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2020 Cadillac CT4 Service and Repair Manual
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$49.99 USD
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Covers all 2020 CT4 trims — V Sedan 4-Door, Sport Sedan 4-Door, Luxury Sedan 4-Door +1 more ·
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Complete repair procedures
Wiring diagrams & schematics
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$49.99
2020 Cadillac CT4 Service and Repair Manual
Regular price
$49.99 USD
Unit price
This factory service and repair manual for the 2020 Cadillac CT4 is built around the exact engine and trim on your build sheet, so the torque values, wiring diagrams, and diagnostic steps inside are the ones Cadillac published for this car, covering both the 2.0L L4 (VIN K, LSY) and 2.7L L4 (VIN L, L3B) turbocharged four-cylinders.
Engines covered
- 2.7L inline-four (166 cu in) — DOHC, turbocharged, gasoline
- 2.0L inline-four (122 cu in) — DOHC, turbocharged, gasoline
Body styles covered
- 4-door sedan
Trims covered
- Luxury
- Premium Luxury
- Sport
- V
Known issues on the 2020 CT4. Four recalls are on federal record for this model year. The first covers the roof rail side-curtain air bags, which may not have been installed correctly and can deploy improperly in a crash. The second covers the electronic brake boost system, where sensor connection contamination can interrupt communication with the sensor, requiring extra pedal force to slow and stop the car and raising crash risk. The third covers the daytime running light software, which may fail to deactivate when the headlights are on, producing glare that reduces visibility and raises crash risk. The fourth covers the 10-speed automatic transmission, which can sustain internal damage that locks up the wheels while driving, increasing the risk of a crash. Owners have filed 8 complaints for the year. The factory diagnostic and repair procedures behind each of those systems are here.
From an air bag or brake boost inspection to a DRL software check or transmission diagnosis, it keeps you on the OEM procedure and the correct specification for your specific 2020 CT4.
General Motors LLC (GM) is recalling certain 2020 Chevrolet Corvette and Cadillac CT4, CT5 and XT4, 2021 Chevrolet Trailblazer, and 2020-2021 Buick Encore GX vehicles. Sensor connection contamination
Consequence
If communication with the sensor is interrupted, the electronic brake boost assist could be lost. E
Remedy
GM will notify owners, and dealers will replace the electronic brake boost module, free of charge.
General Motors, LLC (GM) is recalling certain 2020-2023 Cadillac CT4 and CT5; 2021-2023 Buick Envision; and 2022-2023 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, Tahoe, GMC
Consequence
DRLs that do not deactivate as intended may result in a glare, reducing visibility, and increasing t
Remedy
The body control module software will be updated by a dealer, or through an over-the-air (OTA) updat
General Motors, LLC. (GM) is recalling certain 2020-2022 Cadillac CT4 and CT5 vehicles. The roof rail side-curtain air bags may not have been installed correctly, which could result in an improper ai
Consequence
Air bags that do not deploy properly can increase the risk of injury in a crash.
Remedy
Dealers will inspect both left and right-side roof rail air bags and reinstall the air bags, as nece
The document advise technicians after an engine repair involving removal of the camshaft actuators, the vehicle may set p1101 P0172 and or stalls when taken off idle. The technician is instructed to verify the intake and exhaust camshaft ac
This Preliminary information communicates to dealership technicians that if they encounter a customer vehicle with this concern, to perform the steps listed and should be able to reprogram the module and correct this.
This Preliminary information communicates an issue with a replace or low FOB battery message
This preliminary information communicates information about how to determine if a wheel and tires size change is available.
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC'ss
This Preliminary information communicates the possibility of DTC P30BF failing on low mile vehicles due to the possibility of the cylinder 1/2 sliding barrel binding on intake camshaft.
Showing the 8 most recent of 855 technical service bulletins on file with NHTSA.
Right rear brake light is out. There is a lot of moisture in the tail light causing the lights to corrode and go out
The contact owns a 2020 Cadillac CT4. The contact stated while driving 70 MPH, on several occasions, the vehicle failed to accelerate, hesitated, and then stalled. The vehicle was towed on three occas
The contact owns a 2014 Cadillac CT4. The contact stated that the "Service Safety Restraint System" message was displayed on the instrument panel while driving. The vehicle was taken to the dealer who