Back to 2021 GMC Acadia
Help

2021 GMC ACADIA

2.5L I4•AWD•AUTOMATIC•gas
2 active safety recalls on this vehicle — view recalls
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
Repairs0Labor564Torque4752Fluid9DTC971Battery0Maintenance0Recalls2
P0212moderate severityPowertrain

Injector Circuit/Open - Cylinder 12

on 2021 GMC Acadia 2.5L I4 · AWD

What this code means

Open circuit in the cylinder 12 fuel injector circuit.

Symptoms

  • Check Engine Light
  • Misfire cylinder 12

Common causes

  • Faulty injector #12
  • Open wiring

Diagnostic steps

  1. Test injector resistance
  2. Check wiring

Repair notes

Replace injector #12.

Other Powertrain codes on this vehicle

⚠ STILL BEHIND THE PAYWALL
The 2021 GMC Acadia repair data is incomplete because no one has sponsored it yet. For $99, we generate the full step-by-step procedures, then fact-check them with a second AI pass and your expert review. Your name on every procedure, permanently.
The same data would cost $169/mo from Mitchell1 or $30/year from ALLDATAdiy — and you'd be renting access, not freeing it. Sponsor once, free forever.
Sponsor the GMC Acadia — $99 →
Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →