P0735 2015 GMC Sierra Code - Transmission 5th Gear Ratio Incorrect
Quick Answer
The P0735 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates that the transmission's fifth gear ratio is incorrect. Common causes include Low transmission fluid levels or dirty fluid, 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
- P0735 2015 GMC Sierra indicates Transmission 5th Gear Ratio Incorrect.
- Common causes
- Common causes include Low transmission fluid levels or dirty fluid, 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 P0735 2015 GMC Sierra Description
The P0735 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates that the transmission's fifth gear ratio is incorrect. This means that the transmission is not shifting into fifth gear properly, which can lead to a variety of performance issues. The transmission is responsible for transferring power from the engine to the wheels, and when the gear ratio is incorrect, it can result in poor fuel efficiency, reduced acceleration, and overall diminished driving experience.
Common Causes of P0735 2015 GMC Sierra
- Low transmission fluid levels or dirty fluid
- Faulty transmission solenoid
- Malfunctioning transmission control module
- Mechanical issues within the transmission, such as worn gears or bearings
- Electrical issues, such as wiring harness damage or sensor failure
Symptoms of P0735 2015 GMC Sierra
- Delayed or harsh shifting between gears
- Engine revving higher than usual at highway speeds
- Decreased fuel efficiency
- Illumination of the Check Engine Light
- Transmission slipping or jerking during acceleration
How to Fix P0735 2015 GMC Sierra
- Begin by checking the transmission fluid level and condition. If low, top off the fluid and inspect for any leaks.
- Perform a diagnostic scan to retrieve the specific error codes and pinpoint the exact cause of the incorrect gear ratio.
- Inspect the transmission solenoid and replace if faulty.
- Test the transmission control module for proper functioning and replace if necessary.
- If mechanical issues are suspected, such as worn gears, the transmission may need to be rebuilt or replaced.
Cost to Fix P0735 2015 GMC Sierra
The cost of repairing a P0735 code on a 2015 GMC Sierra can vary depending on the specific cause of the issue. On average, the repair costs can range from $200 to $1500, including parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary, with hourly rates typically ranging between $80 and $150. Factors such as location, vehicle make and model, and engine type can also impact the final repair cost. For a more accurate estimate, it's recommended to consult with a trusted mechanic or repair shop.
Tech Notes for P0735 2015 GMC Sierra
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