When a driver who hit you didn’t have enough insurance to cover your injuries, your own underinsured motorist (UIM) coverage is supposed to step in. In practice, your insurance company often resists paying — and the only way to force the issue is arbitration. I have arbitrated UIM cases in San Francisco and across the Bay Area since 2009, including a $750,000 UIM arbitration award against CSAA Insurance for a client with a traumatic brain injury. If you have a UIM claim that is going nowhere, or if you are looking for a lawyer who actively moves these cases forward, I represent injury victims throughout the Bay Area and offer a free consultation.
Why So Many UIM Cases Languish for Years
I have reviewed too many UIM case files where the attorney did almost nothing for years. No arbitration demand. No push to select an arbitrator. No depositions. No hearing date on the calendar. The case just sits.
There is a reason for this pattern, and it is not a flattering one. California Insurance Code section 11580.2 gives a UIM claimant up to five years to complete arbitration once the underlying accident occurs, even though the claim must be preserved within two years by demanding arbitration or filing suit. That long outer horizon makes UIM cases easy to put on the back burner. They get pushed behind matters with more imminent deadlines. Months turn into years. The client calls for updates and is told the case is still being worked on. Evidence ages. Witnesses move. Medical providers retire. The defense gets stronger by doing nothing while the plaintiff’s lawyer does nothing back.
I take the opposite approach. The moment a UIM claim is ripe, I demand arbitration. I push opposing counsel to agree on a neutral arbitrator. I issue a Code of Civil Procedure section 998 offer early — before expert designation — to position the case for cost recovery if the eventual award exceeds the offer. I get a hearing date on the calendar, because without a hearing date, no real deadlines exist and the case will drift indefinitely. Once a hearing date is set, both sides have something to work toward, and the case moves.
If you have a UIM claim that has been sitting with another lawyer and you do not know what is happening with it, that is not normal. It is also not your fault. It is a sign that your case needs someone willing to actually work it.
$750,000 UIM Arbitration Award Against CSAA Insurance
One of my UIM arbitration results was a $750,000 award against CSAA Insurance Exchange (the AAA-branded auto insurer for Northern California). My client was a woman in her late 70s — vibrant, independent, the center of her family — who was riding as a front-seat passenger when an at-fault driver slammed into her vehicle at high speed on Interstate 880. She suffered a traumatic brain injury, post-concussive syndrome, and PTSD. The at-fault driver’s minimum-limits insurance was nowhere near enough.
CSAA’s opening offer was $125,000. The defense argued the injuries had resolved within twelve months and that any lingering symptoms were attributable to pre-existing anxiety. As we prepared for arbitration — designating a cognitive neurologist and a neuropsychologist, taking depositions, issuing a section 998 offer, and locking in a hearing date — CSAA’s offer rose. Their final pre-arbitration offer reached $300,000. We rejected it and arbitrated. The arbitrator awarded $750,000 — six times CSAA’s opening position and more than double their final offer.
That arc — $125,000 to $300,000 to $750,000 — is not unusual in UIM arbitration. It is what happens when an insurer’s offer is anchored to what they think they can get away with, not to what the case is actually worth. Their numbers moved as we showed we were prepared to arbitrate. They still did not move to fair value. The hearing did.
That outcome did not happen because the case was easy. It happened because the case was prepared the way a serious arbitration deserves to be prepared. CSAA’s defense playbook is sophisticated, but it is also predictable to attorneys who have seen it before. Their adjusters and defense counsel rely on plaintiffs’ lawyers to under-prepare. When the preparation is there, the outcome follows.
You can see the $750,000 UIM arbitration result on our results page, and read the full case study for the deposition strategy, expert development, and hearing presentation that produced it.
How UIM Coverage and Arbitration Work in California
Uninsured and underinsured motorist coverage is governed by California Insurance Code section 11580.2. The law requires insurers to offer UM/UIM protection in every auto bodily injury liability policy sold in the state. UIM coverage activates when an at-fault driver’s liability limits are insufficient to cover your damages — it pays for medical bills, lost wages, pain and suffering, and other non-economic damages up to your own policy limits after the at-fault driver’s coverage is exhausted.
Coverage extends beyond the named policyholder. Under section 11580.2(b), it includes named insureds, spouses, and resident relatives. A parent listed on an adult child’s policy, or living in the same household, is typically a covered insured with direct access to those benefits. That coverage belongs to the injured person — not to the policyholder. No one else can block the claim.
When the insurer disputes the amount of damages, the claim proceeds to binding arbitration under section 11580.2(f). A few procedural realities surprise clients and even some attorneys:
- Your insurance company is now the adversary. The carrier that has been collecting your premiums for years becomes the party fighting your claim. The same adjuster who was friendly when you filed will now position the file to pay as little as possible.
- Arbitration is binding. Whatever the arbitrator decides is the answer. There is no jury trial, no appeal on the merits, and very limited grounds to challenge the result. Preparation is everything.
- Discovery happens but is limited. Depositions are available. Expert designation under Code of Civil Procedure section 2034 applies. Document discovery and motion practice are typically narrower than in civil litigation, and the procedural rules are set by the policy and any applicable arbitration provider rules.
- The deadlines are real — and shorter than people think. You must preserve the claim within two years of the accident by demanding arbitration in writing or filing suit under section 11580.2(i), and arbitration must be completed within five years. Two years sounds like a long time. It is not, especially when the attorney handling the case is not actively pushing it.
- The arbitrator matters. Selection of the neutral arbitrator can be as consequential as the evidence itself. A retired judge with insurance defense leanings produces different outcomes than a plaintiff-experienced neutral. The selection process is negotiated, and a lawyer who has been through it knows which names to push for and which to strike.
Filing a UIM Claim Will Not Raise Your Insurance Rates
Many clients hesitate to file UIM claims because they fear their premiums will increase. Under California’s Proposition 103, enacted in 1988, that fear is unfounded. An insurer cannot raise your rates, cancel your policy, or deny renewal based on a UIM claim when you were not at fault for the accident. You have the right to pursue the full value of your UIM coverage without premium consequences.
The same principle applies when a family member is the injured party. If your mother, spouse, or another covered insured under your policy needs to file a UIM claim, your rates are protected. The insurer pays from the policy you have already funded with premiums. That is what UIM coverage is for.
Insurance Carriers I Have Arbitrated Against
Over the course of my practice since 2009, I have arbitrated UIM and UM claims against most of the major auto insurers operating in Northern California. Each carrier has its own claims-handling pattern, its own preferred defense firms, and its own appetite for fighting versus settling close to a hearing date. Familiarity with those patterns matters.
Carriers I have litigated and arbitrated UIM and UM claims against include CSAA Insurance (the AAA-branded carrier in Northern California), State Farm, Allstate, Geico, Farmers, Mercury, Liberty Mutual, and Nationwide, among others. If you are dealing with one of these carriers and your car accident claim has stalled, the question is usually not whether you have a case — it is whether your attorney is willing to actually move it forward.
Why Insurance Companies Lowball UIM Claims
There is a structural reason UIM claims get lowballed even when liability is clear and damages are substantial. The underlying tortfeasor has already paid their policy limits, so they are out of the case. The fight is between you and your own carrier — which means there is no third-party adjuster to blame, no defendant on the hook for a verdict in excess of policy limits. The insurer’s calculus is simple: pay as little as possible and let the deadlines run out if the plaintiff’s attorney is not moving the case.
UIM adjusters know which plaintiffs’ lawyers file demands and then disappear. They know which ones never get to arbitration. They price their offers accordingly. When the file shows the plaintiff’s attorney is preparing for a hearing — designating experts, taking depositions, issuing a section 998 offer, working toward a real arbitration date — the offer numbers move. That is not a coincidence. It is how the system works. The CSAA case is a clean example: the offer climbed from $125,000 to $300,000 as preparation advanced, but it took the arbitration itself to reach $750,000.
What to Expect When You Work With Me on a UIM Claim
I am a solo attorney with extensive trial experience. That means when you call my office, you are talking to me — not an associate, not an intake coordinator. I handle UIM cases personally from the first demand to the arbitration hearing. There is no handoff.
On a UIM matter, here is what you can expect:
- A prompt arbitration demand once the case is ripe — not months or years later.
- Active pressure to select an arbitrator rather than letting opposing counsel slow-walk the selection.
- A hearing date on the calendar so deadlines exist and the case has to move.
- A Code of Civil Procedure section 998 offer issued early — before expert designation — to position the case for cost recovery if the eventual award exceeds the offer.
- Depositions of the defense’s key witnesses when they matter — adjusters, examining physicians, witnesses to causation. Aggressive cross-examination of defense experts to expose internal inconsistencies and secure useful admissions.
- Expert designation done correctly and on time under Code of Civil Procedure section 2034. For TBI cases, that often means retaining both a cognitive neurologist and a neuropsychologist and preparing their testimony to address the insurer’s causation theory directly.
- A written arbitration brief that synthesizes the entire evidentiary record into a coherent narrative and rebuts each defense argument in sequence.
- Bilingual representation in English and Spanish with direct attorney communication — no interpreter required. (Información en español.)
I have built my practice since 2009 around one principle: prepare every case as if it is going to a hearing. Cases prepared that way tend to settle for fair value before the hearing happens. Cases that are not prepared that way tend to settle for less, or get arbitrated and lose.
Frequently Asked Questions
Answer: Underinsured motorist (UIM) coverage is part of your own auto insurance policy. It applies when the driver who caused your injuries either had no insurance or had policy limits too low to cover your damages. UIM coverage fills the gap between the at-fault driver’s policy limits and the actual value of your claim, up to your own policy limits. In California, UIM disputes typically go to binding arbitration rather than court under Insurance Code section 11580.2.
Answer: Under California Insurance Code § 11580.2(i), you generally have two years from the date of the accident to preserve a UM or UIM claim by filing suit against the at-fault driver or sending a written demand for arbitration to your insurer. The often-cited “five-year rule” applies only to completing arbitration once it has been demanded — it is not a deadline to file. Do not wait.
Answer: No. Under California’s Proposition 103, an insurer cannot raise your rates, cancel your policy, or deny renewal based on a UIM claim when you were not at fault for the accident. You have the right to pursue the full value of your UIM coverage without premium consequences. The same protection applies to family members and other covered insureds on your policy.
Answer: No. Under California Insurance Code section 11580.2(b), each covered insured has an independent contractual right to file a UIM claim directly with the carrier. That right belongs to the injured person — not to the policyholder. A parent listed on an adult child’s policy, or a resident relative living in the same household, has the right to file regardless of whether the policyholder objects.
Answer: When you file a UIM claim, your own insurance company becomes the adversary. The at-fault driver’s insurer has already paid its limits and is out of the case. Your insurer’s financial interest is to pay as little as possible. That is true regardless of which carrier you have — CSAA, State Farm, Geico, Allstate, Farmers, or any other. UIM adjusters routinely lowball claims, especially when the claimant’s attorney is not actively preparing for arbitration.
Answer: It depends on how aggressively the case is moved forward. A UIM arbitration with a hearing date on the calendar, active discovery, and timely expert designation can typically resolve in 12 to 18 months. A case that is filed and then allowed to sit can drift for three, four, or five years with no real progress. The attorney’s level of engagement is usually the determining factor, not the complexity of the case.
Answer: Yes. You have the right to change attorneys at any time. If your UIM case has been sitting with another lawyer with no real movement — no arbitration demand, no arbitrator selected, no hearing date, no depositions — that is a legitimate reason to seek a second opinion. I review case files like this regularly and offer a free consultation to evaluate where the case stands and what should happen next.
Answer: I handle UIM cases on a contingency fee basis. No upfront cost, no fee unless I recover for you. The percentage and case costs are explained at the free consultation and documented in writing in the retainer agreement.
Talk to a UIM Arbitration Lawyer About Your Case
If you have a UIM claim that has been sitting too long, or if you have just received a lowball offer from your own insurance company, I offer a free consultation. I will review the file, tell you honestly whether the case has been handled properly, and explain what should happen next. There is no fee unless I recover for you.
Call (415) 851-4557 or contact me to schedule a free consultation.
Hablo español. Llame al (415) 851-4557 para una consulta gratuita.