What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer communications
6Original wording in English
BUICK, CADILLAC, CHEVROLET, GMC, HUMMER, PONTIAC, SAAB, SATURN
Reported code forms P2138
This technical bulletin provides repair information for repairing the IP to body harness connector to correct a customer concern for intermittent Malfunction Indicator Lamp (MIL) illuminated with Reduced Engine Power…
BUICK, CADILLAC, CHEVROLET, GMC, HUMMER, PONTIAC, SAAB, SATURN
Reported code forms P2138
This technical bulletin provides repair information for repairing the IP to body harness connector to correct a customer concern for intermittent Malfunction Indicator Lamp (MIL) illuminated with Reduced Engine Power…
CADILLAC
Reported code forms P2138
EMISSION RECALL (REVISED ORDERING INFORMATION). GENERAL MOTORS HAS DECIDED TO CONDUCT A VOLUNTARY EMISSION RECALL INVOLVING CERTAIN 2014 MODEL YEAR CADILLAC ATS VEHICLES. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH…
CADILLAC
Reported code forms P2138
14176A - EMISSIONS RECALL (REVISED PART INFORMATION). GENERAL MOTORS HAS DECIDED TO CONDUCT A VOLUNTARY EMISSION RECALL INVOLVING CERTAIN VEHICLES. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH THE ELECTRICAL…
CADILLAC
Reported code forms P2138
14176 - EMISSIONS RECALL. GENERAL MOTORS HAS DECIDED TO CONDUCT A VOLUNTARY EMISSION RECALL INVOLVING CERTAIN VEHICLES. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH THE ELECTRICAL TERMINALS ARE NOT PROPERLY CRIMPED…
CADILLAC
Reported code forms P2138
GM: THE MALFUNCTION INDICATOR LAMP IS ILLUMINATED WITH DTC P2138 OR P06A3. ENGINEER WOULD LIKE TO GATHER INFORMATION FROM THE VEHICLE PRIOR TO ANY ATTEMPTS TO REPAIR THE VEHICLE. *JS UPDATED 05/19/2014 *JS
Check vehicle applicability
6A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.