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Service bulletins for the 2019 GMC Terrain

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1006 on file from NHTSA, as of 2026-10-19.

About P1101 on the 2019 GMC Terrain: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: P1101 are shown. Show all

Bulletins, newest first
20-NA-0472023-01-25. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides a service procedure to correct customer concerns of Front or Rear Crankshaft Oil Leak, MIL Illuminated with DTC P1101 Set.
PIP5651G2022-11-21. Service bulletin. STRUCTURE; POWER TRAIN. This Preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codes P0172, P0299, P0101, P0506, P1101.
22-NA-2242022-11-09. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides a repair procedure to correct a customer concern of Reduced Engine Power, Malfunction Indicator Lamp (MIL) Illuminated - DTCs P0101, P0172, P0299, P0506, and/or P1101 Set.
PIP5651F2021-09-13. Service bulletin. STRUCTURE; POWER TRAIN. This Preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codes P0172, P0299, P0101, P0506, P1101.
PIP5651E2021-09-13. Service bulletin. STRUCTURE; POWER TRAIN. This Preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codes P0172, P0299, P0101, P0506, P1101.
20NA0472021-05-24. Service bulletin. POWER TRAIN. This service bulletin provides a service procedure to correct conditions of Front or Rear Crankshaft Oil Leak, MIL Illuminated with DTC P1101 Set.
20NA0472021-05-03. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides a service procedure to correct conditions of Front or Rear Crankshaft Oil Leak, MIL Illuminated with DTC P1101 Set.
20NA0472020-08-31. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION; EQUIPMENT. This technical bulletin provides a service procedure to correct conditions of Front or Rear Crankshaft Oil Leak, MIL Illuminated with DTC P1101 Set.
20NA0472020-05-26. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This technical bulletin provides a service procedure to correct conditions of Front or Rear Crankshaft Oil Leak, MIL Illuminated with DTC P1101 Set.
20NA0472020-04-27. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION:SHIFT PATTERN INDICATOR. This technical bulletin provides a service procedure to correct conditions of Front or Rear Crankshaft Oil Leak, MIL Illuminated with DTC P1101 Set.
20NA0472020-03-30. Service bulletin. EQUIPMENT. This technical bulletin provides a service procedure to correct conditions of Front or Rear Crankshaft Oil Leak, MIL Illuminated with DTC P1101 Set.
N1922712002020-02-10. Service bulletin. ENGINE AND ENGINE COOLING. N192271200 - Emission Recall. Certain vehicles equipped with a 1.5-liter, 4 cylinder engine (RPO LYX or LFV). Under certain conditions the engine intake charge air cooler outlet duct may become disconnected from the throttle body when turbo boost is active. If this condition occurs, a reduced engine power message will be displayed, the available engine power will be reduced, the engine may run rough, and the malfunction indicator lamp (check engine light) will illuminate. When the vehicle reaches low speed or idle, the engine could stall. If this condition occurs the engine control module will set one or more of these diagnostic trouble codes: P0172 (Fuel Trim System Rich), P0299 (Engine Underboost), P0101 (Mass Air Flow (MAF) Sensor Performance), P1101 (Intake Air Flow System Performance), or P0506 (Idle Speed Low). Dealers are to install an improved charge air cooler retainer.
PIP5402E2019-11-12. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides the technician with the diagnosis and repair steps for a vehicle with a check engine light on with Diagnostic Trouble Code P015B or a reduced engine power message with Diagnostic Trouble Code P1101. Technician should look for a missing or damaged O-ring seal in the charge air cooler coupler.
N192266090 032019-10-21. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING. N192266090 03 - Customer Satisfaction Program. On certain vehicles, Dealers are to install a charge air cooler retainer kit. the charge air cooler outlet may become disconnected from the throttle body. A malfunction indicator light (MIL) will set on the instrument panel and a reduced engine power message will illuminate followed by reduced engine power. One or more of the following diagnostic trouble codes may be present: P0172, P0299, P0101, P1101, P0506. The vehicle may also run rough and could stall at low speed or idle conditions.
N192266090 022019-09-30. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:APPLIANCE:AIR CONDITIONER. N192266090 02 - Service Update. On certain 2019 model year Chevrolet Equinox, Malibu, and GMC Terrain vehicles, the charge air cooler outlet may become disconnected from the throttle body. A malfunction indicator light (MIL) will set on the instrument panel and a reduced engine power message will illuminate followed by reduced engine power. One or more of the following diagnostic trouble codes may be present: P0172, P0299, P0101, P1101, P0506. The vehicle may also run rough and could stall at low speed or idle conditions. Dealers are to install a charge air cooler retainer kit.
N192266090 012019-09-30. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; EQUIPMENT ADAPTIVE/MOBILITY. N192266090 01 - Service Update. On certain 2019 model year Chevrolet Equinox, Malibu, and GMC Terrain vehicles, the charge air cooler outlet may become disconnected from the throttle body. A malfunction indicator light (MIL) will set on the instrument panel and a reduced engine power message will illuminate followed by reduced engine power. One or more of the following diagnostic trouble codes may be present: P0172, P0299, P0101, P1101, P0506. The vehicle may also run rough and could stall at low speed or idle conditions. Dealers are to install a charge air cooler retainer kit.
N1922660902019-09-30. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:APPLIANCE:AIR CONDITIONER. N192266090 - Service Update. On certain 2019 model year Chevrolet Equinox, Malibu, and GMC Terrain vehicles, the charge air cooler outlet may become disconnected from the throttle body. A malfunction indicator light (MIL) will set on the instrument panel and a reduced engine power message will illuminate followed by reduced engine power. One or more of the following diagnostic trouble codes may be present: P0172, P0299, P0101, P1101, P0506. The vehicle may also run rough and could stall at low speed or idle conditions. Dealers are to install a charge air cooler retainer kit.
PIP5651D2019-09-16. Service bulletin. EQUIPMENT. This Preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codes P0172, P0299, P0101, P0506, P1101.
PIP5651C2019-08-12. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This Preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codes P0172, P0299, P0101, P0506, P1101.
PIP5651B2019-07-08. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codes P0172, P0299, P0101, P0506, P1101.
PIP5651A2019-07-08. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. This Preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codes P0172, P0299, P0101, P0506, P1101.
PIP56512019-06-10. Service bulletin. POWER TRAIN. This Preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codes P0172, P0299, P0101, P0506, P1101.
PIP5402D2018-08-20. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides the technician with the diagnosis and repair steps for a vehicle with a check engine light on with Diagnostic Trouble Code P015B or a reduced engine power message with Diagnostic Trouble Code P1101. Technician should look for a missing or damaged O-ring seal in the charge air cooler coupler.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.