Maybe you’re walking behind your car or opening your trunk, and then boom, you see it. A crack on your rear windshield.
If you have a newer vehicle with Automatic Emergency Braking or Adaptive Cruise Control, then you may have cameras inside the windshield. And while those services allow for 46% fewer rear-end collisions, they also mean higher repair costs for windshield replacement.
So when do you need to worry about a crack, whether great or small, in your rear windshield?
The Reality of Rear Windshield Damage
Unlike your front windshield, which is made of laminated safety glass designed to stay intact during impact, rear windshields are typically constructed from tempered glass. This means they’re designed to shatter into small, relatively harmless pieces rather than hold together when damaged. This makes rear windshield cracks less immediately dangerous than front windshield damage.
However, this doesn’t mean you should ignore the problem entirely. A crack in your rear windshield can compromise the structural integrity of your vehicle, particularly in the event of a rollover accident where the roof needs maximum support.
When to Take Action Immediately
Certain types of rear windshield damage require urgent attention. If you notice the crack is spreading rapidly, spans more than six inches, or is accompanied by loose glass pieces, you should avoid driving until repairs are made. Additionally, if the crack obstructs your view through the rear window or interferes with your backup camera, it becomes a safety hazard that needs immediate addressing.
Temperature changes can also accelerate crack growth. If you live in an area with extreme weather fluctuations, even a small crack can quickly become a major problem as the glass expands and contracts.
Factors That Influence Urgency
The location and size of the crack play important roles in determining how worried you should be. Cracks along the edges of the windshield are typically more serious than those in the center, as they can compromise the seal and allow water to enter your vehicle. Similarly, cracks that intersect with other damage or extend to the window frame require more urgent attention.
The age and overall condition of your vehicle also matter. If your car is newer or you’re planning to keep it for several more years, addressing the crack promptly can prevent more expensive repairs later. However, if you’re driving an older vehicle that you plan to replace soon, you might reasonably prioritize other maintenance needs.
Making the Right Decision
While a cracked rear windshield isn’t typically an emergency like front windshield damage, it shouldn’t be completely ignored. Most experts recommend getting it inspected by a professional within a few weeks of discovery. A qualified technician can assess whether the crack poses any immediate safety risks and provide guidance on timing for repairs.
Consider your daily driving habits as well. If you frequently drive on rough roads, carry heavy loads, or regularly experience significant temperature changes in your area, these factors can accelerate the deterioration of an already compromised rear windshield.
The bottom line: while you probably don’t need to rush to the repair shop today, don’t ignore a rear windshield crack forever. A proactive approach to automotive glass repair is always safer and often more cost-effective than waiting until the damage becomes severe.
If you have questions about your windshield or need auto body and collision repair for your vehicle, please get in touch with us today.