Can You Go Through a Car Wash with a Cracked Windshield? Risks, Safety Tips & What to Do
High-Pressure Water Can Make Cracks Spread
Automatic car washes use strong water pressure that can put additional stress on damaged auto glass. Even a small chip or minor crack can quickly grow larger during a wash, especially if the damage is already weakened.
Sudden Temperature Changes Stress the Glass
Many car washes use cold water, and if your windshield has been sitting in the hot sun, the sudden temperature change can cause the crack to expand. Glass naturally expands and contracts with temperature shifts, making existing damage worse.
Car Wash Brushes Can Vibrate the Windshield
In traditional car washes, spinning brushes and heavy equipment create vibrations and pressure against the windshield. Those vibrations may seem harmless, but they can worsen cracks or loosen already damaged glass.
Water Can Seep Into the Crack
Once water gets inside a crack or chip, it can weaken the integrity of the windshield even further. Dirt and debris can also enter the damaged area, making repairs more difficult and sometimes turning a simple repair into a full replacement.
Visibility and Safety Can Be Affected
A larger crack can obstruct your vision and compromise the structural strength of your windshield. Your windshield helps support your vehicle during accidents and assists with proper airbag deployment, so driving with worsening damage is never recommended.
Recently Had a Repair or Replacement? Wait Before Washing
Even after your windshield has been repaired or replaced, it’s important to avoid car washes for at least 48 hours. This gives the adhesive and sealants enough time to fully cure and properly bond to the vehicle. Going through a car wash too soon can weaken the seal, cause leaks, or affect the installation.
What Should You Do Instead?
If you notice a crack or chip:
- Avoid automatic car washes until it’s repaired
- Wait at least 2 days after a repair or replacement before washing your vehicle
- Keep the damaged area clean and dry
- Schedule your repair or replacement as soon as possible before the crack spreads
- Park in shaded areas when possible to reduce heat stress
A small repair today can help prevent a much more expensive windshield replacement later. At TruFit Auto Glass, we’re here to help keep your windshield safe, strong, and road-ready!
