Safety Alert Seat / Haptic Seat Inoperative with a possible Service Drivers Assist Message – 2021 Cadillac CT4

2021 Cadillac CT4

NHTSA ID Number: 10201271 Manufacturer Communication Number: PIC6427B   Summary This Preliminary information communicates that some vehicles may have been built with missing circuits to the drivers seat haptic motors. Engineering is aware of the issue and a Bulletin will be released in the future.     1 Affected Product Vehicle MAKE MODEL YEAR CADILLAC CT4 2021 … Read more

LM2 Diesel DTCs P0545 or P04D1 Set – 2020-2021 Chevrolet Silverado & GMC Sierra

2021 Chevrolet Silverado

NHTSA ID Number: 10201272 Manufacturer Communication Number: PIP5808   Summary This Preliminary information communicates to technicians to replace the ECM and affected sensor if diagnostics leads to replacement of the ECM.     Condition: SES light is on and DTCs P0545 or P04D1 set. P0545 – Exhaust Gas Temperature Sensor 1 (B131A) Circuit Low Voltage. DTC P04D1 – … Read more

Service Adaptive Headlamp Message, Lin Bus DTC U1523 Setting After Right Headlamp Replaced – 2013-2014 Cadillac XTS

2014 Cadillac XTS

NHTSA ID Number: 10201273 Manufacturer Communication Number: PIC6435B   Summary This Preliminary information communicates that U1523 may set after right headlamp replacement due to a part issue. Engineering is looking into the concern.     Condition Service Adaptive Headlamp message with DTC U1523 setting after right headlamp replacement.   Cause Part Issue   Correction: A parts issue … Read more

Intermittent Parasitic Battery Draw / Dead Battery / Slow Crank / Radio Stays On or Fades Slowly After RAP Cancel / (LIN Bus) – 2019-2020 Chevrolet Silverado & GMC Sierra

2020 Chevrolet Silverado

NHTSA ID Number: 10201275 Manufacturer Communication Number: PIT5750A   Summary This Preliminary information communicates an issue with the battery goes dead and provides diagnostics tips on inspecting the LIN bus.     Condition Some customers may comment of a dead battery. In addition to the dead battery, they may comment on any of the following items: – … Read more

Fuel Tank Hard To Fill Possible MIL With DTC P0446 – 2018-2020 Chevrolet Equinox & GMC Terrain

2020 Chevrolet Equinox

NHTSA ID Number: 10201280 Manufacturer Communication Number: PIP5496C   Summary This Preliminary information communicates an issue inside the fuel tank where the fuel vent hose may be disconnected from the fuel pump module assembly and  recommended repair procedures.     Condition Fuel tank hard to fill with fuel, evaporative emission canister saturated with fuel and possible DTC … Read more