| 
	 2015 GMC Sierra 1500 5.3L Left Turn Signal  
		
		This is a work truck, fairly clean with no accessories. Verified Customer Complaint : REAR Left Turn Signal out , Left Turn Signal Bulb Out [...] FRONT Turn signal IS working. Check and installed 2 new Rear Turn Signal Bulbs. Still Not working. Check C... 
                        
                            FIX posted 7/5/2025
                             
                 
                            
                    iATN Members:  
        Login to view full TechHelp request Auto Repair Pros: Join iATN to read this TechHelp request Vehicle Owners: Find a nearby iATN member to repair your vehicle 8 Replies Received (View Replies)8 Replies Received (Hide Replies)
       | 
		  
		      
           Message Closed w/FIX 
	   
	   
	   
	    | 
| VIN | 1GTN1TEC7F | 
| Engine | 5.3 L / 8 cyl / FLEX | 
| Trans | 6-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Affected | Left Turn Signal | 
| Conditions | MAP Lights Flash. Left Turn Bulb Out Warning Messa | 
Message Closed w/FIX
            
            
 Vehicle Data
                2015 GMC Sierra 1500
| VIN | 1GTN1TEC7F | 
| Engine | 5.3 L / 8 cyl / FLEX | 
| Trans | 6-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Affected | Left Turn Signal | 
| Conditions | MAP Lights Flash. Left Turn Bulb Out Warning Messa | 
                            
8 Replies Received
          8 Replies Received
          
  Related Documents & Media