Every driver in Pennsylvania is required to carry auto insurance, but not every driver complies with the law. According to the Insurance Research Council, approximately 7.6 percent of Pennsylvania motorists are uninsured at any given time. When an uninsured or underinsured driver causes an accident, the injured party can be left facing significant medical bills with no clear source of compensation. That is where uninsured motorist and underinsured motorist coverage becomes essential.
Understanding how UM and UIM coverage works under Pennsylvania law can make the difference between recovering full compensation for your injuries and absorbing thousands of dollars in out-of-pocket expenses.
What Is Uninsured Motorist Coverage?
Uninsured motorist coverage, commonly referred to as UM coverage, is a type of auto insurance that protects you when the at-fault driver has no liability insurance at all. If you are hit by a driver who has no insurance, your own UM policy steps in to cover your medical expenses, lost wages, and pain and suffering up to your policy limits.
Under Pennsylvania law, insurance companies are required to offer UM coverage to every policyholder. However, policyholders are permitted to reject this coverage in writing. This is governed by 75 Pa.C.S. § 1731, which sets out the requirements for offering and waiving uninsured motorist protection.
If you did not explicitly reject UM coverage in writing when you purchased your policy, Pennsylvania law presumes that you have it. This is an important distinction, because many drivers are unaware of whether they carry this coverage until they need it.
What Is Underinsured Motorist Coverage?
Underinsured motorist coverage, or UIM, applies when the at-fault driver has insurance but their policy limits are too low to cover the full extent of your damages. For example, if you suffer $150,000 in injuries but the at-fault driver only carries $50,000 in liability coverage, your UIM policy can make up the difference.
Like UM coverage, UIM coverage must be offered to all Pennsylvania policyholders under 75 Pa.C.S. § 1731. Policyholders can reject it in writing, but if no valid written rejection exists, the coverage is presumed to be in effect.
UIM coverage is particularly important in Pennsylvania because the state’s minimum liability requirements are relatively low. Pennsylvania requires only $15,000 per person and $30,000 per accident in bodily injury liability coverage. A serious accident can easily generate medical bills, rehabilitation costs, and lost income that far exceed these minimums.
How Stacking Works in Pennsylvania
One of the most valuable but least understood features of UM and UIM coverage in Pennsylvania is the concept of stacking. Stacking allows policyholders to multiply their coverage limits by the number of vehicles insured on their policy.
For example, if you carry $100,000 in UIM coverage and insure three vehicles on the same policy, stacking would give you $300,000 in total UIM protection. This can dramatically increase the amount of compensation available to you after a serious accident.
Pennsylvania law permits two types of stacking. Intra-policy stacking allows you to stack coverage across multiple vehicles on the same policy. Inter-policy stacking allows you to stack coverage from policies covering different vehicles in your household. The rules governing stacking are found at 75 Pa.C.S. § 1738.
Insurance companies are required to offer stacking, but they can also offer a premium discount if you agree to waive it. Many drivers waive stacking to save money on premiums without fully understanding the financial protection they are giving up.
When UM and UIM Claims Arise
UM and UIM claims can arise in a variety of situations beyond the obvious scenario of being hit by an uninsured driver.
• Hit-and-run accidents. If the at-fault driver flees the scene and cannot be identified, your UM coverage can provide compensation for your injuries.
• Accidents involving stolen vehicles. If the vehicle that hit you was stolen, the owner’s insurance may not cover the accident, making your UM policy the primary source of recovery.
• Out-of-state accidents. If you are injured in another state by a driver with insufficient coverage, your Pennsylvania UIM policy can fill the gap.
• Pedestrian and bicycle accidents. UM and UIM coverage extends to you even when you are not driving. If you are struck by an uninsured motorist while walking or cycling, your own auto policy can still provide coverage.
Filing a UM or UIM Claim in Pennsylvania
Filing a claim against your own insurance company for UM or UIM benefits is fundamentally different from filing a third-party liability claim against the at-fault driver’s insurer. When you file a UM or UIM claim, you are making a first-party claim, which means you are seeking benefits from your own policy.
Your insurance company still has an obligation to evaluate your claim in good faith. However, because the insurer is paying out of its own pocket rather than on behalf of an insured driver, there can be an inherent tension in the process. Insurers may scrutinize UM and UIM claims more aggressively, dispute the severity of injuries, or argue that the at-fault driver was not actually uninsured or underinsured.
This is why many accident victims in the Lehigh Valley personal injury lawyer community recommend consulting with an attorney before filing a UM or UIM claim. Having legal guidance can help ensure your insurer processes the claim fairly and that you receive the full benefits your policy provides.
Common Disputes in UM and UIM Cases
Several types of disputes commonly arise in UM and UIM claims in Pennsylvania.
• Coverage existence. The insurer may argue that you validly rejected UM or UIM coverage when you purchased your policy. If the rejection form is missing or improperly executed, the coverage is presumed to exist.
• Stacking disputes. Insurers may argue that you waived stacking, reducing the available coverage. The validity of the stacking waiver depends on whether it was properly signed and whether the terms were clearly disclosed.
• Damages valuation. Even when coverage is not in dispute, the insurer may offer a settlement that undervalues your injuries, lost income, or pain and suffering.
• Subrogation and offsets. If you received partial compensation from the at-fault driver’s insurer, your UIM carrier may attempt to offset that amount against your UIM claim, reducing the total payout.
Why UM and UIM Coverage Matters for Pennsylvania Drivers
Carrying adequate UM and UIM coverage is one of the most important financial decisions a Pennsylvania driver can make. Accidents involving uninsured and underinsured motorists are far more common than most people realize. Without this coverage, you could be left paying for someone else’s negligence out of your own pocket.
The cost of adding or increasing UM and UIM coverage is typically modest compared to the protection it provides. Stacked coverage in particular can offer substantial financial security for relatively little additional premium. For families with multiple vehicles, the benefit of stacking can be significant.
Understanding your rights under 75 Pa.C.S. § 1731 through § 1738 ensures that you can make informed decisions about your auto insurance and that you are prepared to pursue the full benefits available to you if you are ever injured by an uninsured or underinsured driver on Pennsylvania roads.