There are 5 stored owner reports matching the lighting leading-label group for the 2006 GMC Sierra in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 5 of 5 matching reports.
Open the full vehicle complaint log (all categories)FUEL GAGE SHOWS HALF A TANK BUT I RAN OUT OF GAS. LIGHTS BLOW ALL THETIME.
REAR TAIL LIGHT ASSEMBLY (BOTH) CONNECTION TABS WHICH HOLD ASSEMBLY IN PLACE FAIL FOR NO REASON ALLOWING LIGHT ASSEMBLE TO FALL OUT. HAVE REPLACED THE REAR TAIL LIGHT ASSEMBLIES THREE TIMES. FIRST LIGHT ASSEMBLY FELL OUT AT 8 MONTHS AGE (APPROX 20,000 MILES), RETURNED TO DEALER THEY ADVISED ASSEMBLY MUST HAVE BEEN DAMAGED NO WARRANTY REPAIR. REPLACED BOTH WITH AFTER-MARKET ASSEMBLIES, 18 MONTHS LATER REAR LIGHT ASSEMBLY CONNECTION TABS FAILED. REPLACED WITH DEALER SUPPLIED PARTS (APPROX 75,000 MILES). NOW ABOUT 18 MONTHS LATER REAR LIGHT ASSEMBLY IS FAILING AGAIN (109,000 MILES). POSSIBLE CAUSE IS THAT PLASTIC TABS DO NOT SECURE LIGHT ASSEMBLE IN PLACE, ALLOWING NORMAL USE AND VIBRATION TO CAUSE CONNECTION TAB TO FAIL. *TR
RIGHT REAR TAIL LIGHT ASSEMBLY FELL OFF - FOR NO REASON. *TR
2006 GMC SIERRA 1500 CREW CAB. ONLY A YEAR OLD AND WITH LESS THAN 15,000 MILES, THE RIGHT TAIL LIGHT ASSEMBLY FELL OFF. THERE HAD BEEN NO ACCIDENT, IMPACT OR ABUSE. THE CAUSE WAS THE BREAKING OF THE TWO PLASTIC THREADS IN THE TAILLIGHT ASSEMBLY. THESE FLIMSY, WEAK, THREADED PARTS ARE ALL THAT HOLD THE TAILLIGHT ON AND ARE CLEARLY INADEQUATE FOR THE LOAD. THIS SHOULD NOT BE A WEAR AND TEAR ITEM; IT IS A DESIGN DEFECT. THERE SHOULD BE SOME METAL HOLDING THE SCREWS, NOT THIN PLASTIC. *TR
DT*: THE CONTACT STATED WHILE TRAVELING 50 MPH, A BUMPING NOISE WAS HEARD COMING FROM THE REAR OF THE VEHICLE. WHEN THE CONTACT LOOKED IN THE REARVIEW MIRROR, NOTHING WAS NOTICED. WHEN THE VEHICLE WAS PARKED, THE CONTACT FOUND THE DRIVER SIDE TAILLIGHT ASSEMBLY WAS HANGING BY THE WIRES. THE DEALERSHIP DETERMINED THE TABS HOLDING THE TAILLIGHT FRACTURED AND ORDERED A NEW TAILLIGHT ASSEMBLY.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.