanced and difficult to repair correctly. A vehicle with a high rating may have features such as:

• Advanced multi-load-path structures.
• Extensive use of ultra-high-strength steel, boron steel, aluminum, or composites.
• Precisely engineered crumple zones.
• Sophisticated airbag timing and sensor networks.
• Integrated ADAS systems (radar, cameras, lidar, etc.).

The upshot: Higher safety ratings often stem from more advanced structural and safety system engineering, and this can increase the technical complexity required to restore crashworthiness after a collision.

What can drivers do with this information?

Drivers want to be safe, but some fear that a high vehicle safety rating might mean the car or truck they’re interested in would be too expensive or difficult to repair. Or drivers may have an opposite feeling: that a highly rated vehicle confers a level of safety bordering on invincibility.

Vehicles with high ratings for crash avoidance may reduce the likelihood or severity of certain collisions, especially rear-end crashes. However, safety ratings do not eliminate risk or replace attentive driving. So, while safety features can make you and your family safer, they don’t move the needle nearly as much as your driving habits and techniques. Driving defensively and carefully is the best safety decision you can make.

The importance of collision repair

Even if you drive perfectly, you can still end up needing collision repair. If you have a vehicle with a high safety rating, this increases the importance of finding experienced and skilled technicians who will follow OEM procedures and perform post-repair inspections. 

Choosing a repair facility isn’t just about cost, it’s about whether the shop can restore the safety performance your vehicle originally earned in crash testing. If the repair doesn’t preserve that integrity, the safety rating becomes as meaningful as your grade five report card. But the right collision repair shop can restore all the safety features that initially attracted you to your vehicle.