P0736 2018 GMC Sierra Code - Transmission Reverse Ratio Incorrect
Quick Answer
The P0736 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates that the transmission reverse gear ratio is incorrect. Common causes include Low transmission fluid levels, Faulty transmission solenoid, Malfunctioning transmission control module. 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
- P0736 2018 GMC Sierra indicates Transmission Reverse Ratio Incorrect.
- Common causes
- Common causes include Low transmission fluid levels, Faulty transmission solenoid, Malfunctioning transmission control module.
- 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 P0736 2018 GMC Sierra Description
The P0736 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates that the transmission reverse gear ratio is incorrect. This means that the transmission is not shifting into reverse properly, which can lead to difficulty in backing up the vehicle. The reverse gear ratio is crucial for the vehicle to move backward smoothly and efficiently. When this ratio is incorrect, it can cause issues with the vehicle's overall performance and drivability.
Common Causes of P0736 2018 GMC Sierra
- Low transmission fluid levels
- Faulty transmission solenoid
- Malfunctioning transmission control module
- Issues with the valve body
- Electrical problems within the transmission system
Symptoms of P0736 2018 GMC Sierra
- Difficulty shifting into reverse gear
- Delayed engagement when shifting into reverse
- Harsh or jerky movement when backing up
- Transmission slipping while in reverse
- Illumination of the Check Engine Light
How to Fix P0736 2018 GMC Sierra
- Check and top off transmission fluid levels
- Inspect and replace the transmission solenoid if faulty
- Test and potentially replace the transmission control module
- Inspect and clean the valve body or replace if necessary
- Conduct a thorough diagnostic of the electrical system in the transmission
Cost to Fix P0736 2018 GMC Sierra
The cost of repairing a transmission reverse ratio incorrect issue can vary depending on the specific cause of the problem and the extent of the repairs needed. On average, the repair costs for this issue can range from $200 to $800, including parts and labor. However, it's important to note that the actual cost can be higher or lower based on factors such as the location of the repair shop, the make and model of the vehicle, and the type of engine. Additionally, diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging between $80 and $150. It is recommended to obtain quotes from local repair shops to get a more accurate estimate for the repair.
Tech Notes for P0736 2018 GMC Sierra
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