P1682 on GMC ACADIA
P1684
What P1682 Means on Your GMC ACADIA
P1682 is a diagnostic trouble code indicating: P1684. This code relates to the manufacturer-specific powertrain system. GMC describes this as: Driver 5 Line 2. The vehicle's computer detected a condition outside normal operating parameters and stored this code.
Real GMC ACADIA Owner Reports
Source: NHTSA Complaints Database
"My 2014 GMC Acadia constantly displays “Service Stabilitrak,” “Service Traction Control,” ABS, brake, and check-engine warning lights. The vehicle will not accelerate past 40 mph under normal driving."
"Vehicle stalls intermittently. Due to an earlier recall of the same model but not including the one I own. There is electrical shorting inside the fuse box in the ignition circuitry that causes this problem. This is a huge problem as there is no preemptive warning."
"A code p1682 -ignition switch circuit will pop up. i've had the problem for a year, the vehicle will seem like it doesn't have a lot of power at times. the engine light will come on, reduced engine power and traction control off. the battery voltage drops below 13 ."
All reports filed by vehicle owners directly with the U.S. Department of Transportation.
📊 Complaint Trend by Model Year
Common Causes on GMC ACADIA
Based on NHTSA complaint component analysis for this vehicle.
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
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2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
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3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.