2019 Chevrolet Blazer · symptom sheet
Engine stalls or loses power while driving
- 25owner reports
- 35,700median miles
- $668median quote
- 0involved a crash
Newest report Apr 13, 2026 · checked Oct 2, 2026
127 of the 186 complaints on this car are about the electrical system. 25 of those describe stalling. Only shift to park warning is reported more often on this car.
Tick what matches of 25 reports
Stalling on other Blazer years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2020.
What this problem usually is
Stalling reports are some of the most alarming on the site. The engine quits while the car is moving, sometimes on a highway and sometimes at a stop. Many owners say it restarted right away and the dealer found no stored code, which is part of why these complaints pile up before anything gets fixed.
What got replaced
Owners who name the part that was replaced mention the battery (7 reports).
Recalls and investigations
One recall on the electrical system covers the 2019 model year. A recall on the same system isn't always the same failure, so read the defect text.
The start/stop accumulator endcap may have missing bolts.
All 2 recalls on the 2019 Chevrolet Blazer, with the owner complaints on each recalled system
NHTSA investigations into the electrical system on the Blazer
Upper control arm ball joint breakage. Closed jul 30, 1999.
Engine compartment fires. Closed jul 31, 1996.
Fire in dash/instrum.clstr. Closed sep 14, 1994.
Elect. failures/fires. Closed jul 16, 1987.
None of these investigations covers the 2019 model year.
What owners paid
5 of the 25 reports quote a price. Each dot is one quote. The middle half runs $600 to $1,000.
When it happens
Too few of these reports state a mileage to give a range.
Is this a known problem?
The manufacturer has sent NHTSA 6 service bulletins or notices for the 2019 Chevrolet Blazer that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
This service bulletin provides repair information to correct a customer concern of No Crank, No Start, Quick Start/Stall, No FOB Detected, Key FOBs Inoperative, B3924 00, B3925 00, B3926 00, B3927 00, B3928 00 Set.
This service bulletin advises the tech that the rotational Clicking Noise Heard After Engine Shut Down may be normal characteristics of the vehicle.
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on.
This Preliminary information communicates that a rotational clicking noise heard after engine shut down is a design characteristic and no repairs should be attempted.
2 more on the 2019 Chevrolet Blazer page.
What owners wrote
“The well known Shift to Park issue where the park sensor is off and my vehicle wonât shut off without being able to register itâs in park. Auto garage quoted $600+ to replace the entire shift assembly. Thereâs a service bulletin out for this issue and the specific 2019 blazer but no recall”
Filed Sep 3, 2025
“1.The vehicle does not recognize it's in park periodically and will not shut off 2. Thermostat housing and thermostat failure 3. Tint covered chrome on exterior of body peeling off Only had the car 3 weeks Currently at dealership repairing thermostat out of pocket”
Filed Aug 28, 2025
“Coolant Thermostat needs replaced at 59945 miles. The temperature gauge stopped working and the A/C unit shut off. The temperature outside created a safety issue for my family and I to ride in the car. The engine light came on and a message that stated the Steering Assist was effected. This should not happen in a car under 60000 miles.”
Filed Apr 17, 2025 · 59,945 miles
“Receiving shift to park error when attempting to shut off my vehicle. In December 2021 I had the parts replaced at the dealership, and as of a week ago the issue has started back. I am concerned that I will be stucked somewhere unable to shut off my vehicle or worst-case it doesn't actually stay in park.”
Filed Aug 3, 2024
Should you keep driving it?
This page can't tell you that. 0 of 25 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Paid for this repair before a recall covered it? How recall reimbursement works
Other problems on this car
- "Shift to Park" or "Service Shifter" warning comes on 44 reports
- Engine overheats or leaks coolant 25 reports