Skip the auto shop - Our mechanics make house calls

Q: reduced engine power - safety driving

asked by on

When trying to accelerate if i hit the gas pedal down a warning sign will appear reduced power engine and it will show safety driving and will lose power reallyyyyyy lose power. And then i turned off after parking and turning on again everything is ok. But today that happened to me and did not start up again. I appreciate your help

My car has 200000 miles.
My car has an automatic transmission.

A: Hello. "Safety driving" is also k...

Hello. "Safety driving" is also known as limp-mode. This is a program set to control the engine performance and keep it at a bare minimum in order to get the vehicle to safety. This mode is triggered by the vehicle’s computer in order to keep further damage from occurring. When this mode is triggered, there is an issue that has been detected by the computer and you need to know what it is. Have the vehicle scanned for diagnostic troubleshooting codes by a technician, or you can have it read at most automotive parts stores. Once you know what system is causing the limp-mode, you can proceed with diagnosis and repair. Unfortunately there are quite a few components that may cause limp-mode, and it is simplest to obtain the information directly from the computer.

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: only had code P0171 then I went back and this time I also got a code P0068 throttle body along with the P0171

Hi there. Those codes may or may not be related. Proper diagnostic processes will determine the root cause of the failures. When the ECM detects a fault it stores codes. It does not know why or what caused the fault,...

Q: Check engine light came on & car drove roughly

You are absolutely correct. The MIL came on as a result of a fault in the engine computer. Because your vehicle is newer than 1996, then it has OBD-2 diagnostics which will allow any scan tool with OBD-2 capabilities to...

Q: Why is my minivan going into "limp mode"?

Hi there. There are many things in your vehicle that will contribute to a limp mode. The engine is putting out too much or too little emissions, the transmission is not working properly, or the brake system could have failed....

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.