P0735 2017 GMC Sierra Code - Transmission 5th Gear Ratio Incorrect
Quick Answer
The P0735 diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates that the transmission's fifth gear ratio is incorrect. Common causes include Worn or damaged transmission gears, Faulty transmission solenoid, Malfunctioning transmission speed sensor. 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 2017 GMC Sierra indicates Transmission 5th Gear Ratio Incorrect.
- Common causes
- Common causes include Worn or damaged transmission gears, Faulty transmission solenoid, Malfunctioning transmission speed sensor.
- 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 2017 GMC Sierra Description
The P0735 diagnostic trouble code (DTC) for a 2017 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 control module (TCM) monitors the gear ratios to ensure smooth and efficient operation of the transmission. When the TCM detects that the actual gear ratio in fifth gear does not match the expected ratio, it triggers the P0735 code.
Common Causes of P0735 2017 GMC Sierra
- Worn or damaged transmission gears
- Faulty transmission solenoid
- Malfunctioning transmission speed sensor
- Low transmission fluid levels
- Electrical issues within the transmission control module
Symptoms of P0735 2017 GMC Sierra
- Slipping or delayed shifting in fifth gear
- Engine revving higher than usual at highway speeds
- Decreased fuel efficiency
- Illumination of the Check Engine Light
- Harsh or erratic shifting patterns
How to Fix P0735 2017 GMC Sierra
- Perform a thorough diagnostic scan to confirm the P0735 code and identify the specific cause of the issue.
- Inspect the transmission gears for wear or damage and replace as necessary.
- Check and replace the transmission solenoid if faulty.
- Test and replace the transmission speed sensor if it is not functioning correctly.
- Ensure proper transmission fluid levels and quality, and perform a transmission fluid flush if needed.
Cost to Fix P0735 2017 GMC Sierra
The cost of repairing a P0735 code on a 2017 GMC Sierra can vary depending on the specific cause of the issue and the labor rates in your area. On average, the repair costs for this type of transmission issue can range from $500 to $1500, including parts and labor. It is recommended to consult with a qualified mechanic or transmission specialist to get an accurate estimate based on your vehicle's specific needs. Keep in mind that labor rates can vary significantly, so it's advisable to shop around and compare prices from different repair shops.
Tech Notes for P0735 2017 GMC Sierra
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