AutoCodes – GMC – P1762 2016 GMC Sierra

P1762 2016 GMC Sierra Code - Transmission Mode Switch Signal Message

Quick Answer

The Body Control Module (BCM) is constantly sending the Engine Control Module (ECM) and Transmission Control Module (TCM) serial data messages with information regarding transmission mode switch activation. Common causes include Faulty Transmission Control Module (TCM), Faulty Body Control Module (BCM). 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: P1762 2016 GMC Sierra indicates Transmission Mode Switch Signal Message.
Common causes: Common causes include Faulty Transmission Control Module (TCM), Faulty Body Control Module (BCM).
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.

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Code Popularity 160

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 29, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1762 2016 GMC Sierra Description

The Body Control Module (BCM) is constantly sending the Engine Control Module (ECM) and Transmission Control Module (TCM) serial data messages with information regarding transmission mode switch activation. The TCM sets this code when it detects a discrepancy in the structure of the message causing the signal message integrity to be questioned. The Diagnostic Trouble Code (DTC) is set when the TCM detects an error in the rolling count value that does not match with the BCM.

OBDII Code P1762 2016 GMC Sierra - Transmission Mode Switch Signal Message - AutoCodes.com — P1762 2016 GMC Sierra Code - Transmission Mode Switch Signal Message

What does this mean?

What are the Possible Causes of the DTC P1762 2016 GMC Sierra?

Faulty Transmission Control Module (TCM)
Faulty Body Control Module (BCM)

How to Fix the DTC P1762 2016 GMC Sierra?

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1762 2016 GMC Sierra 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 P1762 2016 GMC Sierra code?

Need more information on how to fix the P1762 2016 GMC Sierra code? Get Access to Factory Service Manuals

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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 P1762 2016 GMC Sierra Code

1. What does OBDII code P1762 on a 2016 GMC Sierra indicate?

The code P1762 in a 2016 GMC Sierra relates to the Transmission Mode Switch Signal Message.

2. What are some common symptoms of OBDII code P1762 in a 2016 GMC Sierra?

Common symptoms of code P1762 may include issues with shifting gears, transmission slippage, and the vehicle going into "limp mode."

3. What are the potential causes of OBDII code P1762 in a 2016 GMC Sierra?

The code P1762 can be triggered by a faulty transmission mode switch, wiring issues, or a malfunction in the transmission control module.

4. How can I diagnose OBDII code P1762 on my 2016 GMC Sierra?

To diagnose code P1762, you can use an OBDII scanner to read the code, inspect the transmission mode switch and its wiring, and check for any visible signs of damage.

5. How can I repair OBDII code P1762 in my 2016 GMC Sierra?

Repairing code P1762 may involve replacing the transmission mode switch, repairing any damaged wiring, or reprogramming the transmission control module.

6. Can I still drive my 2016 GMC Sierra with OBDII code P1762?

It is not recommended to drive your vehicle with code P1762 as it can lead to further transmission problems and potential safety hazards.

7. How much does it typically cost to repair OBDII code P1762 on a 2016 GMC Sierra?

The cost of repairing code P1762 can vary depending on the exact cause of the issue, but it may range from a few hundred to a thousand dollars.

8. Will resetting the OBDII code P1762 on my 2016 GMC Sierra make it go away permanently?

Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear.

9. Can a DIY enthusiast fix OBDII code P1762 in a 2016 GMC Sierra?

Depending on your skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair code P1762, but it is recommended to seek professional help for complex transmission issues.

10. Is OBDII code P1762 a common problem in 2016 GMC Sierra vehicles?

While not extremely common, code P1762 can occur in 2016 GMC Sierra trucks, especially in cases where there are issues with the transmission mode switch or related components.