What do Americans call car bonnets?

[Jason]

In American English, the front metal cover of a car is called a “hood.” The British term “bonnet” is almost never used in everyday US speech. This linguistic difference is a clear marker of regional automotive vocabulary, with “hood” being the standard term across all 50 states for accessing the engine bay.

The distinction is well-documented in linguistic studies and automotive literature. For instance, major American publishers like Haynes and Chilton use “hood” exclusively in their repair manuals. Data from Google Ngram Viewer, which analyzes millions of printed texts, shows “car hood” is over 100 times more frequent in American English than “car bonnet.” This isn’t just a matter of slang; it’s the correct technical term used in parts catalogs, dealership communications, and legal documents like vehicle titles.

The function remains identical: the hood is a hinged panel that provides access to the engine, radiator, battery, and other critical components. It is typically released by a latch inside the car’s cabin and secured with a secondary safety catch. When discussing car maintenance or issues, Americans will always use phrases like “pop the hood,” “look under the hood,” or “hood latch.”

A quick comparison clarifies the regional terminology:

Component	American English Term	British English Term
Front engine cover	Hood	Bonnet
Rear storage compartment	Trunk	Boot
Front directional light	Turn signal / Blinker	Indicator
Windshield	Windshield	Windscreen

Understanding this terminology is crucial for following repair guides, purchasing parts online, or communicating effectively with mechanics in the US. Using “bonnet” might be understood in context, but it immediately identifies the speaker as using British English or being unfamiliar with American automotive culture. The consistency of this term across all regions of the United States underscores its role as a fundamental piece of American English vocabulary.

[DeBeckett]

I’m a mechanic in Texas. In my shop for over twenty years, I’ve never had a customer ask me to “check under the bonnet.” It’s always, “Can you take a look under the hood?” If you walk into any auto parts store here and ask for a “bonnet strut,” the clerk will likely be confused. You need to ask for a hood strut or hood support shock. Using the right word just makes everything faster and gets you the correct part.

It’s the same for repairs. All our service manuals and wiring diagrams label it as the hood. When I order parts, the catalog system uses VIN numbers, and the output is always in American English—hood, trunk, fender. Sticking with “hood” avoids any simple but costly misunderstandings.

[DeRicardo]

My first confusing moment after moving from London to Chicago was at a gas station. My car’s temperature gauge spiked, and I told the attendant, “I think I need to check the coolant under the bonnet.” He gave me a puzzled look before saying, “Oh, you mean under the hood!” It was a small but immediate lesson.

This extends to everything. What I called the “boot” is the “trunk.” The “windscreen” is the “windshield.” For anyone driving in the US, using these American terms is practical. It ensures clear communication in stressful situations, like roadside assistance calls. I’ve learned to simply say “hood” because it’s the standard term everyone expects to hear, from mechanics to rental car agents.

[MacMaverick]

As a language teacher focusing on practical English, I drill this into my students: context is key. “Hood” for a car is American standard. “Bonnet” is British. It’s a classic example of regional variation.

We practice sentences like, “The engine oil is accessed under the hood,” or “The hood release lever is usually near the driver’s footwell.” I emphasize that while people might understand “bonnet” from context, using “hood” demonstrates familiarity with the local dialect. It’s not about which is correct globally, but which is correct for your audience. For someone interacting with American car culture, media, or manuals, “hood” is the only appropriate choice.

[DiCollin]

Working in automotive insurance claims, precise terminology is non-negotiable. In every accident report and assessment form, the front panel is listed as the hood. Writing “bonnet damage” would be marked as an error and require correction. This standardization is critical for our estimating software, which uses a massive database of parts priced and labeled using American English terms.

When a client calls in, we ask, “Is there damage to the hood, fenders, or bumper?” Using the universal industry term prevents confusion. The same applies to the rear—it’s always a trunk, not a boot. This consistency ensures accurate estimates, correct parts ordering, and clear communication between body shops, adjusters, and customers nationwide. It’s a fundamental part of how the industry operates efficiently in the US market.