There may be a transmission performance concern on some 2014-2017 Spark models equipped with the CVT7 continuously variable-ratio automatic transmission (RPOs M4M, MR8). (Fig. 12) The Check Engine MIL may […]

Several radio-related performance issues may appear if all steps are not completed when programming the radio on 2018-2019 Regal, ATS, CTS, XTS, Terrain; 2019 CT6, XT4, Blazer, Camaro, Colorado, Equinox, […]

An engine stumble or stall after startup on some 2010-2017 Equinox and Terrain models equipped with the 2.4L 4-cylinder engine (RPO LAF, LEA) may be caused by a faulty aftermarket […]

Chevrolet teamed up with premier off-road aftermarket supplier AEV (American Expedition Vehicles) to create the new 2019 Colorado ZR2 Bison (RPO ULV). (Fig. 1) Fig. 1   The unique Bison […]

The new trailering app (RPO U1D) available on the 2019 Silverado 1500 and Sierra 1500 (Fig. 8) uses the K68 Trailer Lighting Control Module (TLCM), or Trailer Interface Module, to […]

If a 2015-2019 GM model is being serviced for an automatic transmission operating condition or a vibration concern that can be duplicated, GDS2 should be used to aid in identifying […]

Some 2017-2019 Colorado and Canyon models equipped with the 6-speed manual transmission (RPO N8D) may have a rattle sound coming from the transmission shift lever. The sound may be due […]

The Navigation Data SD cards for infotainment systems with embedded navigation (RPOs IOT, IOU) (Fig. 18) that are available on 2018-2019 Regal, ATS, CTS, XTS, Terrain; and 2019 CT6, XT4, […]

The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM certified repairs. The latest service topics from GM Brand Quality and Engineering covered in […]

An SUV with attitude was the inspiration behind the design of the all-new 2019 Chevrolet Blazer. (Fig. 1) The midsize Blazer slots between the Equinox and Traverse in the Chevy […]

A new transmission fluid exchange procedure and a new formula of Mobil 1 Synthetic LV ATF HP transmission fluid have been released to address torque converter clutch (TCC) shudder conditions […]

The new 2019 Silverado 1500 and Sierra 1500 offers bench seats (RPOs A52, AE7, AZ3) and bucket seats with a center console (RPO A50). When programming a Remote Keyless Entry […]

A Service 4WD message or Service Engine Soon message may display on the Driver Information Center of some 2019 Silverado 1500 and Sierra 1500 models. The following DTCs may be […]