Buick Cascada 2016–2017 — technical service bulletin

Bulletin PIP5373A · NHTSA communication 10083131 · issued Aug 5, 2016

Technical service bulletin

communication type

Electrical System

component

2016–2017

model years

vehicle entries

Official summary

This preliminary information communication provides the technician with steps on how to program an engine control module when getting a service programming system error code e4491 or e4423. In some cases techline customer support center may need to be contacted to resolve the issue.

Vehicles covered

2016 Buick Cascada
2017 Buick Cascada
2016 Buick Enclave
2017 Buick Enclave
2016 Buick Encore
2017 Buick Encore
2016 Buick Envision
2017 Buick Envision
2016 Buick Lacrosse
2017 Buick Lacrosse
2016 Buick Regal
2017 Buick Regal
2016 Buick Verano
2017 Buick Verano
2016 Cadillac Ats
2017 Cadillac Ats
2016 Cadillac Ats-V
2016 Cadillac CT6
2017 Cadillac CT6 Plug-In Hybrid
2016 Cadillac CTS
2017 Cadillac CTS
2016 Cadillac CTS-V
2016 Cadillac Elr
2017 Cadillac Elr
2016 Cadillac Escalade
2017 Cadillac Escalade
2016 Cadillac Escalade Esv
2017 Cadillac Escalade Esv
2016 Cadillac SRX
2017 Cadillac SRX
2016 Cadillac XT5
2017 Cadillac XT5
2016 Cadillac XTS
2017 Cadillac XTS
2017 Chevrolet Bolt EV
2016 Chevrolet Camaro
2017 Chevrolet Camaro
2016 Chevrolet Caprice
2017 Chevrolet Caprice
2016 Chevrolet Caprice Police Pursuit
2017 Chevrolet Caprice Police Pursuit
2016 Chevrolet Cheverolet SS
2017 Chevrolet Cheverolet SS
2016 Chevrolet City Express
2017 Chevrolet City Express
2016 Chevrolet Colorado
2017 Chevrolet Colorado
2016 Chevrolet Corvette
2017 Chevrolet Corvette
2016 Chevrolet Cruze
2017 Chevrolet Cruze
2016 Chevrolet Equinox
2017 Chevrolet Equinox
2016 Chevrolet Express
2017 Chevrolet Express
2016 Chevrolet Express 4500
2016 Chevrolet Impala
2017 Chevrolet Impala
2016 Chevrolet Low Cab Forward 3500
2017 Chevrolet Low Cab Forward 3500

What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.