U0248 Buick Code - Lost Communication With Remote Accessory Module
Quick Answer
Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Remote Accessory Module, Remote Accessory Module harness is open or shorted, Remote Accessory Module circuit poor electrical connection. 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
- U0248 Buick indicates Lost Communication With Remote Accessory Module.
- Common causes
- Common causes include Faulty Remote Accessory Module, Remote Accessory Module harness is open or shorted, Remote Accessory Module circuit poor electrical connection.
- 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.
Code U0248 Buick Description
What are the Possible Causes of the DTC U0248 Buick?
- Faulty Remote Accessory Module
- Remote Accessory Module harness is open or shorted
- Remote Accessory Module circuit poor electrical connection
How to Fix the DTC U0248 Buick?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the U0248 Buick code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the U0248 Buick code?
Need more information on how to fix the U0248 Buick code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the U0248 Buick code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about U0248 Buick Code
1. What does OBDII code U0248 mean on a Buick?
U0248 indicates a loss of communication between the vehicle's primary control modules and the Remote Accessory Module (RAM).
2. What are common symptoms of code U0248 on a Buick?
Symptoms may include malfunctioning remote features (e.g., keyless entry or remote start), dashboard warning lights, or no response from certain accessory systems.
3. What causes code U0248 to appear on a Buick?
Common causes include a faulty Remote Accessory Module, damaged wiring or connectors, a blown fuse, or an issue with the vehicle’s CAN (Controller Area Network) communication.
4. Can a weak battery cause code U0248?
Yes, a weak or failing battery can disrupt communication between modules and trigger U0248.
5. How do I diagnose the U0248 code on my Buick?
Start by checking the fuses, inspecting the wiring and connectors for damage, and testing the Remote Accessory Module for proper operation.
6. Can I still drive my Buick with code U0248?
Yes, the vehicle may still be drivable, but certain remote or accessory functions may not work properly, affecting convenience features.
7. How do I fix code U0248 on a Buick?
Repairs may include replacing a damaged Remote Accessory Module, repairing or replacing faulty wiring, or updating the vehicle’s software.
8. Is replacing the Remote Accessory Module the only solution for code U0248?
No, sometimes the issue can be resolved by repairing a wiring fault, clearing the code, or performing a software update.
9. Can clearing the code U0248 fix the problem?
Clearing the code may temporarily clear the warning, but if the underlying issue persists, the code will return.
10. How much does it cost to fix code U0248 on a Buick?
Repair costs vary depending on the issue but may range from $100 for minor wiring repairs to $500 or more for module replacement.
Discuss the causes and fixes for U0248 Buick OBDII Code
Code U0248 Buick comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
