Controllo il poggiatesta e la barra di sicurezza.

Here, controllo is a verb, not a noun. It is the first-person singular of controllare in the present tense, so it means I check, I inspect, or I verify.

A useful note: Italian controllare often means to check, not just to control in the English sense.

In Italian, subject pronouns like io are often omitted because the verb ending already shows who is doing the action.

• controllo = I check
• controlli = you check
• controlla = he/she checks

So Controllo il poggiatesta e la barra di sicurezza is perfectly natural.
You could say Io controllo..., but that usually adds emphasis, like I’m the one checking...

It is the present indicative tense.

So the sentence can mean:

• I check the headrest and the safety bar
• depending on context, sometimes I am checking the headrest and the safety bar

Italian present tense often covers both the simple present and the present progressive ideas that English separates.

Because Italian nouns have grammatical gender:

• poggiatesta is masculine singular, so it takes il
• barra is feminine singular, so it takes la

So:

• il poggiatesta
• la barra di sicurezza

This does not necessarily mean the objects are somehow masculine or feminine in a real-world sense; it is just part of Italian grammar.

Poggiatesta literally means something like head-rest.

It is built from:

• poggia- from poggiare = to rest / to place
• testa = head

So il poggiatesta = the headrest.

Italian often forms compound nouns like this.

Di sicurezza is a very common Italian structure meaning for safety or safety-related.

So:

• barra di sicurezza = safety bar

Using della sicurezza would sound like the bar of the safety, which is not the natural way to express this idea here.

Italian often uses noun + di + noun to describe the function or type of something:

• cintura di sicurezza = seat belt
• occhiali da sole = sunglasses (different structure, but similar idea of purpose/type)

Yes, here e simply means and.

It connects the two direct objects:

• il poggiatesta
• la barra di sicurezza

So the speaker is checking both items.

A pronunciation note: e is pronounced like eh, not like the English letter name ee.

Yes. Controllo can also be a noun meaning check, inspection, or control, depending on context.

For example:

• faccio un controllo = I do a check / I carry out an inspection

But in your sentence, it is clearly a verb because it is followed directly by the objects being checked.

Usually not in this sentence. Here, I check or I inspect is the natural meaning.

Although controllare can sometimes overlap with English to control, in many everyday contexts it means:

• to check
• to inspect
• to make sure

So in this sentence, the idea is that the speaker is verifying the condition or position of the headrest and the safety bar.

Because sicurezza is part of the expression barra di sicurezza.

The main noun is barra, and di sicurezza describes what kind of bar it is. So you do not need another article there.

Compare:

• la barra di sicurezza = the safety bar
• la sicurezza = the safety

Those are different structures.

A helpful approximation is:

pohj-jah-TEH-sta

A few points:

• gg before i gives a sound like the j in jam
• the stress is on -te-: poggia-TE-sta

So it sounds roughly like poj-jah-TEH-sta.

No, this is very normal Italian word order:

Verb + object + and + object

• Controllo = verb
• il poggiatesta = first object
• e = and
• la barra di sicurezza = second object

Italian often follows this straightforward pattern, especially in simple statements.

Yes, very easily. It sounds natural in contexts such as:

• a safety procedure
• a checklist
• an operator’s routine
• a first-person narration of actions

Because controllo is in the first person, it sounds like the speaker is describing their own step in a process: I check the headrest and the safety bar.