This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, and/or B3935. Technician should not replace any parts for this concern. If unable to duplicate the concern ask if the customer uses any Radio Frequency Identification Devices when the concern is present. Dealer should also direct their customers to the appropriate section in the Owner manuals that references that the device complies.
full bulletin at NHTSA ↗2008 GMC Acadia airbags problems
severe 110 complaints filed with NHTSA · avg repair $1,100 · see airbags across all vehicles →
Failure mileage
Complaints
110
Recalls
0
Avg fix
$1,100
9crashes
8injuries
What stands out
Owners have filed 110 airbags complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
Among the 14 model years of GMC Acadia in our records for airbags problems, this one ranks #3 by owner-complaint volume.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering airbags 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 technical bulletin provides a procedure to complete a terminal replacement or connector re connection to correct a condition of Diagnostic Information for Supplemental Inflatable Restraint (SIR) System, Intermittent AIR BAG Indicator/Lamp Illuminated with DTC(s) B0012, B0013, B0015, B0016, B0019, B0020, B0022, B0023, B0026, B0033, B0040, B0042 or B0044 Set (Inspect and Replace Connector Position Assurance (CPA) Retainer)
full bulletin at NHTSA ↗This informational bulletin provides Information on Passenger Presence Sensing System (PPS or PSS) Concerns with Custom Upholstery, Accessory Seat Heaters or Other Comfort Enhancing Devices
full bulletin at NHTSA ↗15536 - SPECIAL COVERAGE. CERTAIN 2008 2013 BUICK ENCLAVE, 2008-2013 GMC ACADIA, 2008-2010 SATURN OUTLOOK, AND 2009-2013 CHEVROLET TRAVERSE VEHICLES WERE RECALLED TO ADDRESS CORROSION AND/OR LOOSE CRIMPS IN THE DRIVER AND PASSENGER-SEAT MOUNTED SIDE-IMPACT AIRBAG (SIAB) WIRING-HARNESS CONNECTORS, WHICH COULD CAUSE AN INCREASE IN RESISTANCE THAT MAY DISABLE THE SIAB, FRONT-CENTER AIRBAG, IF EQUIPPED, AND SEAT-BELT PRETENSIONERS. GM HAS RECEIVED REPORTS THAT, IN SOME CASES, THE REQUIRED REPAIR MAY HAVE BEEN INCORRECTLY PERFORMED BY THE DEALER SERVICE TECHNICIAN. THE GM RECALL NUMBER WAS N14030 (GFPE NUMBER N-140030) NHTSA RECALL 14V118. DEALERS ARE TO REMOVE THE SECTION OF THE WIRE WITH THE
full bulletin at NHTSA ↗BUICK/GMC/SATURN/CHEVROLET: TSB CONTAINS AN OWNER'S NOTIFICATION LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. SOME VEHICLES ARE EXPERIENCING, ON DRIVER AND PASSENGER SEAT MOUNTED SIDE IMPACT AIRBAG (SIAB) WIRING HARNESS CONNECTORS, LOOSE OR CORRODED CRIMPS, THAT IS CAUSING RESISTANCE THAT CAN DISABLE FRONT CENTER AIRBAG AND SEAT BELT PRETENSIONERS. MODEL 2008-13 ENCLAVE, OUTLOOK, TRAVERSE, ACADIA.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners report two major patterns in the 2008 Acadia airbag system. First, the passenger presence sensor (PPS) module frequently fails to detect whether the seat is occupied, causing the airbag to show as "off" or cycling on and off at random. One owner's teenage son could sit in the seat, and the light would never illuminate; a dealership employee in the same position also triggered nothing. Adults weigh 125–180 lbs and still see the light toggle unpredictably. The service airbag light comes on during gentle acceleration, bumps, or even passenger movement. Repair costs run $600–$1,300 for sensor or module replacement, and owners report the same failure recurring within days or weeks of repair.
Second, roof leaks flood the interior with water that pools in floor boards (8+ gallons reported) and saturates the battery and airbag electrical areas. Water intrusion has triggered unintended side curtain deployments while vehicles sat stationary in garages—loud explosions with no collision. After GM performed recall repairs for harness corrosion, dealers then charged owners for separate passenger sensor failures, and some vehicles didn't qualify for recall coverage despite showing identical symptoms. Owners say they cannot get GM to cover the cost and feel forced to choose between paying $900–$1,300 or driving unsafe vehicles.
Same GMC Acadia airbags reports on nearby years: 2007 · 2009 · 2010 · 2011
Failure modes owners describe
Intermittent Passenger Airbag Sensor/Presence Detection System (PPS) Malfunction
Passenger presence sensor intermittently fails to detect an occupied seat or incorrectly signals the airbag as off when an adult is seated. The sensor registers lower-weight or smaller occupants as empty seats, disabling the airbag. Light toggles on and off unpredictably while driving or stationary.
When: Symptoms typically appear early (as soon as 1,500–4,000 miles) or within months of ownership; some report failure after 60,000+ miles.
Symptoms owners cite: Passenger airbag light intermittently illuminates or stays off when occupied; Service airbag message appears on dashboard; Airbag registers as 'off' for passengers under ~150 lbs despite exceeding manufacturer weight threshold; Intermittent illumination resolves when passenger exits or re-enters, then recurs; Light may toggle on/off during acceleration, braking, or over bumps
Codes mentioned: Passenger presence sensor short circuits, Passenger presence module failure, Codes 20 & 81 (main passenger side airbag not getting reading)
Repairs/costs cited: Passenger presence module or sensor replacement costs owners $600–$1,300. Some dealers cite corrosion or loose crimps in connectors under the seat. Tightening harnesses temporarily resolved symptoms in some cases; formal fix involves splicing and soldering wire harnesses per recall bulletins.
Recalls/TSBs owners mention: GM recall 14V118 (N14030) addressed corrosion/loose crimps in driver and passenger side airbag harness connectors for certain VINs; not all 2008 models included. Technical bulletins 10085D and 10335B issued for connector reroute/replacement. Some vehicles treated under 2011 voluntary program (driver side only); 2014 recall added driver side fix, but owners report VINs excluded despite identical symptoms. Dealers initially stated problem could not be duplicated or was not covered by warranty.
Unintended Airbag Deployment When Wet
Side curtain airbags deploy spontaneously when vehicle interior accumulates significant water from roof leaks. Water intrusion into electrical systems, particularly battery compartment and airbag modules, triggers false deployment signals.
When: Occurs after heavy rain; reported after vehicle sat with windows down in garage while fan was running. Water accumulation can occur months into ownership if roof leak is undetected.
Symptoms owners cite: Loud explosion sound from side curtain airbags deploying without collision or external trigger; Engine shuts off immediately after deployment; Flashers illuminate; Preceded by water pooling in floor boards (8+ gallons reported) and battery compartment saturation
Repairs/costs cited: No repair cost cited; owners describe disconnecting battery immediately to prevent further unintended deployments or fire risk.
Recalls/TSBs owners mention: GM acknowledges roof leak issue via technical bulletins but has not issued a recall for roof leaks themselves (deemed non-safety issue). However, when water damages airbag electronics and triggers deployment, this becomes a safety hazard. No specific airbag recall addresses water-triggered deployment.
Service Airbag Light Persistent Illumination Despite Recall Repair
Service airbag light remains on or recurs shortly after recall repair work. Dealers performed airbag harness repairs per GM directives but light continues or re-illuminates, sometimes with new fault codes. Owners report being charged for additional repairs despite recall work.
When: Light recurs within days to weeks after recall repair completion; some owners had light return within a month after paid repair.
Symptoms owners cite: Service airbag message on dashboard persistent or intermittent after recall repair; Check engine light may also illuminate in parallel; Light may cycle on/off or stay on constantly
Codes mentioned: Driver side airbag fault codes, Passenger side airbag fault codes, Secondary codes appearing post-repair (e.g., intake manifold tuning valve, check engine)
Repairs/costs cited: Recall repair (splicing and soldering harness connectors) performed at no cost to owner. Subsequent failures treated as separate issues; dealers bill $150–$950 for diagnostics and additional repairs (e.g., airbag or sensor replacement).
Recalls/TSBs owners mention: GM issued recall 14V118 (14030/14030B) requiring harness connector removal, splicing, and soldering. Follow-up letter notified some owners of incorrect initial repairs. Owners reported that vehicles excluded from recall VIN ranges could not access free repair even with identical symptoms. Some dealers applied earlier bulletin fixes (driver side only in 2011 program), then charged $350+ for full 2014 recall-compliant repair.
Airbag Failure to Deploy During Frontal or Rear-End Collision
Driver or passenger airbags fail to deploy when vehicle is struck frontally or rear-ended at moderate to high speeds. Occupants sustain significant injuries (head, sternum, back, foot fractures) without airbag protection. GM engineer or dealership diagnostic reports vary: some state sensors did not trigger, others indicate sensors were damaged post-impact.
When: Reported in accidents ranging from 30 mph rear-end to high-speed pole strikes; mileages vary (83,000–unknown).
Symptoms owners cite: No airbag deployment despite significant frontal or rear impact; Steering column fracture, seat base detachment, or other severe structural damage without airbag cushioning; Service airbag light may have been on prior to accident or may be unrelated to non-deployment
Repairs/costs cited: Vehicles total loss or severely damaged; repair not completed. One owner reports body shop found 'fried' airbag sensor upon dismantling dashboard.
Recalls/TSBs owners mention: In one case, GM engineer concluded 'no sensors hit' despite impact severity; case closed, no further investigation. In another, post-accident inspection revealed damaged sensor, but consumer safety division declined investigation. No clear link established to pre-existing airbag system defects in manufacturer communications.
Water Intrusion from Roof Leak Damaging Airbag Electronics
Roof leaks allow water to enter passenger compartment, pooling in floor boards, battery compartment, and areas near airbag wiring and modules. Water contact with electrical connections causes corrosion, shorts, and secondary airbag faults (sensor malfunction, false deployment warnings).
When: Typically noticed after rain; can accumulate over months if leak goes undetected. Reported within first 6 months to 5+ years of ownership.
Symptoms owners cite: Interior fogging of windshield after rain; Water pooling in front floor boards (reported up to 8 gallons); Battery compartment filled with water; battery may not start vehicle or corrodes quickly; Airbag warning lights and messages appear or increase after water event; Electrical components malfunction (windows, ignition, airbags)
Repairs/costs cited: Roof seal repair or replacement; hose cleaning mentioned. Airbag sensor/module replacement if water-damaged. One owner paid $600 for passenger side airbag replacement; roof was sealed and hoses cleaned, but leak recurred within months.
Recalls/TSBs owners mention: GM technical bulletins acknowledge roof leak issues; not recalled as a safety issue. No specific directive to address water damage to airbag systems as a result of roof leaks.
Airbag System Multiple Component Failures Requiring Repeated Repairs
Vehicles exhibit recurring or cascading airbag system failures requiring multiple dealer visits, part replacements (driver airbag, passenger airbag, modules, sensors, wiring), and persistent warning lights. Despite repairs, lights recur or new faults emerge.
When: Failures begin early in ownership (under 6,000 miles) and recur throughout vehicle life; some owners report 4–5+ dealer visits within 1–2 years.
Symptoms owners cite: Service airbag light comes on intermittently or constantly; Multiple different components fail in sequence (driver airbag, passenger airbag, sensor, module); Parts back-ordered; 3-week wait times reported; Light recurs immediately or within weeks after repair
Codes mentioned: Driver side airbag faults, Passenger side airbag faults, Passenger presence sensor faults
Repairs/costs cited: $717.70 for driver side airbag and switch (one owner paid this twice in 4 months). Passenger presence module: $568–$1,300 depending on dealer. Diagnostic fees $110–$150 per visit. Some repairs covered under extended warranty; others not.
Recalls/TSBs owners mention: GM initially stated unable to duplicate problems. Some owners told 'no problem found' despite light on. Where repairs were authorized, parts replaced, but same code recurred or new code emerged. Owners asked GMC headquarters for coverage after independent dealer repair; told they would not cover costs if independent shop found a new problem, even though root cause unresolved.
Synthesized from 110 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 0 most recent
Had airbags trouble with your 2008 GMC Acadia?
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 airbags problem on the 2008 GMC Acadia?
It's a meaningful issue. 110 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $1,100.
At what mileage does the airbags typically fail?
Across the 72 complaints that reported odometer mileage, most airbags failures cluster between 49,000 and 113,000 miles, with the median around 86,000. A quarter of owners report trouble before 49,000; a quarter make it past 113,000. 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 $1,100 for airbags 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 airbags?
No active recalls currently cover airbags 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/2008/GMC/Acadia.
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.