P1682 on GMC ENVOY — P1684

Q: "What does P1682 mean on a GMC ENVOY?"

"P1682 indicates: P1684. This is a manufacturer-specific powertrain code. 2 GMC ENVOY owners have reported this to NHTSA."

Q: "What are the most common causes of P1682 on GMC ENVOY?"

"Based on 2 NHTSA reports, the most commonly cited components are: Power Train, Electrical System. These percentages are based on the component field in owner complaints."

Q: "Is P1682 a safety concern on GMC ENVOY?"

"Of 2 NHTSA reports for P1682 on GMC ENVOY, 1 involved a crash and 1 involved a fire. Always consult a qualified mechanic for any diagnostic trouble code."

Q: "What should I do if my GMC ENVOY shows P1682?"

"1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare."

What P1682 Means on Your GMC ENVOY

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.

2 GMC ENVOY owners have reported this issue to NHTSA across model years 2006-2007. Most reports come from the 2006, 2007 model years. The most commonly reported component is Power Train (50.0% of reports).

Real GMC ENVOY Owner Reports

Source: NHTSA Complaints Database

"On may 3rd 2010, the truck just died in the middle of the road while driving home with my son at night. i had to quickly try to get to the side of the road without any power assist. the envoy would not start again, not even turn over."

— 2006 GMC ENVOY owner · POWER TRAIN · Filed 05/03/2010

"Faulty ignition switch caused vehicle engine to stall making all operation to fail car loss of control very dangerous while stalling on highways faulty code given is p1682 short circuit in ignition throttle and gas pedal also probable cause of faulty ecm,pcm also window module caught on fire while a"

— 2007 GMC ENVOY owner · ELECTRICAL SYSTEM · Filed 06/01/2015 ⚠️ Crash reported

All reports filed by vehicle owners directly with the U.S. Department of Transportation.

📊 Complaint Trend by Model Year

1

'06

1

'07

Common Causes on GMC ENVOY

Based on NHTSA complaint component analysis for this vehicle.

POWER TRAIN 50%

ELECTRICAL SYSTEM 50%

What To Do Next

1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
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.
3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.

Frequently Asked Questions

What does P1682 mean on a GMC ENVOY? ▾

P1682 indicates: P1684. This is a manufacturer-specific powertrain code. 2 GMC ENVOY owners have reported this to NHTSA.

What are the most common causes of P1682 on GMC ENVOY? ▾

Based on 2 NHTSA reports, the most commonly cited components are: Power Train, Electrical System. These percentages are based on the component field in owner complaints.

Is P1682 a safety concern on GMC ENVOY? ▾

Of 2 NHTSA reports for P1682 on GMC ENVOY, 1 involved a crash and 1 involved a fire. Always consult a qualified mechanic for any diagnostic trouble code.

What should I do if my GMC ENVOY shows P1682? ▾

1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare.

P1682 on Other Vehicles

→ All codes reported on GMC ENVOY