Uninsured Motorist Coverage in San Diego: Do You Need It?
About 1 in 5 California drivers carries no insurance. Learn how uninsured and underinsured motorist coverage protects San Diego drivers and what it costs.
—By Jose Flores—6 min read—
Picture this: you're stopped at a red light on Interstate 8 heading toward Mission Valley when another driver rear-ends you. You're shaken, your car is damaged, and you exchange information. Then you find out they have no insurance. Under California law, that driver is required to carry at least $15,000 in bodily injury liability per person. But a legal requirement means nothing if they ignored it. That's the moment uninsured motorist coverage either saves you or leaves you on your own.
How common are uninsured drivers in San Diego?
According to the Insurance Research Council, roughly 17–20% of California drivers on the road in recent years carried no auto insurance at all. That puts approximately 1 in 5 vehicles on San Diego freeways and surface streets as an uninsured risk to everyone around them. San Diego County's mix of high traffic volume on routes like I-5, SR-94, and I-15 means the odds of sharing the road with an uninsured driver on any given commute are not trivial.
California's minimum liability limits are also low enough that even insured drivers can fall short. Since 2025, the state's minimums are $30,000 per person and $60,000 per accident for bodily injury. A single emergency room visit, ambulance ride, and follow-up care can easily exceed $30,000. When the at-fault driver's coverage runs out, you're left with the remainder.
What is the difference between UM and UIM coverage?
Uninsured motorist (UM) coverage and underinsured motorist (UIM) coverage are related but solve two different problems. UM kicks in when the at-fault driver has zero insurance. UIM applies when the at-fault driver has some insurance, but not enough to cover your losses.
Coverage Type
When It Applies
What It Pays For
Uninsured Motorist (UM)
At-fault driver has no insurance
Medical bills, lost wages, pain and suffering
Underinsured Motorist (UIM)
At-fault driver's limits are too low
The gap between their limit and your actual costs
Uninsured Motorist Property Damage (UMPD)
At-fault driver has no insurance
Vehicle repair or replacement (CA-specific)
In California, UM and UIM bodily injury coverage are typically offered together. UMPD is a separate add-on that covers your vehicle when the other driver is uninsured. Without UMPD, you'd need to use your own collision coverage (and pay your deductible) to fix your car after an uninsured driver hits you.
Is uninsured motorist coverage required in California?
No, California does not require you to carry UM/UIM coverage. But there's a catch: your insurer is legally required to offer it to you under California Insurance Code Section 11580.2. If you decline, you must sign a written waiver confirming you were offered the coverage and turned it down.
This is where many San Diego drivers get tripped up. When purchasing a policy quickly online or over the phone, it's easy to click past the waiver without fully understanding what you're giving up. Some people assume that having "full coverage" (a term that usually means liability plus collision and comprehensive) automatically includes UM/UIM protection. It does not, unless you specifically selected it.
If you're unsure whether your current policy includes this coverage, check your declarations page. The coverage will appear as "Uninsured Motorist Bodily Injury" with a per-person and per-accident limit, such as $30,000/$60,000 or $100,000/$300,000.
How much does UM/UIM coverage cost in California?
Adding UM/UIM bodily injury coverage to an existing auto policy typically costs between $50 and $150 per year for a single vehicle, depending on your driving record, ZIP code, and chosen limits. UMPD is usually an additional $20–$40 per year. Relative to the potential cost of medical bills after a serious accident, this is one of the better-value additions available on a standard auto policy.
UM/UIM Limit
Estimated Annual Cost (Single Vehicle)
$30,000 / $60,000
$50 – $80
$100,000 / $300,000
$80 – $130
$250,000 / $500,000
$100 – $150
These are general ranges. Your actual premium will vary. The point is that moving from minimum limits to $100,000/$300,000 often costs less than $5 per month extra.
What does UM/UIM actually pay for after an accident?
UM/UIM bodily injury coverage can pay for medical expenses, rehabilitation costs, lost wages if you're unable to work, and in California, non-economic damages like pain and suffering. The coverage follows you, meaning it typically applies whether you're in your own car, a passenger in someone else's vehicle, or even hit as a pedestrian.
UMPD covers physical damage to your vehicle up to the policy limit, minus a deductible (usually $250). One important California-specific limitation: if you accept a UMPD payout, you may lose the right to pursue a separate lawsuit against the uninsured driver for property damage.
What limits should San Diego drivers carry?
A reasonable starting point for most San Diego households is $100,000 per person and $300,000 per accident in UM/UIM bodily injury coverage. This matches the standard recommendation from the California Department of Insurance for drivers with moderate assets. If you own a home, have savings, or carry an umbrella liability policy, coordinating your UM/UIM limits with those assets matters.
Drivers who only carry the state minimum of $30,000/$60,000 for UM/UIM are still better off than those who waive it entirely, but a single serious injury can exceed that limit quickly. If your own health insurance has high deductibles or limited coverage, your UM/UIM limits should reflect that gap.
How does an UM/UIM claim actually work?
When you file a UM or UIM claim, you file it with your own insurance company, not the at-fault driver's insurer (since either they have none, or their limits were exhausted). Your insurer then processes the claim under the terms of your UM/UIM coverage. The process looks like this:
Report the accident to your insurer and police within a reasonable timeframe.
Document everything: photos, witness contacts, medical records, and any police report number.
Your insurer assigns a claims adjuster to evaluate damages.
A settlement is negotiated. If you disagree with the amount, California law allows UM/UIM disputes to go to binding arbitration rather than court.
One thing to know: California requires you to notify your insurer of a potential UM/UIM claim within a reasonable period after the accident. Waiting too long can complicate or invalidate your claim, even if the coverage is in place.
What should San Diego drivers do right now?
Pull up your current auto insurance declarations page. Look for the "Uninsured/Underinsured Motorist Bodily Injury" line. If it reads "rejected" or the limit is $15,000/$30,000 or lower, a conversation with a licensed agent is worth your time.
At J. Flores Insurance Services in San Diego, reviewing the specifics of your auto policy is part of the process. With over 10 years of experience helping San Diego families understand exactly what their coverage does and doesn't do, the agency can walk through your declarations page line by line and identify where you might be exposed. If you have questions about your current UM/UIM limits or want to compare options, you can reach out directly and expect a response within one business day.
The 1 in 5 statistic isn't just a number. It represents real drivers sharing the same roads. Having the right coverage on your own policy is the only guarantee you control.
About the author
Written by Jose Flores at J. Flores Insurance Agency Inc.
