This informational bulletin provides information on removing paint stains on the under side of protective shipping film
full bulletin at NHTSA ↗2012 GMC Sierra body problems
severe 6 complaints filed with NHTSA · avg repair $1,500 · see body across all vehicles →
Complaints
6
Recalls
0
Avg fix
$1,500
1fire
When does it fail?
Of the 6 body complaints filed for the 2012 GMC Sierra, here's the actual mileage breakdown — failures cluster heaviest at 50,000-75,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
No new NHTSA body complaint has been filed on this vehicle in over 11 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering body on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This Preliminary Information communication provides information to the technician about the roof beacon switch. The roof beacon switch will be left disconnected from the assembly plant. When a roof beacon light is added technician will need to plug the harness into the switch.
full bulletin at NHTSA ↗This Preliminary Information communication provides information to the technician about vehicles that have Diagnostic Trouble Code B2555 may be found in a Driver and/or Passenger Door Module. Technician should ignore the Diagnostic Trouble Code if set in a DDM and/or PDM on a vehicles not equipped with front door panel courtesy lights.
full bulletin at NHTSA ↗This Preliminary Information communication provides information to the technician about vehicles that have tailgate may not lower slowly like the New 2014 Silverado 1500 / Sierra 1500 models. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
full bulletin at NHTSA ↗GENERAL MOTORS: THE WINDOWS, FRONT AND REAR, WOULD BIND, POOR FIT, MISALIGNMENT, MAKES RATTLE OR SQUEAKING NOISES, MOVES SLOWLY AND IS INOPERATIVE. MODEL 2008-2014 VEHICLES AND TRUCKS.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 3 most recent
Tl* the contact owns a 2012 GMC sierra denali. The contact stated that the dashboard cracked. The contact mentioned that a rattling sound emitted from the dashboard. The vehicle was taken to a dealer. The technician diagnosed that the dashboard needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the issue. The approximate failure mileage was 70,000. Updated…
Tl* the contact owns a 2012 GMC sierra. The contact stated that the passenger side dashboard was cracked above the air bag housing. The vehicle was taken to the dealer where it was diagnosed that the dashboard needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 57,000.
Frame coating is peeling off the back of the frame and in other areas. Excessive rust for a vehicle that is 3 years old in a temperate climate. Only appears to be affecting frame covered with waxy undercoat. Very little rust and no peeling on areas that have other paints/coatings.
Had body trouble with your 2012 GMC Sierra?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the body problem on the 2012 GMC Sierra?
It's a meaningful issue. 6 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $1,500.
At what mileage does the body typically fail?
Based on the 6 complaints filed, body issues most often appear around 47,075 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $1,500 for body repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to body?
No active recalls currently cover body issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2012/GMC/Sierra.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.