2017 Cadillac CT6

Problems, Recalls & Reliability Report

Above Average

Quick Summary

The 2017 Cadillac CT6 has 28 owner complaints filed with NHTSA — that's 0.3x the segment average of 80. The most common issue is transmission problems (36% of all complaints), specifically: when auto stop is engage taking your foot off the brake pedal from a complete stop when the engine starts back up it has a harsh jerk sometimes, it feels as though someone has hit you from the rear. this been going on for three years the car has been in service twice for this problem the service tec.

Total Complaints

Recalls Issued

—/5

Safety Stars

0.3x

vs Segment Avg

Known Problems

TRANSMISSION

10 complaints

36%

• WHEN AUTO STOP IS ENGAGE TAKING YOUR FOOT OFF THE BRAKE PEDAL FROM A COMPLETE STOP WHEN THE ENGINE STARTS BACK UP IT HAS A HARSH JERK SOMETIMES, IT FEELS AS THOUGH SOMEONE HAS HIT YOU FROM THE REAR. THIS BEEN GOING ON FOR THREE YEARS THE CAR HAS BEEN IN SERVICE TWICE FOR THIS PROBLEM THE SERVICE TEC
• MY 2017 CADILLAC CT6 3.0 TT PREMIUM LUXURY HAS HAD THIS ISSUE SINCE I PURCHASED IT. DEALERSHIP STATE THAT THIS IS NORMAL AND I SHOULD LIVE WITH IT. IF I KNEW THIS BEFORE I PURCHASE THIS $98,000 VEHICLE I WOULD HAVE GONE MERCEDES-BENZ. THE ISSUES WITH THE 8-SPEED 8L90 GM TRANSMISSION ARE TWO-FOLD.
• The contact owns a 2017 Cadillac CT6. The contact stated that while driving at various speeds, the vehicle would hesitate upon depression of the accelerator pedal without warning. The contact had taken the vehicle to a dealer where they initially changed the transmission fluid and reprogrammed the t

Typical onset: 50K miles Est. repair: $500

“WHEN AUTO STOP IS ENGAGE TAKING YOUR FOOT OFF THE BRAKE PEDAL FROM A COMPLETE STOP WHEN THE ENGINE STARTS BACK UP IT HAS A HARSH JERK SOMETIMES, IT FEELS AS THOUGH SOMEONE HAS HIT YOU FROM THE REAR. THIS BEEN GOING ON FOR THREE YEARS THE CAR HAS BEEN IN SERVICE TWICE FOR THIS PROBLEM THE SERVICE TEC”

— NHTSA complaint filing

ELECTRICAL

4 complaints

14%

• WHEN YOU PT IN THE REVERVE THE OUT SIDE MIRRORS DID NOT TILTED , AND SOME TIME THE PARKING BREAK LIGHT ON
• The contact owns a 2017 Cadillac CT6. The contact stated that while driving at various speeds, the vehicle would hesitate upon depression of the accelerator pedal without warning. The contact had taken the vehicle to a dealer where they initially changed the transmission fluid and reprogrammed the t
• These vehicles have an issue tbat GM is aware of, with their 8 speed automatic transmissions which are used in multiple GM vehicles and these cause safety issues because for instance my vehicle switches gears randomly almost causing a wreck, and shuttering, and even slipping and when this happens th

Typical onset: 50K miles Est. repair: $500

“WHEN YOU PT IN THE REVERVE THE OUT SIDE MIRRORS DID NOT TILTED , AND SOME TIME THE PARKING BREAK LIGHT ON”

— NHTSA complaint filing

SPEED CONTROL

3 complaints

11%

• These vehicles have an issue tbat GM is aware of, with their 8 speed automatic transmissions which are used in multiple GM vehicles and these cause safety issues because for instance my vehicle switches gears randomly almost causing a wreck, and shuttering, and even slipping and when this happens th
• My vehicles transmission has a buzzing noise coming from the transmission oil pan and a gear shifting problem I took vehicle to Cadillac dealer whom can’t find the issue they changed the oil pan and the transmission lines . My vehicle is a 2017 Cadillac ct6 with 72027 miles . I’ve been to 4 Cadillac
• The vehicle experiences harsh shifting, surging, and jerking forward during normal driving conditions. The behavior has occurred repeatedly over several years and has been confirmed by the dealership. Multiple repair attempts, including transmission-related work, have not resolved the issue. The veh

Typical onset: 50K miles Est. repair: $500

“These vehicles have an issue tbat GM is aware of, with their 8 speed automatic transmissions which are used in multiple GM vehicles and these cause safety issues because for instance my vehicle switches gears randomly almost causing a wreck, and shuttering, and even slipping and when this happens th”

— NHTSA complaint filing

BRAKES

2 complaints

• WHEN YOU PT IN THE REVERVE THE OUT SIDE MIRRORS DID NOT TILTED , AND SOME TIME THE PARKING BREAK LIGHT ON
• Transmission - Jerks and studders (hesitation) in the course of normal driving. Brakes - Makes a squealing noise which has gotten louder over time.

Typical onset: 50K miles Est. repair: $500

“WHEN YOU PT IN THE REVERVE THE OUT SIDE MIRRORS DID NOT TILTED , AND SOME TIME THE PARKING BREAK LIGHT ON”

— NHTSA complaint filing

ENGINE

1 complaints

• WHEN AUTO STOP IS ENGAGE TAKING YOUR FOOT OFF THE BRAKE PEDAL FROM A COMPLETE STOP WHEN THE ENGINE STARTS BACK UP IT HAS A HARSH JERK SOMETIMES, IT FEELS AS THOUGH SOMEONE HAS HIT YOU FROM THE REAR. THIS BEEN GOING ON FOR THREE YEARS THE CAR HAS BEEN IN SERVICE TWICE FOR THIS PROBLEM THE SERVICE TEC

Typical onset: 50K miles Est. repair: $500

— NHTSA complaint filing

Estimated Repair Costs

TRANSMISSION(~50K mi)

$500

ELECTRICAL(~50K mi)

$500

SPEED CONTROL(~50K mi)

$500

BRAKES(~50K mi)

$500

ENGINE(~50K mi)

$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 28 owner complaints for this specific year, here's what to check or ask about:

☐
TRANSMISSION: WHEN AUTO STOP IS ENGAGE TAKING YOUR FOOT OFF THE BRAKE PEDAL FROM A COMPLETE STOP WHEN THE ENGINE STARTS BACK UP IT HAS A HARSH JERK SOMETIMES, IT FEELS AS THOUGH SOMEONE HAS HIT YOU FROM THE REAR. THIS BEEN GOING ON FOR THREE YEARS THE CAR HAS BEEN IN SERVICE TWICE FOR THIS PROBLEM THE SERVICE TEC
Typically appears around 50K miles. Repair cost ~$500
☐
ELECTRICAL: WHEN YOU PT IN THE REVERVE THE OUT SIDE MIRRORS DID NOT TILTED , AND SOME TIME THE PARKING BREAK LIGHT ON
Typically appears around 50K miles. Repair cost ~$500
☐
SPEED CONTROL: These vehicles have an issue tbat GM is aware of, with their 8 speed automatic transmissions which are used in multiple GM vehicles and these cause safety issues because for instance my vehicle switches gears randomly almost causing a wreck, and shuttering, and even slipping and when this happens th
Typically appears around 50K miles. Repair cost ~$500
☐
BRAKES: WHEN YOU PT IN THE REVERVE THE OUT SIDE MIRRORS DID NOT TILTED , AND SOME TIME THE PARKING BREAK LIGHT ON
Typically appears around 50K miles. Repair cost ~$500
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)