The 2017 Cadillac Ct6 has 1 NHTSA recall campaign affecting an estimated 181 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 28 complaints with NHTSA, most often about the power train. Last updated July 5, 2026.
Recall campaigns
EXTERIOR LIGHTING21V7590002021-09-29181 affected
Defect
General Motors, LLC (GM) is recalling certain 2016-2017 Cadillac CT6 vehicles. The Park/Position lights may be excessively bright. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Consequence
The excessive brightness may affect the vision of other drivers, increasing the risk of a crash.
Remedy
Dealers will install right and left side in-line headlight jumper harnesses, free of charge. Owner notification letters were mailed November 3, 2021. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is N162016079.
Complaints by component
POWER TRAIN
10
ELECTRICAL SYSTEM
4
SERVICE BRAKES
2
VEHICLE SPEED CONTROL
2
ENGINE
1
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
1
FUEL/PROPULSION SYSTEM
1
STEERING
1
STRUCTURE:BODY
1
SUSPENSION
1
Total complaints28
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal
information removed.
“Unknown, the transmission slips,it wont drive now and my wheel barrings nearly snapped”
“Unknown, the transmission slips,it wont drive now and my wheel barrings nearly snapped”
“Unknown, the transmission slips,it wont drive now and my wheel barrings nearly snapped”
“My ct6 had a default engine light on,.dealer reports broken evap line.car has never been in an accident or damaged.upon inquiry dealer reports no issues known to them with this problem.however ,this same vehicle had transmission issue when purchased new and the dealer stated same findings.then…”
“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…”
“Water is getting into my trunk where the amp is and now my radio does not work only the back up camera. I cannot control the ac or turn on the air conditioner. Or is that how I would like it to blow”
“Water is getting into my trunk where the amp is and now my radio does not work only the back up camera. I cannot control the ac or turn on the air conditioner. Or is that how I would like it to blow”
“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…”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL,
FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2017 Cadillac Ct6 as of
July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page
contains ads and affiliate links. Full methodology.