2018 Cadillac XT5: problems, recalls and reliability
0 recalls and 66 owner complaints on record; the weakest area is engine (22% of complaints); the 2019 and 2020 model years look more trouble-free.
Data updated weekly
0
recalls
66
owner complaints
1
fire reports
35,670
typical failure mileage, mi
All counts are reports filed with NHTSA in the United States - US market only, not worldwide totals.
NHTSA crash testOverall ★★★★★Front ★★★★★Side ★★★★★Rollover ★★★★★
5-star NHTSA overall safety ratingNo recall campaignsOne of the most complained-about XT5 years (#2 of 8, age-adjusted)Weak spot: engine (22%)1 fire reportProblems reported early (median 35,670 mi)
Common problems
Computed from 66 owner complaints filed with NHTSA for this exact model year.
Engine (engine mechanics)22% · 13 complaints
Steering (steering wheel, rack, power assist)14% · 8 complaints
Electrical System (battery, wiring, electronics)14% · 8 complaints
Power Train (transmission, axles, driveline)12% · 7 complaints
Service Brakes (brakes)9% · 5 complaints
Visibility/Wiper (windshield, wipers, defroster, mirrors)5% · 3 complaints
“Check engine light sensor came on in mid-May which is the result of a faulty thermostat, also triggering a "Steering Assist is Reduced" message on the dashboard which I consider to be a safety issue. This is a known and common problem for this make, year and model and the cost to fix the problem is very expensive. This issue has been reported by many Cadillac owners on their forum. My mechanic confirmed the problem with the thermostat caused the steering assist is reduced message, along with the air conditioning malfunctioning.”Owner report · Engine · May 2026
“Thermostat failure causes steering assist to be reduced. This leaves more difficult steering especially in an emergency situation, thus a safety concern. The vehicle displays a warning: "Steering Assist Is Reduced, Drive with care". An internet search shows this is a well-known problem across all General Motor vehicles. This is also indicated by the technician notes on my repair invoice that a bulletin from the manufacturer has been issued. After restart the warning clears leaving the driver to believe all is well. After a number of miles it reappears.”Owner report · Steering · May 2026
“2018 xt5 code p128 steering assist is reduced drive with care its only has 37.282 miles on it steering got hard to control”Owner report · Steering · Aug 2025
Show 7 more owner reports
“Message on dashboard "steering assistance reduced drive with caution". Messages appeared April 2025 and July 2025. Previously electric module needed to be replaced. Steering message caused me to be very cautious. Radiator had to be replaced because of leak. Both issues repaired at dealership. Vehicle has less than 40,000 miles.”Owner report · Steering · Jul 2025
“The contact owns a 2018 Cadillac XT5. The contact stated that while driving at an undisclosed speed, the vehicle stalled with the check engine warning light illuminated. The vehicle was towed to the dealer where it was diagnosed that the engine had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 86,000.”Owner report · Engine · Mar 2025
“Rear toe arms are malfunctioning barely drive vehicle on 54342 mileage on vehicle. Having to do with steering jeopardize Leicester on my and my family. VMy vehicle has been inspected. This issue has been inspected by Cadillac mechanics and indicated needs immediate attention. No indicator lights were illuminated to inform me of danger. I am impalled about this situation and I shouldn't be charged for this mechanical default.”Owner report · Suspension · Jan 2025
“I received a Steering Assist is Reduced message and the cooling fan ramped up to full speed. In contacting Cadillac, it seems that it is a below temperature error for the thermostat. Unsure what the thermostat has to do with steering. Also in researching this, this is a wide spread issue and needs to be a recall. My XT5 has 48000 miles on it and the powertrain warranty expired 3 months ago. I believe this should be a recall and should be repaired by the manufacture as it could cause a safety issue while driving.”Owner report · Engine · Oct 2024
“The coolant thermostat was broken and gave two check engine codes P0128 and P0128P. AC was not functioning when the thermostat was not working, which can be dangerous in summer. It is also a very common problem with Cadillac XT5 and GMC Acadia.”Owner report · Engine · Sep 2024
“The tread is separating from the tire in chunks. Never seen this in a 21000 mile factory Michelin tire let alone any other tire before. It exposes the core of the tire which is a safety hazard. Called Michelin and they were only concerned about the warrantee, not the safety.”Owner report · Wheels · Jul 2024
“The contact owns a 2018 Cadillac XT5. The contact stated that while driving at slow speeds, the vehicle unintendedly shut off. The vehicle was towed to the local dealer who diagnosed that the body control module (BCM) had failed and needed to be replaced. The contact was informed that BCM failure was caused by internal corrosion to the unit due to condensation leaking from the HVAC water line, which was positioned above the BCM. The vehicle was repaired. The contact stated that the BCM unit was previously replaced due to the same failure. The manufacturer was notified of the failure. The failure mileage was 95,000.”Owner report · Electrical System · Jun 2024
When filing, owners marked a crash in 2 of these complaints and injuries in 2 - self-reported to NHTSA, not verified accident statistics.
Trouble codes owners mention
OBD-II codes that appear in NHTSA complaints about this car.
How other years compare
Check your exact XT5 by VIN
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Is the 2018 Cadillac XT5 reliable?
NHTSA has 66 owner complaints and 0 recall campaigns on record for the 2018 Cadillac XT5. The most complained-about area is engine (22% of complaints).
At what mileage do 2018 Cadillac XT5 problems usually appear?
Half of the complaints that mention mileage were filed at 35,670 miles or less.
Source: NHTSA recall campaigns and owner complaints (public domain). Counts reflect reports on file and are not a defect rate.