The 2022 GMC Acadia represents the second-generation refresh with improved build quality over earlier models, but the 3.6L V6 carries forward piston ring and timing chain issues from prior years, while transmission oil cooler failures remain a platform weakness across both engines.
3.6L V6 Piston Ring Failure & Excessive Oil Consumption
Occasional · high severity
Typical onset: 40,000-80,000 mi
Symptoms: Burning 1+ quart of oil every 1,000-2,000 miles, Blue smoke from exhaust on cold start or acceleration, Check engine light with P0300-series misfire codes, Fouled spark plugs requiring frequent replacement
Fix: Requires complete engine teardown, piston ring replacement on all cylinders, often includes cylinder honing. 18-24 labor hours. Some cases need full short block if cylinder scoring is present. GM extended warranty covered some earlier cases but 2022s are hit-or-miss on goodwill.
Estimated cost: $4,500-7,500
Transmission Oil Cooler Line Leaks
Common · medium severity
Typical onset: 30,000-70,000 mi
Symptoms: Transmission fluid spots under vehicle near radiator area, Low transmission fluid level on dipstick check, Slipping or delayed shifts when fluid gets critically low, Pink or red fluid visible around radiator or cooler lines
Fix: Replace transmission oil cooler lines and fittings, flush contaminated coolant if cross-contamination occurred. 2-3 labor hours if caught early. If coolant enters transmission, full trans rebuild required adding 12+ hours.
Estimated cost: $400-900
3.6L V6 Timing Chain Stretch & Guides
Occasional · high severity
Typical onset: 80,000-120,000 mi
Symptoms: Cold start rattle lasting 5-15 seconds from engine front, Check engine light with P0008, P0011, P0014 cam correlation codes, Rough idle or hesitation during acceleration, Metal shavings in oil during changes
Fix: Replace both timing chains, guides, tensioners, cam phasers, and front cover gaskets. 14-18 labor hours. Critical to address before chain jumps timing which causes valve-to-piston contact and catastrophic damage.
Estimated cost: $3,200-5,000
Rear Suspension Trailing Arm Bushing Failure
Occasional · medium severity
Typical onset: 50,000-90,000 mi
Symptoms: Clunking noise from rear over bumps or when reversing, Steering wheel off-center after hitting bumps, Uneven rear tire wear on inside edges, Vehicle feels loose or unstable during lane changes
Fix: Replace rear trailing arm bushings, typically both sides recommended. Requires alignment after. 3-4 labor hours. NHTSA recall 22V-354 covered some units for suspension links but bushings often fail separately.
Estimated cost: $600-1,100
Transmission Mount Collapse (Front Mount)
Common · low severity
Typical onset: 40,000-80,000 mi
Symptoms: Vibration felt through steering wheel at idle in Drive, Clunk when shifting from Park to Drive or Reverse to Drive, Excessive engine movement visible when revving in Park, Vibration worsens with A/C compressor engaged
Fix: Replace front transmission mount. 1.5-2 labor hours. Hydraulic-style mount fails internally, loses dampening. Simple fix but significantly improves drivability.
Estimated cost: $250-450
Fuel Pump Module Failure
Rare · high severity
Typical onset: 60,000-100,000 mi
Symptoms: No-start condition with crank but no fire, Engine stalling at operating temperature randomly, Fuel pump whine louder than normal from rear seat area, Check engine light with P0087 low fuel pressure code
Fix: Replace complete fuel pump module assembly. 2-3 labor hours. Tank must be dropped. Recall 22V-636 addressed some fuel tank strap issues but pump itself fails separately on high-mileage units.
Estimated cost: $800-1,400
Owner tips
Check oil level every 500 miles on the 3.6L V6 — excessive consumption is your early warning for piston ring issues before catastrophic failure
Change transmission fluid at 50,000 miles regardless of 'lifetime fluid' claims — helps prevent cooler line seal failures
Inspect transmission cooler lines during every oil change for seepage — early catch prevents trans contamination
Use Top Tier fuel and add fuel system cleaner every 5,000 miles to prevent carbon buildup on direct-injection engines
Skip the 3.6L V6 models entirely due to piston ring history; if buying used, the 2.5L I4 is the safer bet with fewer catastrophic failure points, but budget $1,500-2,000 for deferred maintenance items between 50,000-80,000 miles.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
Fitment notes: H6 group also compatible; AGM battery required for start-stop system
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Every control module on the 2018-2022 GMC Acadia — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
📍 Engine compartment, mounted to ABS hydraulic unit on left front frame rail near master cylinder
🔧 GM SPS2 via MDI/MDI2
⚠️ Integrated with hydraulic unit. Brake bleeding required after replacement. Controls ABS, traction control, StabiliTrak.
Body Control Module (BCM)1.5 hr R&Rsecurity gateway +1.0 hr▸ programming details
📍 Behind left side of instrument panel, above fuse block
🔧 GM SPS2 via MDI/MDI2
⚠️ Controls lighting, door locks, wipers, horn, power windows. Extensive configuration required for all body options.
Transfer Case Control Module (TCCM)1.5 hr R&Rdealer / factory tool +0.4 hrAWD models (all Acadias are AWD or FWD; AWD has active transfer case)▸ programming details
📍 Mounted to transfer case on left side
🔧 GM SPS2 via MDI/MDI2
⚠️ Controls AWD engagement and torque distribution. Relearn procedure required.
📍 Engine compartment, rear of engine valley under intake manifold (3.6L V6); right side of engine block near firewall (2.5L I4); left front of engine near battery (2.0L turbo)
Headlamp Control Module (HCM)0.6 hr R&Raftermarket tool +0.3 hrwith automatic headlamps or LED/HID headlamps▸ programming details
📍 Behind left headlamp assembly in engine compartment
🔧 Autel or GM SPS2
⚠️ Controls adaptive lighting and auto high-beam functions when equipped.
Rear Camera Module (RCM)0.5 hr R&Rrelearn only +0.2 hr▸ programming details
📍 Integrated with rear liftgate handle assembly
🔧 GM SPS2 or Autel
⚠️ Standard equipment. Simple relearn typically sufficient unless part of Surround Vision system.
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
General Motors, LLC (GM) is recalling certain 2022 Cadillac XT5, XT6, and GMC Acadia All-Wheel Drive (AWD) vehicles. The fuel tank rollover valve may not provide a proper seal in the event of a rollover crash.
Consequence: A fuel tank rollover valve that does not properly seal can result in a fuel leak during a rollover crash, increasing the risk of a fire.
Remedy: Dealers will inspect the fuel tank and replace the fuel tank shell if the rollover valve is found to be dislodged or missing, free of charge. Owner notification letters were mailed July 27, 2022. Owners may contact Cadillac customer service at 1-800-458-8006 and GMC customer service at 1-800-462-8782. GM's number for this recall is N222366070.
SUSPENSION:REAR · 22V427000
2022-06-16
General Motors, LLC (GM) is recalling certain 2022 Cadillac XT5, XT6, and GMC Acadia vehicles. The left-rear suspension toe link may have been tightened improperly, which could result in a loose or separated toe link.
Consequence: A loose toe link can separate and cause a loss of vehicle control, increasing the risk of a crash.
Remedy: Dealers will inspect the left-rear suspension and replace the fastener if it is loose or missing, free of charge. Owner notification letters were mailed July 11, 2022. Owners may contact Cadillac customer service at 1-800-458-8006 or GMC customer service at 1-800-462-8782. GM's number for this recall is N222364330.
AIR BAGS · 21V702000
2021-09-10
General Motors, LLC. (GM) is recalling certain 2022 GMC Acadia vehicles. The sensing diagnostic module (SDM) may have been left in "manufacturing mode" and not activated at the assembly plant prior to shipment. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Consequence: The air bags will not deploy with an unactivated SDM, increasing the risk of injury in a crash.
Remedy: The vehicles will be returned to the assembly plant for SDM activation. Both affected vehicles are still in dealer inventory and therefore no owner notification letters will be mailed. Owners may contact GMC 1-800-462-8782. GM's number for this recall is N212344261.
Fuel economy (EPA)
City
19mpg
Highway
27mpg
Combined
22mpg
Fuel
Regular Gasoline
Capability & size
EPA class
Standard Sport Utility Vehicle 2WD
Wiper blades
Same specifications continue through this generation.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 2022 GMC Acadia 3.6L V6 and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.