How to Disable Limp Mode Permanently? Causes, Effects & Solutions

How to Disable Limp Mode Permanently? Causes, Effects & Solutions

Limp mode is basically a low-power mode detected in your car. Limp mode provides enough power to your car through which you can reach a nearby repair shop or your home without any engine damage or transmission damage. However, you may wonder how to disable limp mode permanently.

You should avoid taking long routes and highways to travel. However, you can disable limp mode if you restart your car, reset the battery, or top off the fluids. A question arises here: ‘’Is it safe to disable limp mode’’? In this article, we will discuss the actual working of limp mode, including its benefits, effects, causes, and way forward.

What is a Limp Mode?

Limp mode is a bypass way to maintain your engine efficiency or transmission for a short while. Moreover, it does not cause any damage to your car’s engine. You should not drive your car unnecessarily when you activate a limp mode.

You can also disable limp mode if you restart your car, disconnect the battery and check the fluid levels. In this respect, an OBD scanner is usually used. You must prefer those routes for travelling which have comparatively less distance. 

Why Do We Need to Activate Limp Mode?

Users activate limp mode when their cars’ transmission control unit (TCU) or engine control unit (ECU) detects an issue. A major objective behind activating limp mode in your car is to provide enough power so you can easily reach your nearby repair shop or home. It gives an advantage of not causing any damage to your car’s engine or transmission. 

Considerably Low RPMs: 

Your car’s engine will be limited to less than 300 RPMs, if you activate limp mode. 

Speed Limitations: 

when you activate limp mode, your car’s speed will automatically be limited between 30 and 40 MPH. 

Speed Limitations of a car

Examine Engine Light: 

An engine’s light of a car will start lighting up or flashing if you activate limp mode while driving. 

Non-capable of shifting into high gear:

Some expensive cars have an advanced feature when it comes to limp mode. You cannot pass the third gear when limp mode is activated. On the other hand, other cars do not have this facility in their specifications. 

Weak Performance:

It may feel sluggish when it comes to acceleration. Your engine can misfire or the car might feel jittery too. 

Non-Availability of Air Conditioning: 

You will not enjoy air conditioning if your car goes into limp mode. 

How to Disable Limp Mode Permanently? A Step-By-Step Guidance

Limp mode is developed to make your car able to reach a nearby repair shop or home. It works unless you find a mechanic. There are several things through which you can disable limp mode but mostly are considered temporary fixes. Your car will go into limp mode again when the issue is genuine and serious. Your car can face genuine problems if you do not disable limp mode within a particular period of time.

How to Disable Limp Mode Permanently
  • Turn Off and Restart Your Car After a While: 

It is compulsory to turn off your car by finding a safe place. Wait for at least 5 minutes, and restart it again. However, you should observe first whether you can shift into high gear or not.

  • Examine Your transmission and Oil Fluids:

 It is essential to check your transmission and oil fluids. If these fluids are low then you can disable limp mode. 

  • Switch Off the Battery: 

Switch off the battery if limp mode is still in activation. After that, wait for at least half an hour to reset the computer of the car. If your car is still running with limp mode then reconnect the battery and immediately shift gears. 

  • Use of OBD2 Scanner for Errors:

 You can scan a car in codes by using an OBD2 scanner. These codes will lead you to find the actual diagnosis of your car. Furthermore, you can remove the codes to disable limp mode. 

  • Drive Your Car to a Repair Shop: 

It is good enough if you are capable of fixing your car yourself. Otherwise, you must approach a professional and skillful mechanic to have it examined. Most importantly, if you wait longer then it will become more expensive. 

What Factors Make Your Car Go into Limp Mode?

There are some specific malfunctions which make your car go into a limp mode. Here are some of the factors as follow:

Low Level of Fluids: 

It is a major cause that activates limp mode into your car. Because low-fluids level causes low pressure and prevents your transmission from operating proactively. 

Reliable Sensors:

There are various sensors attached to the engine and transmission of a car. These sensors display the errors in your car’s computer. Therefore, you will activate limp mode immediately by the inappropriate signals sent by sensors. 

Weak Parts: 

Limp mode can be activated by poor parts of the car as well. These include poor spark plugs, failed fueled injectors, coil packs and emissions equipment which is tampered or missing. 

Badly Damaged Wires: 

Your car can go into limp mode even with a single damaged wire. There are multiple electric wires installed in your car. These wires can be damaged badly by leaking fluids, heat or debris. So, car insurance is necessary in such cases.

Repairing the damaged wires

Failure of Transmission or Clutch:

Your car will automatically go into limp mode as a result of failing of transmission or clutch. 

Over Heating: 

Your car can go into limp mode as a result of overheating. In this regard, an ECU will impose limitations by cutting fuel supply to the cylinders. Consequently, it will allow cylinders to cool down gradually. 

Boost or Vacuum Leaks: 

A boost or vacuum leak allows air to enter the combustion chamber in significant amounts. 

Continuously Misfire or Knock: 

Misfire or knock usually does not allow your car to enter limp mode. However, if it happens consistently then it will trigger your car to activate limp mode. 

How to Prevent Your Car from Entering Limp Mode?

If you manage to prevent your car from entering limp mode, it will increase the efficiency and life of your car. Here are some of the pertinent ways in which you can prevent a car from entering limp mode, as follow:

  1. Pay attention to warning signs:

You must approach a professional mechanic if your car faces unnecessary performance problems like slow acceleration and slow gearing shift. 

  1. Check the temperature gauge of the engine consistently:

You must ensure it will not surpass 1/2.

Checking Temperature Gauge of Engine Consistently
  1. Replacement of Faculty Parts:

You must replace damaged parts immediately otherwise you will face serious issues. These damaged parts can be dirty filters, engine belts, spark plugs and electrical wires. 

  1. Check Fluids–Level: 

It is important to ensure that your car has fresh transmission or oil fluids. 


People want to know ‘’How to disable limp mode permanently’’? The answer to this question is yes. It is easy to disable limp mode permanently if we replace the damaged parts, prevent the engine from overheating and approach a professional mechanic within a specific time period. 

In addition to these, there are multiple factors involved that allow your car to enter the limp mode. These factors include low level of oil or transmission fluids, damaged parts and technical issues in electrical wires. In this respect, you can also prevent your car from unnecessary limp mode. 

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