U135A GMC Code - Lost Communication With Shift To Park Range Actuator
Quick Answer
The U135A GMC code indicates that there is a communication problem between the vehicle's control module and the Shift To Park Range Actuator. Common causes include Faulty wiring connections, Malfunctioning Shift To Park Range Actuator, Issues with the 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
- U135A GMC indicates Lost Communication With Shift To Park Range Actuator.
- Common causes
- Common causes include Faulty wiring connections, Malfunctioning Shift To Park Range Actuator, Issues with the 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 U135A GMC Description
The U135A GMC code indicates that there is a communication problem between the vehicle's control module and the Shift To Park Range Actuator. The Shift To Park Range Actuator is responsible for ensuring that the vehicle is in the correct gear (usually park) before the ignition can be turned off. When communication is lost with this actuator, it can lead to issues with the vehicle's ability to recognize when it is in park, potentially causing safety concerns. This can result in the vehicle not starting, the key getting stuck in the ignition, or the vehicle rolling away when parked.
Common Causes of U135A GMC
- Faulty wiring connections
- Malfunctioning Shift To Park Range Actuator
- Issues with the control module
- Corrosion or damage to electrical connectors
- Software glitches in the vehicle's system
Symptoms of U135A GMC
- Inability to start the vehicle
- Key getting stuck in the ignition
- Vehicle rolling away when parked
- Warning message on the dashboard indicating a gear shift issue
How to Fix U135A GMC
- Begin by inspecting the wiring connections and electrical connectors for any signs of damage or corrosion.
- Test the Shift To Park Range Actuator to determine if it is functioning properly.
- Check the control module for any error codes and address any issues found.
- Clear the diagnostic trouble codes and reset the system to see if the issue persists.
- If the problem persists, consider replacing the Shift To Park Range Actuator or seeking professional help for further diagnosis and repair.
Cost to Fix U135A GMC
The typical repair costs for addressing a U135A GMC code can range from $200 to $500, including parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It's advisable to check local rates for a more precise estimate.
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Frequently Asked Questions about U135A GMC Code
What does OBDII code U135A mean on a GMC?
U135A indicates a lost communication issue with the Shift to Park Range Actuator, meaning the vehicle's control module cannot communicate with the component responsible for detecting the "Park" position.
What are the common symptoms of a U135A code?
Symptoms include the "Shift to Park" message on the dashboard, inability to turn off the vehicle completely, and potential battery drain if the vehicle doesn't recognize it's in Park.
What causes the U135A code to appear?
Common causes include faulty wiring or connectors, a defective Shift to Park Range Actuator, a failing Body Control Module (BCM), or software glitches in the vehicle's electronic systems.
How do I fix the U135A code on a GMC vehicle?
Repairs may involve inspecting and repairing damaged wiring or connectors, replacing the Shift to Park Range Actuator, updating the vehicle's software, or resetting the BCM.
Can a U135A code cause long-term damage if not addressed?
If left unresolved, the code can lead to battery drain due to the vehicle not shutting down properly, which could eventually damage the battery or other electrical components.
How is the U135A code diagnosed?
A technician will use an OBDII scanner to confirm the code, inspect wiring and connectors, test the Shift to Park Range Actuator, and check for updates or faults in the BCM.
Can I drive my GMC with a U135A code?
While the vehicle may still drive, ignoring the issue could lead to inconvenience when parking, potential battery drain, and possible safety concerns if the vehicle doesn't properly recognize Park.
What tools are needed to troubleshoot the U135A code?
Tools include an OBDII scanner, a multimeter for testing electrical circuits, and potentially software update tools for reprogramming the BCM.
Is the U135A code covered under warranty for GMC vehicles?
This depends on the warranty terms and the age of the vehicle. Check with your dealership to see if this issue is covered under the powertrain or bumper-to-bumper warranty.
How much does it cost to fix the U135A code?
Repair costs vary but typically range from $100 to $500, depending on whether the issue is a simple wiring repair or requires replacing the Shift to Park Range Actuator or BCM.
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