I Got Rear-Ended. What Happens Next?

Being rear-ended is the most common crash in California and one of the most confusing to deal with afterward. Fault is usually clear, which makes people expect a simple process; then the calls, forms, delayed neck pain and repair disputes begin. This guide walks through what typically happens and the decisions you will face.

Fault: why it is usually the rear driver

California Vehicle Code § 21703 requires drivers to follow at a reasonable and prudent distance given speed, traffic and road conditions. A driver who hits the car in front almost always violated it. The rear driver’s insurer may still argue that you stopped suddenly, reversed, had broken brake lights or were partly at fault. Under California’s pure comparative fault rule, any share assigned to you reduces your recovery by that percentage. See fault rules.

The first week

• Your insurer: report the crash. If you have collision coverage you can repair through your own insurer, who then recovers from the other insurer (subrogation) and refunds your deductible. This is often faster than waiting for the other insurer to accept liability.
• The other insurer: an adjuster will call, often within a day or two, asking for a recorded statement, medical authorizations and sometimes offering a quick settlement. You are not required to give a statement. Do not sign broad medical releases. Do not accept an injury settlement before you know your injuries.
• Your body: neck and back stiffness, headaches and shoulder pain commonly begin 24–72 hours later. Get evaluated. See whiplash.
• The SR-1: file with the DMV within 10 days if there was injury or damage over $1,000. See what to do after a crash.

Your car

The at-fault insurer owes the reasonable cost of repair or, if the repair cost approaches the vehicle’s value, its actual cash value. You may choose your own repair shop. Rental or loss-of-use is owed for the reasonable repair period. Diminished value—the loss in resale value of a repaired vehicle—is recoverable in California against the at-fault driver’s insurer, though it must be documented and argued. Low visible damage does not mean low injury; see low-speed collision claims.

Your medical bills

The at-fault insurer does not pay bills as they come in; it pays a lump sum at the end. In the meantime, use your health insurance, medical payments coverage on your own auto policy, or (for some providers) treatment on a lien. See medical bills after a car accident.

Weeks two through eight

Most whiplash improves in this window. Continue treatment as advised; gaps are used against you. Keep a record of missed work and limited activities. If pain persists beyond about six weeks or radiates into an arm or leg, ask for further evaluation—a “soft tissue” injury can turn out to be a disc or joint injury. Do not settle the injury claim until your doctor has a clear picture of your recovery.

Settling or getting help

Simple claims—clear fault, minor injury that resolved, modest bills—are often resolved directly with the insurer. Consider legal help when the injury is significant or ongoing, when imaging shows a disc or joint injury, when the insurer disputes fault or causation, when the at-fault driver is uninsured or underinsured, when a commercial vehicle was involved, or when you simply do not have the time or health to manage it. Tell us about your accident for the firm’s free case evaluation.

Deadlines

Two years from the crash for injury claims; three for property damage; six months to present a government claim if a public vehicle or dangerous road is involved. See deadlines.

Common questions

The other driver’s insurer wants a recorded statement. Do I have to give one?

No. You have no contractual relationship with the other driver’s insurer. You may decline or ask to provide a written account later. Your own insurer’s policy typically does require your cooperation.

The adjuster says my car damage is too minor for me to be hurt. Is that right?

No. Modern bumpers absorb low-speed impacts with little visible damage while occupants still experience significant forces. Medical documentation, not photos of the bumper, determines the injury claim.

Should I use my own insurance for repairs if the other driver was at fault?

Often yes, if you have collision coverage. It is usually faster, and your insurer recovers from the at-fault insurer and refunds your deductible. It should not raise your rates for a not-at-fault crash under California law (Insurance Code § 1861.02).

Sources and official resources

• Vehicle Code § 21703 (following too closely)
• Civil Code § 1714 (general duty of care / negligence)
• Vehicle Code § 16000 (SR-1 report to DMV within 10 days)
• California Department of Insurance — auto claims help

Links go to official government, court and public-health sources. Laws change; verify current text before relying on it.