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

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: The battery drops to yellow part then back up.

Even though you have already checked the battery, the charging system will need to be thoroughly tested to see if it is charging at idle and at about 2000 RPMs. Part of a thorough charging system test will be to...

Q: Dash lights and radio randomly turn on and off

Hello. This is something that can be fixed. It is possible that when the starter was replaced, something was left loose and as a result, this has caused the lights on your dashboard to flash on and off. I...

Q: I don't know whether it is the alternator or battery

The best way to determine if your alternator or battery has failed is to start with a fully charged battery. I would recommend having your battery fully charged. If the battery will not accept a charge, the battery has likely...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.