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Check Engine Light On? Know What Your Car Said Before Anyone Quotes You a Price.
TerraTell plugs in under the dash and talks to your phone. Keep one in each car in the family.
See the Code That Turned the Light On
Look Up 50 Common Codes on a Printed Plain-English Card
Check a Used Car Before You Pay
Free App for iPhone and Android
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Note: Not Available on Amazon or eBay
🔧 A Used-Car Dealer's Trick
“I can see when the last codes where erased on a vehicle…”
A used-car dealer who scans dozens of cars at every auction
120-Day Money-Back Guarantee
Not thrilled? We don’t want your money. No questions asked.
Free Shipping With Roadside Plus
Roadside Plus sends help 24/7 when your car won't go. The first 14 days are free, then it's ninety-nine dollars and ninety-seven cents every 8 weeks until you cancel. It's on at checkout, so your order ships free. Turn it off and shipping is $7.95.
2-Year Warranty
Every reader is covered for two full years.
You'll Be Glad TerraTell Is in the Glove Box
When the Light Comes OnRead the code in your driveway.
Before You Buy a Used CarSee if its codes were just cleared.
At the Repair CounterWalk in knowing the code.
On the Shoulder at NightTell whoever you call what the car said.
Did You Know a Shop Can Charge You Just to Read That Light?
The check engine light only says one thing: something's wrong.
It comes on for a loose gas cap. It also comes on for an engine that's about to quit.
And it looks exactly the same both times.
So you hand over your keys and wait for someone to tell you which one it is.
Whoever reads the code first gets to tell you what it means, and what it costs.
One driver wrote:
“The Dealership cost $150 just to see what the cause is”
Everything You'd Usually Try Can Leave You Guessing
The parts store will read it for free, but only during store hours.
A shop can bill you for a look, then bill you again if the light comes back.
History reports can show a used car's past. They can't show what the car is reporting today.
And a seller can clear the light right before you walk up to the car.
Every one of them puts someone else between you and what your car said.
Meet TerraTell: Your Car's Own Report, on Your Phone
TerraTell is a small white reader, about the size of a matchbox.
It fits the port under your dash, near your left knee. It's the same port the shop plugs into.
Open the Car Scanner app, and the code shows up on your phone.
A code like P0457 doesn't mean much on its own. Your Plain-English Code Card says the car thinks the gas cap is loose or missing.
On an iPhone, you connect inside the app, not in Bluetooth settings.
Two TerraTells cost less than that one visit to read the light.
Unplug it when you're done. It lives in the glove box until you need it.
How a Reader This Small Gets the Code Out of Your Car
A car with that port under the dash keeps a record of its own trouble codes.
The moment that light turns on, the car has already stored a code for it.
TerraTell reads that stored code for you.
It's like taking your car's temperature. You find out something's wrong and which part of the car raised the alarm, so a mechanic knows where to start.
It also shows problems stored before the light comes on.
You'll see if the car's smog checks are ready before you pay for the test.
And you can check the battery reading before a long drive.
So the next time that light comes on, the first one to read it is you.
Don’t Take Our Word for It… Try It for 120 Days Risk-Free
Every order comes with a 120-day money-back guarantee.
Order your TerraTells today and plug one into your car the day they arrive.
If TerraTell won't connect and read your car, send it back. Full refund, no questions asked.
What Makes TerraTell Different?
Other plug-in readers can pull the code too. TerraTell comes with the help to use it. You get printed cards that tell you what to do next, setup steps for your phone, and a real person who answers your email.
Free Parts-Store Scan
Other Plug-In Readers
Reads it at home, any hour
Checks used cars on the lot
Setup card for iPhone and Android
Varies
Plain-English card for common codes
Used-car check card
Setup help from a real person
No setup needed
Varies
120-Day Guarantee
Varies
What Makes TerraTell Different?
Other plug-in readers can pull the code too. TerraTell comes with the help to use it. You get printed cards that tell you what to do next, setup steps for your phone, and a real person who answers your email.
Free Parts-Store Scan
Other Plug-In Readers
Reads it at home, any hour
Checks used cars on the lot
Setup card for iPhone and Android
Varies
Plain-English card for common codes
Used-car check card
Setup help from a real person
No setup needed
Varies
120-Day Guarantee
Varies
What People Did With Their Own Code
Three real comments from people who read their own code. Under each one is the TerraTell card that walks you through the same thing.
“It took me less than 2 minutes to pull up the code on the app. Been to mechanic shops before and it takes them the same time to read it on their computer.”
Then your Plain-English Code Card tells you what the code means, and gives you a question to take to the shop.
“…Every single car we saw had codes or had them cleared recently except one. We took it to a mechanic after we checked it out ourselves.”
Your Used-Car 5-Minute Check adds a second clue. If more than one smog check says “not ready,” the codes may have been cleared a short time ago.
“It also helps to have your own diagnostics tool! You can go into a shop and tell them the code and say that’s all you want looked at/fixed. Works every time!”
The counter card gives you the first question: “What test will you run to find the part that caused it?”
Inside Every TerraTell Order
Your TerraTell readers. One small white reader for each car, in packs of 1, 2 or 3.
Setup Card. A photo of where the port hides, then the steps for iPhone and for Android.
Plain-English Code Card. The common codes and what they mean, in everyday words.
Used-Car 5-Minute Check. What to look at before you pay, plus two free public lookups for recalls and theft records.
What to Say at the Counter. Simple questions to ask before you say yes to any repair.
ONE READER, TWO JOBS
How To Use It
01Push TerraTell into the port under the dash.
Turn the car on. Connect in the app.
03Read the code on your phone.
01Turn the key on. The engine light should come on. If it doesn't, ask why.
02Plug in. Check the miles since the codes were cleared.
03Only a few miles? Ask the seller about it.
