Posted On: 05/27/2026
A Phoenix Mom’s Guide to Keeping Your Car (and Kids) Cool This Summer
By Brittney Spencer, Owner of Spencer Auto
If you’re anything like me, you’re not about to let the Arizona heat slow you down.
Between work, summer camp drop-offs, practices, errands, adventures, and everything in between, our days don’t stop just because it’s 110 degrees outside. Our cars keep our families moving, and we depend on them every single day.
But let’s be real…
If you’ve ever opened your car door in a Phoenix parking lot in July and felt that blast of 140-degree air hit you in the face, while your kids in the back seat instantly start melting down, you know exactly how intense our summers can be.
As a mom of two and the owner of Spencer Auto, I see firsthand how hard this heat is on both families and vehicles. Over the years, I’ve picked up some simple, practical ways to make summer driving safer and a whole lot more comfortable.
Because in Phoenix, staying cool isn’t just about comfort
it’s about keeping your family safe.
1. Avoid Dangerous Summer Breakdowns
Getting stuck on the side of the road in Phoenix heat—especially with kids is more than an inconvenience. It’s a real safety risk.
The truth is, most summer breakdowns aren’t random, they’re preventable.
Extreme heat puts added stress on:
- Batteries (they fail faster in Arizona heat)
- Cooling systems (radiators, coolant, hoses)
- Belts and hoses that can crack and fail
- Tires, which are more prone to blowouts in high temperatures
If your car has been “mostly fine” but showing small warning signs, summer is when those turn into breakdowns.
A quick summer readiness inspection can catch:
- A weak battery
- Cooling system issues
- Tire problems
Preventing a breakdown isn’t just about convenience, it protects your family.
2. Make Sure Your AC Is Ready Before Peak Heat
One of the biggest mistakes I see every single summer is waiting too long to deal with AC issues. AC systems can fail gradually a small refrigerant leak, a compressor running on borrowed time, a part that's hanging on at 95 degrees but won't survive 115. What feels like "a little weak" in May often turns into no cold air at all by July or sooner.
AC isn't keeping up the way it should right now, the safest move is to get it checked before summer is in full swing, not after.
3. Check Your Back Seat AC (Where Your Kids Sit)
Your front vents might feel great but what about the back seat?
Take a minute to check:
- Is air coming out?
- Is it cold?
- Is it weak?
Many families don’t realize there’s a problem until summer is at its worst.
Common causes:
- Rear A/C has been switched off
- Blower motor issues
- Blend door problems
If you’re comfortable in the front but your kids aren’t, something isn’t right.
4. When Buying a Car, Prioritize Rear AC Vents
If you have kids, this is something I strongly recommend thinking about when choosing a vehicle.
Not all cars are created equal when it comes to keeping the back seat cool.
Rear AC vents make a big difference. They help deliver cold air directly to your kids instead of relying on airflow from the front.
If your current vehicle doesn’t have rear vents, a simple solution is using something like a Noggle,a flexible duct system that directs cool air from a front vent to the back seat.
It’s not a perfect replacement, but it can make a noticeable difference in keeping your kids more comfortable.
5. Always Check Car Seat Buckles Before Use
Metal buckles can reach 180–200 degrees inside a parked car.
Before buckling:
- Touch the buckle with the back of your hand
Quick tip:
Cover the seat with a towel or cloth when you park to keep it cooler.
6. Pre-Cool Your Car Before Loading Kids
If possible, let your car cool down for a couple minutes before loading your kids.
If your vehicle has remote start, use it. Starting your car while you're still inside gives the AC a head start.
Best method:
- Start the car (or use remote start)
- Turn AC on high
- Roll windows down for about 30 seconds
- Roll them up and let the AC finish cooling
7. Turn Off Recirculation Before You Shut the Car Off
Before turning your car off, turn off the recirculation setting.
If left on, your car will restart circulating super-heated air trapped inside.
Turning it off allows your system to pull in outside air on startup, which is much cooler than what’s trapped inside your vehicle.
8. Use Sunshades (Front and Back)
Sunshades are one of the easiest ways to reduce heat inside your vehicle.
Use:
- A reflective windshield sunshade
- Mesh rear window shades
They help block direct sunlight and keep temperatures down.
9. Park Smart Whenever You Can
A car in direct sun can be 30–40 degrees hotter inside than one in shade.
If no shade is available:
- Park with the rear of the vehicle facing the sun
10. Consider Legal Window Tint for Heat Protection
Window tint is one of the most effective ways to reduce heat inside your vehicle, but it’s important to stay within Arizona law.
Quality tint helps:
- Block heat and UV rays
- Keep your cabin cooler
- Protect your kids’ skin from direct sunlight
In Arizona, tint laws limit how dark your windows can be, especially on the front side windows.
A reputable shop can help you choose a legal, high-quality tint that still provides significant heat protection without risking a ticket.
If you spend a lot of time driving with kids, tint is one of the best upgrades you can make for comfort.
11. Keep Water in the Car (The Right Way)
Always have water available, but avoid leaving disposable plastic bottles in your car long-term.
In extreme heat, they can warp and degrade.
A better option:
- Insulated or stainless steel bottles
- Stored in a small cooler bag
12. Never Leave a Child in a Parked Vehicle
This deserves to be repeated, because it matters that much.
Never leave a child in a car. Not even for a minute.
A vehicle can reach deadly temperatures in under 10 minutes.
If you ever see a child alone in a vehicle, call 911 immediately.
From Our Family to Yours
Phoenix summers are tough—but a few simple habits can make a big difference.
At Spencer Auto, we see every day how heat impacts vehicles and how preventable many of these issues really are.
If your car isn’t keeping up, or you just want peace of mind before the worst of summer hits, we’re here to help.
Because at the end of the day, we don’t just fix cars, we help take care of families.
Stay cool out there, Phoenix.
— Brittney
