2019 Chevrolet Blazer · symptom sheet
"Shift to Park" or "Service Shifter" warning comes on
- 44owner reports
- 37,196median miles
- $600median quote
- 0involved a crash
Newest report Aug 27, 2026 · checked Sep 29, 2026
166 of the 186 complaints on this car are about the transmission and drivetrain. 44 of those describe shift to park warning, which makes it the most reported problem on the 2019 Blazer.
Tick what matches of 44 reports
Shift to park warning 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: 2021.
What this problem usually is
This sheet covers a dash message that says "Shift to Park" or "Service Shifter" when the car is already in Park, or when it's sitting in Drive with the shifter lights glowing. Owners say it won't let them turn the car off, or it flashes up on the highway.
What got replaced
Owners who name the part that was replaced mention the wiring harness (4 reports).
Recalls and investigations
One recall on the transmission and drivetrain 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 transmission and drivetrain 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
10 of the 44 reports quote a price. Each dot is one quote. The middle half runs $500 to $668.
When it happens
The middle half of failures fell between 21,000 and 61,000 miles, from the 12 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 2 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 seeing an intermittent Shift to Park message displayed while vehicle is in Park.
This technical bulletin provides repair information to correct a customer concern of seeing an intermittent Shift to Park message displayed while vehicle is in park.
What owners wrote
“I placed the shifter into the park position & a warning came on the dash stating the car is not in park as I turned off the ignition. The warning on the dash as well as an audible warning. I had to use the key fob to lock the doors. I took the car to the dealership for repairs.”
Filed May 28, 2024
“When parking gear is in park but when turning car off car is saying gear is not in park.Turning car back on gear says in park but when turning back off still says shift to park and then you have to willing gear to see whatâs going on. If gear is saying in park but actually not in park it can damage to car & people unknowingly”
Filed May 16, 2024
“I'm getting a Shift to Park message on my dashboard when the car is in park position telling me to take action with a loud dinging sound. I need to know if this is a GM issue? Thanks”
Filed Feb 25, 2024
“Vehicle not turning off. Switch to Park and vehicle prompts to switch to park. States vehicle is not in park. Gear selector switch is illuminated in P. Faulty transmission control switch.”
Filed Jul 7, 2023
Should you keep driving it?
This page can't tell you that. 0 of 44 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
- Engine stalls or loses power while driving 25 reports
- Engine overheats or leaks coolant 25 reports