Skip the auto shop - Our mechanics make house calls

Q: Transmission doesn't shift, gets stuck in fail safe mode.

asked by on

The truck shifts normally until it is driven 10 - 15 miles , then when I restart it and go it doesn't shift. I read online that it is going into a " fail-safe" mode. It will move and reverse is good , just seems like it is stuck in 2nd gear. HELP!!!!! Thank You

My car has 158000 miles.
My car has an automatic transmission.

A: Depending on the circumstances, it may in f...

Depending on the circumstances, it may in fact be in "fail-safe" mode. When this happens you will normally also have a Check Engine Light on which will usually cause fault codes to be registered in the ECU. When the vehicle goes into safe mode, this is done by the ECU in order to prevent further damage to the failing part or component (whatever that may be). You will need to have the truck hooked up to a scanner to download these codes to further narrow down the problem. To avoid any unnecessary repairs, I would recommend having an expert from YourMechanic come to your home to perform a diagnostic check on your shifting issue.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Hey there! I can't seem to find the location of my canister purge valve on my 91 Chevy G20 5.7L 350

On these vehicles, the canister purge valve is typically located either on top of, or just in front of, the fuel tank. It has been my experience that they are most commonly found mounted to the top of the fuel...

Q: wont shift into 3rd gear

At this age of the car, you will likely need a transmission rebuild. The bands that wrap abound the planetary gear assembly typically crack. Of course, checking the transmission fluid level and condition of the car while running in park...

Q: fuel leak under hood

Hi there: Without being there to physically inspect your Mazda, it's impossible for us to tell you what is causing your fuel leak. If it's with the fuel rail however, you should take the time to replace the entire rail,...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...