diff --git a/grubby-bls b/grubby-bls
index aad243d..40cda08 100755
--- a/grubby-bls
+++ b/grubby-bls
@@ -545,6 +545,65 @@ update_bls_fragment() {
     update_grubcfg
 }
 
+update_timeout() {
+    local timeout=$1 && shift
+    if [[ $timeout =~ ^[0-9]+$ ]]; then
+        if grep -q "^GRUB_TIMEOUT=.*" ${grub_etc_default} ; then
+            sed -i -e "s/^GRUB_TIMEOUT=.*/GRUB_TIMEOUT=${timeout}/" ${grub_etc_default}
+        else
+            echo GRUB_TIMEOUT=${timeout} >> ${grub_etc_default}
+        fi
+        RUN_MKCONFIG=true
+        update_grubcfg
+    fi
+}
+
+update_blscfg() {
+    local blscfg=$1 && shift
+    if [[ $blscfg == true ]] || [[ $blscfg == false ]]; then
+        if grep -q "^GRUB_ENABLE_BLSCFG=.*" ${grub_etc_default} ; then
+            sed -i -e "s/^GRUB_ENABLE_BLSCFG=.*/GRUB_ENABLE_BLSCFG=${blscfg}/" ${grub_etc_default}
+        else
+            echo GRUB_ENABLE_BLSCFG=${blscfg} >> ${grub_etc_default}
+        fi
+        RUN_MKCONFIG=true
+        update_grubcfg
+    fi
+}
+
+update_terminal_input() {
+    local term_in=$1 && shift
+    if grep -q "^GRUB_TERMINAL_INPUT=.*" ${grub_etc_default} ; then
+        sed -i -e "s/^GRUB_TERMINAL_INPUT=.*/GRUB_TERMINAL_INPUT=${term_in}/" ${grub_etc_default}
+    else
+        echo GRUB_TERMINAL_INPUT=${term_in} >> ${grub_etc_default}
+    fi
+    RUN_MKCONFIG=true
+    update_grubcfg
+}
+
+update_terminal_output() {
+    local term_out=$1 && shift
+    if grep -q "^GRUB_TERMINAL_OUTPUT=.*" ${grub_etc_default} ; then
+        sed -i -e "s/^GRUB_TERMINAL_OUTPUT=.*/GRUB_TERMINAL_OUTPUT=${term_out}/" ${grub_etc_default}
+    else
+        echo GRUB_TERMINAL_OUTPUT=${term_out} >> ${grub_etc_default}
+    fi
+    RUN_MKCONFIG=true
+    update_grubcfg
+}
+
+update_serial_command() {
+    local serial_cmd=$1 && shift
+    if grep -q "^GRUB_SERIAL_COMMAND=.*" ${grub_etc_default} ; then
+        sed -i -e "s/^GRUB_SERIAL_COMMAND=.*/GRUB_SERIAL_COMMAND=${serial_cmd}/" ${grub_etc_default}
+    else
+        echo GRUB_SERIAL_COMMAND=${serial_cmd} >> ${grub_etc_default}
+    fi
+    RUN_MKCONFIG=true
+    update_grubcfg
+}
+
 set_default_bls() {
     local index=($(param_to_indexes "$1"))
 
@@ -642,8 +701,13 @@ Usage: grubby [OPTION...]
       --make-default                      make the newly added entry the default boot entry
       --remove-args=STRING                remove kernel arguments
       --remove-kernel=kernel-path         remove all entries for the specified kernel
+      --set-blscfg=value                  change value of GRUB_ENABLE_BLSCFG
       --set-default=kernel-path           make the first entry referencing the specified kernel the default
       --set-default-index=entry-index     make the given entry index the default entry
+      --set-timeout=timeout               change grub2 timeout value
+      --serial-cmd=cmd                    set grub2 serial command
+      --terminal-in=input-method          set grub2 terminal input
+      --terminal-out=output-method        set grub2 terminal output
       --title=entry-title                 title to use for the new kernel entry
       --update-kernel=kernel-path         updated information for the specified kernel
       --zipl                              configure zipl bootloader
@@ -658,8 +722,9 @@ EOF
 
 OPTS="$(getopt -o hc:i:b:? --long help,add-kernel:,args:,bad-image-okay,\
 config-file:,copy-default,default-kernel,default-index,default-title,env:,\
-grub2,info:,initrd:,extra-initrd:,make-default,remove-args:,\
-remove-kernel:,set-default:,set-default-index:,title:,update-kernel:,zipl,\
+grub2,info:,initrd:,extra-initrd:,make-default,remove-args:,remove-kernel:,\
+set-blscfg:,set-default:,set-default-index:,set-timeout:,\
+serial-cmd:,terminal-in:,terminal-out:,title:,update-kernel:,zipl,\
 bls-directory:,no-etc-grub-update,add-multiboot:,mbargs:,mounts:,boot-filesystem:,\
 bootloader-probe,debug,devtree,devtreedir:,elilo,efi,extlinux,grub,lilo,\
 output-file:,remove-mbargs:,remove-multiboot:,silo,yaboot -n ${SCRIPTNAME} -- "$@")"
@@ -732,6 +797,14 @@ while [ ${#} -gt 0 ]; do
             remove_kernel="${2}"
             shift
             ;;
+        --serial-cmd)
+            serial_cmd="${2}"
+            shift
+            ;;
+        --set-blscfg)
+            blscfg="${2}"
+            shift
+            ;;
         --set-default)
             set_default="${2}"
             shift
@@ -740,6 +813,18 @@ while [ ${#} -gt 0 ]; do
             set_default="${2}"
             shift
             ;;
+        --set-timeout)
+            timeout="${2}"
+            shift
+            ;;
+        --terminal-in)
+            term_in="${2}"
+            shift
+            ;;
+        --terminal-out)
+            term_out="${2}"
+            shift
+            ;;
         --title)
             title="${2}"
             shift
@@ -820,6 +905,26 @@ if [[ -n $display_info ]]; then
     display_info_values "${display_info}"
 fi
 
+if [[ -n $timeout ]]; then
+    update_timeout "${timeout}"
+fi
+
+if [[ -n $blscfg ]]; then
+    update_blscfg "${blscfg}"
+fi
+
+if [[ -n $term_in ]]; then
+    update_terminal_input "${term_in}"
+fi
+
+if [[ -n $term_out ]]; then
+    update_terminal_output "${term_out}"
+fi
+
+if [[ -n $serial_cmd ]]; then
+    update_serial_command "${serial_cmd}"
+fi
+
 remove_var_prefix "$(get_prefix)"
 
 if [[ -n $kernel ]]; then
diff --git a/grubby.spec b/grubby.spec
index 7337daf..97ac46f 100644
--- a/grubby.spec
+++ b/grubby.spec
@@ -3,7 +3,7 @@
 
 Name: grubby
 Version: 8.40
-Release: 83%{?dist}
+Release: 84%{?dist}
 Summary: Command line tool for updating bootloader configs
 License: GPL-2.0-or-later
 Source1: grubby-bls
@@ -74,6 +74,10 @@ fi
 %{_mandir}/man8/grubby.8*
 
 %changelog
+* Mon Jul 20 2026 Marta Lewandowska <mlewando@redhat.com> - 8.40-84
+- Empower grubby to update the grub timeout and other values
+  Resolves: RHEL-4341
+
 * Wed Jul 30 2025 Leo Sandoval <lsandova@redhat.com> - 8.40-83
 - Update cfg when setting a default kernel
   Resolves:#RHEL-101784