A crash with a commercial truck works differently than a crash between two cars — medically, legally, and in what happens to the evidence. Here's what helps, step by step, from the first minutes through the first weeks.
At the scene: safety, then the record
The first priorities are the same as any crash: get to safety, call 911, and accept medical evaluation at the scene. With a truck involved, the police report matters even more than usual — it captures the driver's name, the carrier's name, the truck and trailer information, and the responding officer's observations, all of which a claim will need. If it's safe to do so, photos help: the vehicles from multiple angles, their positions, the road, any skid marks or debris, and the truck's company markings and DOT number.
Get checked even if you feel okay
Truck crashes involve forces that passenger-car crashes don't, and some injuries — concussions, soft-tissue damage, internal injuries — commonly surface hours or days later. A medical evaluation within the first day or two does two jobs at once: it protects your health, and it starts the documented record that connects your injuries to the crash. Gaps between the crash and the first visit tend to become arguments later.
Know what makes truck evidence different
This is the step most people don't learn until it's late. Much of the strongest evidence in a truck case is created and held by the trucking company: the driver's hours-of-service logs, electronic logging device data, inspection and maintenance records, and dispatch records. Federal rules cap how long commercial drivers can be on the road — generally 11 hours of driving within a 14-hour window, with required breaks and weekly limits — and the records that show whether those rules were followed aren't kept forever. Federal regulations require supporting driver-log documents to be retained for six months, and routine retention periods for other records can be similarly short. A preservation letter — a formal notice to the carrier to retain specific evidence — is one of the earliest tools in a truck case, and it works best when it's sent early.
Federal rules also shape who's responsible and what insurance is there. Trucking companies must carry substantially more liability coverage than passenger vehicles — federal law sets a minimum of $750,000 for most interstate carriers, and many carry more — and post-accident drug and alcohol testing is required for commercial drivers in certain crashes. None of this decides a case by itself, but it means a truck claim usually has more coverage, more rules, and more records in play than a car claim.
Be careful with early calls and early paperwork
It's normal for the carrier's insurer to make contact quickly. You have the right to decline to give a recorded statement to the other side's insurer, and the right to have any settlement paperwork reviewed before signing — early offers can arrive before the full extent of injuries is known, and a signed release generally ends the claim. If partial fault comes up, it's worth knowing Arizona's rule: the state uses pure comparative fault, where fault is assigned in percentages based on the evidence, and a person's recovery is reduced only by their own proven share.
Check your own policy too
Your own auto policy can matter in a truck case more than people expect. Uninsured and underinsured motorist coverage — which Arizona law requires insurers to offer — can apply when coverage gaps appear, and medical payments coverage can help with early bills. Reading your declarations page, or having it reviewed, is a step that costs nothing.
Mind the clocks
Arizona generally allows two years to file a personal injury lawsuit — but the practical clocks are much shorter: carrier record-retention windows measured in months, scene evidence that disappears in days, and, if a claim involves a government entity, a notice requirement of 180 days. In truck cases, the gap between the legal deadline and the evidence window is the widest of any crash type — which is why early action matters more here than almost anywhere else.
Where Saguaro Injury Law fits
We handle truck accident cases across Arizona: preservation letters out early, your treatment and records documented from the start, your own policy's coverage reviewed, and every conversation available in English or Spanish. Free consultation, no fee unless we win, a real person answering any hour: (602) 217-0000.