AutoCodesChevrolet – P0894 Chevrolet

P0894 Chevrolet Code - Transmission Component Slipping

Quick Answer

When the Engine Control Module (ECM) requests the neutral locked turbine feature, the Transmission Control Module (TCM) commands the 3rd, 5th, and reverse clutch and the 2-6 clutch to apply, which locks the turbine shaft. Common causes include Low transmission fluid level, Dirty or contaminated fluid, Internal transmission failure. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0894 Chevrolet indicates Transmission Component Slipping.
Common causes
Common causes include Low transmission fluid level, Dirty or contaminated fluid, Internal transmission failure.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 78,305
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Aug 04, 2022
💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0894 Chevrolet Description

When the Engine Control Module (ECM) requests the neutral locked turbine feature, the Transmission Control Module (TCM) commands the 3rd, 5th, and reverse clutch and the 2-6 clutch to apply, which locks the turbine shaft. This provides a load to the engine and reduces the engine warm-up time. The Diagnostic Trouble Code (DTC) will be set when the TCM detects turbine speed greater than 50 RPM for 3 s. This condition must occur 3 times.
OBDII Code P0894 Chevrolet - Transmission Component Slipping - AutoCodes.com
P0894 Chevrolet Code - Transmission Component Slipping

What are the Possible Causes of the DTC P0894 Chevrolet?

  • Low transmission fluid level
  • Dirty or contaminated fluid
  • Internal transmission failure
  • Faulty Transmission Control Module (TCM)
  • Transmission Control Module harness is open or shorted
  • Transmission Control Module circuit poor electrical connection

How to Fix the DTC P0894 Chevrolet?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0894 Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0894 Chevrolet code?

Need more information on how to fix the P0894 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0894 Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0894 Chevrolet Code

1. What does the OBDII code P0894 Chevrolet indicate?

The code P0894 indicates a transmission component slipping in a Chevrolet vehicle.

2. What are the common symptoms of OBDII code P0894?

Common symptoms of code P0894 may include harsh shifting, transmission slipping, decreased fuel efficiency, and the transmission going into limp mode.

3. What could cause the OBDII code P0894 to trigger in a Chevrolet?

The code P0894 is typically triggered by issues such as low transmission fluid levels, a faulty transmission solenoid, a malfunctioning torque converter, or internal transmission damage.

4. How serious is the OBDII code P0894 in a Chevrolet vehicle?

Code P0894 should be addressed promptly as it can lead to further damage to the transmission if left unresolved. It is recommended to have the issue diagnosed and repaired by a professional.

5. Can driving with the OBDII code P0894 cause further damage to the vehicle?

Continued driving with code P0894 can cause further damage to the transmission, resulting in more costly repairs down the line. It is best to address the issue as soon as possible.

6. How can I diagnose the OBDII code P0894 in my Chevrolet?

Diagnosing code P0894 typically involves using a scan tool to retrieve the trouble code and then inspecting the transmission system for any visible issues, such as leaks or damaged components.

7. What are some repair tips for fixing the OBDII code P0894 in a Chevrolet?

Repairing code P0894 may involve addressing issues such as topping up transmission fluid, replacing a faulty solenoid or torque converter, or repairing internal transmission damage as needed.

8. Is it safe to continue driving my Chevrolet with the transmission slipping?

It is not recommended to drive a vehicle with a slipping transmission, as it can lead to safety hazards and further damage to the vehicle. It is best to have the issue inspected and repaired by a professional.

9. How much does it cost to repair the OBDII code P0894 in a Chevrolet?

The cost of repairing code P0894 can vary depending on the underlying cause of the issue, the extent of the damage, and the labor rates in your area. It is best to consult with a mechanic for an accurate estimate.

10. Can I reset the OBDII code P0894 in my Chevrolet on my own?

While you can clear the trouble code with an OBDII scanner, it is important to address the root cause of the issue to prevent the code from reoccurring. It is recommended to have the vehicle inspected and repaired by a professional.

1. What are the common symptoms of OBDII code P0894 on a Chevrolet related to transmission component slipping?

- Common symptoms include harsh shifting, delayed engagement, slipping gears, and reduced fuel efficiency.

2. What are the possible causes of OBDII code P0894 indicating transmission component slipping in a Chevrolet?

- Possible causes include low transmission fluid levels, dirty or contaminated transmission fluid, internal transmission mechanical issues, or a faulty transmission control module.

3. How can I diagnose the OBDII code P0894 in my Chevrolet for transmission component slipping?

- Diagnosis involves checking the transmission fluid level and condition, conducting a visual inspection for leaks, and using a scan tool to retrieve trouble codes and monitor transmission data.

4. What repair tips can help resolve OBDII code P0894 in a Chevrolet due to transmission component slipping?

- Repair tips may include performing a transmission fluid flush and filter replacement, addressing any leaks, inspecting and repairing damaged wiring or connectors, and replacing faulty transmission components.

5. Can driving with OBDII code P0894 on a Chevrolet indicating transmission component slipping cause further damage?

- Yes, driving with this code can potentially cause further damage to the transmission components, leading to more severe issues and costly repairs.

6. Is it safe to continue driving my Chevrolet with OBDII code P0894 related to transmission component slipping?

- It is not recommended to continue driving the vehicle with this code, as it can result in poor performance, safety hazards, and additional damage to the transmission.

7. How much can I expect to pay to repair OBDII code P0894 on a Chevrolet for transmission component slipping?

- The cost of repairs can vary depending on the underlying cause, but it may range from a few hundred to over a thousand dollars, especially if internal transmission components need replacement.

8. Can I reset the OBDII code P0894 on my Chevrolet without addressing the transmission component slipping issue?

- While you can clear the code temporarily, the underlying issue causing the code will persist, and the problem with transmission slipping will likely return.

9. Are there any preventive maintenance steps I can take to avoid OBDII code P0894 related to transmission component slipping in my Chevrolet?

- Regularly servicing the transmission, checking fluid levels, and addressing any leaks or issues promptly can help prevent the occurrence of this code and transmission problems.

10. How long does it typically take to repair OBDII code P0894 on a Chevrolet due to transmission component slipping?

- The repair time can vary based on the specific cause and extent of the issue, but it may take anywhere from a few hours to a day or more to diagnose and fix the problem effectively.

1. What are the common symptoms of OBDII code P0894 in a Chevrolet related to transmission component slipping?

- Common symptoms include harsh shifting, slipping between gears, reduced fuel efficiency, and potential transmission overheating.

2. What can cause the OBDII code P0894 in a Chevrolet indicating transmission component slipping?

- The code P0894 is typically triggered by a malfunction in the transmission fluid pressure sensor, a faulty transmission control module, or issues with the transmission fluid pump.

3. How serious is the OBDII code P0894 in a Chevrolet related to transmission component slipping?

- Ignoring code P0894 can lead to further damage to the transmission system, potentially resulting in complete transmission failure if not addressed promptly.

4. How can I diagnose the OBDII code P0894 in a Chevrolet indicating transmission component slipping?

- Diagnosing code P0894 involves using an OBDII scanner to retrieve the trouble code and then conducting a thorough inspection of the transmission components, including the fluid pressure sensor and control module.

5. Can I continue driving my Chevrolet with the OBDII code P0894 related to transmission component slipping?

- It is not recommended to continue driving your Chevrolet with code P0894 present, as it can cause further damage to the transmission system and potentially lead to unsafe driving conditions.

6. What are some possible repair tips for resolving the OBDII code P0894 in a Chevrolet indicating transmission component slipping?

- Repair tips may include checking and replacing the transmission fluid, inspecting and repairing any damaged wiring or connectors, and replacing faulty transmission components as needed.

7. How much does it typically cost to repair the OBDII code P0894 in a Chevrolet related to transmission component slipping?

- The cost of repairing code P0894 can vary depending on the extent of the damage and the specific components that need to be replaced, but it can range from a few hundred to over a thousand dollars.

8. Is it possible to reset the OBDII code P0894 in a Chevrolet without repairing the underlying issue?

- While you can clear the trouble code temporarily, it is not recommended to reset code P0894 without addressing the root cause, as the issue will likely reoccur and potentially worsen over time.

9. Can regular maintenance help prevent the occurrence of the OBDII code P0894 in a Chevrolet related to transmission component slipping?

- Regular transmission fluid changes, inspections, and servicing can help prevent issues that may trigger code P0894, prolonging the lifespan of your Chevrolet's transmission system.

10. Should I seek professional help to repair the OBDII code P0894 in my Chevrolet indicating transmission component slipping?

- Due to the complexity of transmission systems and the potential severity of the issue indicated by code P0894, it is advisable to seek professional help from a qualified mechanic or dealership for an accurate diagnosis and proper repair.

Discuss the causes and fixes for P0894 Chevrolet OBDII Code

  • Hi, We had a new warrantied transmission installed when our 2003 suburban needed transmission work. The engine light came on and it was a hard shift from first to second in bad traffic conditions after only a few months. We took it to AAMCO where we had the new (or rebuilt) installation done and left it there a week. They said that they drove it and nothing was wrong. I asked if they had checked the fluid or done anything about the hard shift. They said maybe they needed to drive it longer or we needed to wait until the symptoms were worse. I picked it up and immediately took it back because the engine light came back on. They checked the code and said it was nothing new.
    Now I have to get my emissions done so I can get my tags in the state of Georgia renewed. I don't have worse symptoms yet but I don't think the emissions will pass with the engine light on. Could AAMCO have been incorrect and could damage be happening to my transmission while I "wait for it to get worse before they can know what is wrong".?? The code reads P0894 and C0237.

  • There is a possibility that the transmission can get damage while waiting for the problem to get worse, but sometimes it's difficult to find a problem is the is not consistent. If the light comes ON within 10-15 min of driving, then that should be consistent enough to find the problem.

  • I I just wanted to share a very helpful link and to let you to know that the transmission torque converter enable solenoid was the problem on my 2006 GMC Yukon Denali. Going to GM dealership was no help as they recommended to my aftermarket warranty company that I rebuild the transmission which was done and the problem still existed. The part is in the internal transmission wiring harness. here is an article below which help me solve the problem. This was for the P0894 code

    http://www.justanswer.com/g...

    I hope this helps someone else find the problem when they have hard shifting on their GMC Yukon or other similar products that GM has. Once the code is tripped it gives you a hard shift for first and second gears after long trips at high-speed's. I found this article very helpful as well as the article I am replying to here.

    I would check this part before rebuilding your transmission and if it appears off-color like the article says you probably have a cracked even though it may be small and that's what causes the code. I wish that General Motors had the bulletin when I took the car to them for diagnosis.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play