This preliminary informational bulletin contains recommendations of what needs to be done to swap/install camper outside rearview mirrors on a vehicle not originally equipped with them.
full bulletin at NHTSA ↗2015 GMC Sierra visibility problems
severe 14 complaints filed with NHTSA · avg repair $350 · see visibility across all vehicles →
Failure mileage
Complaints
14
Recalls
0
Avg fix
$350
1crash
When does it fail?
Of the 14 visibility complaints filed for the 2015 GMC Sierra, here's the actual mileage breakdown — failures cluster heaviest at 75,000-100,000 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
Of the 16 model years of GMC Sierra we track for visibility problems, this one carries the most owner complaints on file — 14.
No new NHTSA visibility complaint has been filed on this vehicle in over 5 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 visibility 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.
GENERAL MOTORS 2015 CHEVROLET SILVERADO, GMC SIERRA. DUE TO SURFACE FLAW, CERTAIN VEHICLES, WITH HEATED BACK WINDOW GLASS, IS STRUCTURALLY WEAKENED AND SHATTER. REAR WINDOWS HAVE TO BE REPLACE.
full bulletin at NHTSA ↗THIS TSB CONTAINS AN OWNER NOTIFICATION LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. GENERAL MOTORS 2015 SILVERADO GMC SIERRA EQUIPPED WITH RPO C49 ELECTRIC REAR WINDOW DEFOGGER. DUE TO SURFACE FLAW, HEATED BACK WINDOW GLASS IS STRUCTURALLY WEAKENED.
full bulletin at NHTSA ↗THIS TSB CONTAINS AN OWNER NOTIFICATION LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. GENERAL MOTORS 2015 CHEVROLET SILVERADO, SIERRA ; CERTAIN LIGHT DUTY 2015 VEHICLES BUILT WITH RPO C49 FIXED-WINDOW HEATED GLASS MAY HAVE A STRUCTURALLY WEAKENED GLASS DUE TO INTERNAL FLAW.
full bulletin at NHTSA ↗THIS TSB CONTAINS AN OWNER NOTIFICATION LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. GENERAL MOTORS 2015 CHEVROLET SILVERADO, SIERRA EQUIPPED WITH RPO C49 ELECTRIC REAR WINDOW DEFOGGER. THIS IS A REVISED COPY OF BULLETIN 14815A.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners of 2015 GMC Sierras describe four distinct visibility-related issues. The most common complaint involves rear windows—both fixed and power-sliding units—spontaneously shattering or cracking without external impact. These failures often occur during or shortly after defroster operation in cold weather, producing loud pops or bangs. In multiple cases, glass exploded while the vehicle was parked or moving at highway speeds, with one owner reporting white smoke from the rear window base before failure and another describing a rifle-shot sound during implode. The failures started showing up as early as 30,000 miles and continued into six figures of mileage.
The second major issue is air conditioning condenser failure. Owners report condensers leaking or fracturing in the 44,000 to 55,000-mile range, causing total AC failure. Dealers contacted by owners stated no service bulletins or recalls exist for this defect, though one owner noted GM faces proposed class-action lawsuits in multiple states regarding AC problems.
Headlamp visibility complaints focus on low-beam brightness being too dim for safe night driving on rural roads, with one owner hitting a second deer because visibility was inadequate.
One owner reported a front windshield cracking spontaneously with no impact while driving at 65 mph on a truck less than two months old.
Same GMC Sierra visibility reports on nearby years: 2014
Failure modes owners describe
Rear window spontaneous failure and explosion
Rear windows (both fixed and sliding power windows) shattering, cracking, or exploding spontaneously, often when defroster is activated or during temperature extremes. No external impact reported.
When: 30,000–163,353 miles; most common in cold weather conditions or shortly after defroster activation
Symptoms owners cite: Loud popping or banging sound from rear window; Baseball-sized hole or complete shattering; Glass exploding while closing door; Rear window imploding at highway speeds; White smoke emitting from base of driver-side rear window
Repairs/costs cited: Owners replaced windshield at independent mechanic; some repairs done at dealer; one owner reported the vehicle was not repaired
Recalls/TSBs owners mention: Dealer stated no recalls present; manufacturer referred contacts to dealers or NHTSA; one case was opened but no resolution noted
Air conditioning condenser failure
Air conditioning condenser leaking or fracturing, causing total loss of AC function. No service bulletins or recalls identified by dealers.
When: 44,000–55,000 miles; AC failure noted shortly after warranty expiration in one case
Symptoms owners cite: Hot air emerging from AC unit while activated; AC failed to function; Loss of cooling
Repairs/costs cited: Condenser replaced at independent mechanic; one vehicle not repaired; cost not specified
Recalls/TSBs owners mention: Dealers informed customers no recalls or service bulletins applied; manufacturer stated VIN not included in recall; one owner reported GM is subject of proposed class-action lawsuits regarding this defect
Headlamp visibility insufficient
Low-beam headlights dimly illuminated, providing inadequate visibility for night driving on rural roads.
When: 1,200 miles
Symptoms owners cite: Headlamps not illuminating properly; Insufficient visibility to view road; Dim low-beam brightness; Poor side visibility
Repairs/costs cited: Dealer did not diagnose or repair
Recalls/TSBs owners mention: Manufacturer made aware; no response documented
Front windshield spontaneous cracking
Front windshield cracking spontaneously under normal driving with no external impact reported.
When: Less than 2 months of ownership; at 65 mph
Symptoms owners cite: Huge crack from top driver-side corner to bottom center of windshield; No impact or foreign object strike
Repairs/costs cited: Not specified in narrative
Synthesized from 14 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 1 most recent
Used the remote start to warm the truck up. Got in and was leaving my driveway and the rear window exploded. Read defrost was on since we received 6+ inches on snow today.
Had visibility trouble with your 2015 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 visibility problem on the 2015 GMC Sierra?
It's a meaningful issue. 14 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $350.
At what mileage does the visibility typically fail?
Across the 13 complaints that reported odometer mileage, most visibility failures cluster between 30,000 and 55,911 miles, with the median around 44,000. A quarter of owners report trouble before 30,000; a quarter make it past 55,911. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $350 for visibility 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 visibility?
No active recalls currently cover visibility 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/2015/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.