Engine-CodesChevrolet – P0736 2018 Chevrolet Silverado

P0736 2018 Chevrolet Silverado Code - Transmission Reverse Ratio Incorrect

Quick Answer

The P0736 code indicates that the transmission is not shifting into reverse properly. Common causes include Faulty transmission solenoid, Low transmission fluid level or poor-quality fluid, Transmission control module malfunction. 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 Chevrolet Silverado indicates Transmission Reverse Ratio Incorrect.
Common causes
Common causes include Faulty transmission solenoid, Low transmission fluid level or poor-quality fluid, Transmission control module malfunction.
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.
Table of contents Created and updated by William Orellana on Aug 19, 2024
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Code P0736 2018 Chevrolet Silverado Description

The P0736 code indicates that the transmission is not shifting into reverse properly. This can result in difficulty or inability to engage reverse gear, harsh shifting, slipping, or delayed engagement. The incorrect reverse ratio can lead to poor vehicle performance, reduced fuel efficiency, and potential damage to the transmission over time if not addressed promptly. The issue may stem from faulty sensors, solenoids, wiring, or mechanical components within the transmission system.

OBDII Code P0736 2018 Chevrolet Silverado - Transmission Reverse Ratio Incorrect
P0736 2018 Chevrolet Silverado Code - Transmission Reverse Ratio Incorrect

Common Causes of P0736 2018 Chevrolet Silverado

  1. Faulty transmission solenoid
  2. Low transmission fluid level or poor-quality fluid
  3. Transmission control module malfunction
  4. Wiring issues or electrical connection problems
  5. Mechanical issues within the transmission, such as worn gears or clutches

Symptoms of P0736 2018 Chevrolet Silverado

  1. Difficulty engaging reverse gear
  2. Harsh shifting when attempting to reverse
  3. Slipping or delayed engagement in reverse
  4. Unusual noises coming from the transmission
  5. Illuminated Check Engine Light

How to Fix P0736 2018 Chevrolet Silverado

  1. Begin by checking the transmission fluid level and quality, topping off or replacing if necessary.
  2. Perform a diagnostic scan to identify the specific cause of the incorrect reverse ratio.
  3. Inspect and test the transmission solenoids, sensors, and wiring for faults or damage.
  4. Replace any faulty components identified during the diagnostic process.
  5. Clear the trouble codes, reset the transmission control module, and road test the vehicle to ensure proper operation.

Cost to Fix P0736 2018 Chevrolet Silverado

The cost of repairing a transmission reverse ratio issue can vary depending on the specific cause and the extent of the damage. On average, the repair costs for this issue can range from $200 to $1000 or more, including parts and labor. It is recommended to consult with a qualified mechanic or transmission specialist for a more accurate estimate based on the individual circumstances of the vehicle. Labor rates at auto repair shops can vary, so it's advisable to inquire about rates in your area before proceeding with the repair.

Tech Notes for P0736 2018 Chevrolet Silverado

Incorrect ratio Diagnostic Trouble Code (DTC) may indicate a component condition with piston seals, clutch plates, or solenoids or it may be caused by a faulty turbine or output speed sensor signal.

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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.

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